Add rational expressions with unlike denominators

x-5/4x^2-25x-21 + 4x^2+15x+9

Answers

Answer 1

Answer:

Explanation:

To add two rational expressions with unlike denominators, you need to first find a common denominator and then add the numerators.

The common denominator for the two given rational expressions is 4x^2 + 25x - 21.

The first expression can be written as (x - 5)/(4x^2 + 25x - 21), and the second expression as (4x^2 + 15x + 9)/(4x^2 + 25x - 21).

To find the numerators for these rational expressions, we multiply each fraction by the common denominator. We get:

x - 5 = (x - 5) * (4x^2 + 25x - 21) / (4x^2 + 25x - 21) = 4x^3 + 20x^2 - 4x - 105

and

4x^2 + 15x + 9 = (4x^2 + 15x + 9) * (4x^2 + 25x - 21) / (4x^2 + 25x - 21) = 4x^3 + 34x^2 + 6x + 189.

Now that we have the numerators, we can add the two rational expressions to get the result:

x - 5/4x^2 - 25x - 21 + 4x^2 + 15x + 9 = 4x^3 + 54x^2 + 2x + 84 / (4x^2 + 25x - 21)


Related Questions

PASSAGE III
A Rose by the Name Antique
With shears in hand, I clip a thin branch
from the rosebush in my backyard garden. I place this
clipping into the basket next to me and crouch under
31
31. A. NO CHANGE
basket next, to me
B.
C.
basket, next to me
D.
basket next to me,

Answers

Answer:

Explanation:

The sentence "I place this clipping into the basket next to me and crouch under" describes an action being taken by the speaker. The phrase "next to me" is a prepositional phrase that modifies the noun "basket".

In English, when a prepositional phrase modifies a noun, it is common to separate the noun and the prepositional phrase with a comma. This helps to clarify the relationship between the noun and the prepositional phrase, making the sentence easier to understand for the reader.

Therefore, option C: "basket, next to me" is the best choice because it correctly separates the noun "basket" and the prepositional phrase "next to me" with a comma. This makes the sentence clearer and easier to understand.

31. A.
NO CHANGE
B.
basket next, to me
C. basket, next to me
D.
D. basket next to me,

Answers

Answer:

d.basket next to me,

Explanation:

Which of the following best describes the mission of the X-1 aircraft based on hidden figures

Answers

The X-1 aircraft's mission is based on To put a man on the moon, travel at the speed of light, and launch an aeroplane into space

What purpose is the basis for Hidden Figures?

The latest box office sensation Hidden Figures (2017) sheds light on the previously mostly untold tale of the women who worked as computers on NASA's Project Mercury in the 1960s. The main three actors in the film are Taraji P. Henson, Janelle Monáe, and Octavia Spencer.

What aspect of Hidden Figures is the best?

When the women's car breaks down on the way to Langley Research Center and a police comes up asking for identification, Katherine hands him her card and murmurs seriously, "NASA, sir," in one of Hidden Figures' greatest scenes.

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College student average 7.7 hours of sleep per night with standard division of 35 minutes. If the amount of sleep is normally distributed what is the proportion of college students sleep for more than 8.6 hours

Answers

3564.2435544436780864

0.0294 is the proportion of college students sleep for more than 8.6 hours.

What does proportion mean in math?

An equivalence of two ratios is a proportion. We use proportions to construct equivalent ratios and find solutions to problems involving unknown numbers.If a change in one variable can be expected from a shift in the other, two factors are considered to be in proportion. For secondary school chemists, there are two different kinds of proportional relationships that are important: direct proportion and inverse proportion.

Accordingly, you can answer the task as follows:

population mean(u) =8.6 hours

& standard deviation( s)= 35/60 =0.583 hours

P(X>9.7) =  P(Z> ((9.7-8.6) / 0.583)

= P(Z>1.89)  

= 1 - P(Z<1.89)

= 1 - 0.9706    

= 0.0294

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Has anyone received this message while trying to sign fasfa? If so, What needs to be done to let it accept signatures so we can submit the form?

"Thank you for your patience. Currently, the system is unable to complete this action. Please return to the "FAFSA Roles" page and reenter your information to proceed. "

Answers

If you're encountering the message while trying to sign and submit your FAFSA, there are a few things you can try to resolve the issue:

How to resolve the issue

Clear your browser's cache and cookies, and then try to submit the FAFSA again.

Try using a different web browser, or try accessing the FAFSA website from a different device (e.g., a different computer, tablet, or smartphone).

Double-check that you have completed all required fields on the FAFSA form and that you have correctly entered all requested information.

Wait a few hours and try again, as the issue may be temporary and resolved on its own.

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what is the level of critical thinking when operating a computer after reading the manual.

Answers

Answer:

Explanation:

The level of critical thinking when operating a computer after reading the manual varies depending on the individual. However, in general, operating a computer after reading the manual would likely require a basic to intermediate level of critical thinking.

The individual would need to understand and apply instructions in the manual, troubleshoot any issues that arise, and make decisions based on the information available to them. For example, if the manual explains how to perform a specific task, the individual would need to understand and follow the steps accurately. If they encounter a problem, they would need to use critical thinking to identify the source of the issue and find a solution based on the information provided in the manual or through other resources.

Additionally, operating a computer also requires the individual to evaluate and analyze information, identify patterns and relationships, and make decisions based on this information. This all requires a certain level of critical thinking skills.

In summary, operating a computer after reading the manual requires the individual to use basic to intermediate level of critical thinking skills such as reading comprehension, problem solving, decision making, and information analysis.

Select the quadrant or axis where each ordered pair is located on a coordinate plane.


Quadrant I

Quadrant II

Quadrant III

Quadrant IV

xxx-axis

yyy-axis

(-9,-8)(−9,−8)left parenthesis, minus, 9, comma, minus, 8, right parenthesis

(1,0)(1,0)left parenthesis, 1, comma, 0, right parenthesis

(7. 5, 2)(7. 5,2)

Answers

Answer:

Explanation:

left parenthesis, 7. 5, comma, 2, right parenthesis

(-3, -4)(−3,−4)left parenthesis, minus, 3, comma, minus, 4, right parenthesis

(0, -2)(0,−2)left parenthesis, 0, comma, minus, 2, right parenthesis

Quadrant I, Quadrant II, Quadrant III, Quadrant IV, xxx-axis, yyy-axis

First one is Quadrant 4, second one is Quadrant 2, third one is also Quadrant 2.

Franny bought an Insurance (1)
one(2)
contract gives Franny(3)
for her computer. The contract has
No payment for damages caused by faulty wiring. The
for theft. If her computer is stolen, she con
file a claim to buy another one. She would pay a $500.00 (4)
year is $250.00 The contract became (6).
Insurance company would pay the rest of the cost. The (5)
on July 1.
and the
for one

Answers

Franny needs to pay an insurance premium of $250.00 per year

What is the Insurance Premium

An insurance premium is the amount of money that an individual or business pays to an insurance company in exchange for insurance coverage. It is the price of the insurance policy and is usually paid on a regular basis, such as monthly or annually.

Franny bought an insurance contract for her computer. The contract covers theft of the computer, but does not cover damages caused by faulty wiring. If Franny's computer is stolen, she can file a claim with the insurance company, and the insurance company will pay the rest of the cost to buy another computer, with a deductible of $500.00. Franny needs to pay a total premium of $250.00 per year for the insurance coverage. The contract started on July 1 and is valid for one year.

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The following data,
11,16,10,30,24,5,6,12,11,45,9,8,3,4,35,31,
represents the
number of days spent by COVID 19 patients admitted at the
Intensive Care Unit of the University of Ghana Medical
Centre. Find
1. the mean
2. range
3. interquartile range
4. variance and standard deviation
5. the coefficient of variation.
6. Comment on your results

Answers

Answer:

Explanation:

Here are the results for the data:

Mean: The mean, or average, of the data can be calculated by summing up all the values and dividing by the number of values:

(11+16+10+30+24+5+6+12+11+45+9+8+3+4+35+31)/16 = 201/16 = 12.5625

So, the mean number of days spent by COVID-19 patients in the ICU is 12.5625 days.

Range: The range of the data is the difference between the maximum and minimum values:

45 - 3 = 42

So, the range of the data is 42 days.

Interquartile Range: The interquartile range (IQR) is a measure of the dispersion of the data that is less sensitive to outliers than the range. To calculate the IQR, we first need to find the median (Q2), first quartile (Q1), and third quartile (Q3) of the data:

Q1 = (6+8)/2 = 7

Q2 = (11+12)/2 = 11.5

Q3 = (24+30)/2 = 27

The IQR is the difference between Q3 and Q1:

IQR = Q3 - Q1 = 27 - 7 = 20

Variance and Standard Deviation: Variance is a measure of the dispersion of the data that is used to calculate the standard deviation. The formula for variance is:

Variance = sum of squared deviations from the mean / number of values

First, we need to calculate the deviations from the mean:

11 - 12.5625 = -1.5625

16 - 12.5625 = 3.4375

10 - 12.5625 = -2.5625

...

The sum of the squared deviations from the mean is:

Variance = 596.9375/16 = 37.93359375

The standard deviation is the square root of the variance:

Standard deviation = √Variance = √37.93359375 = 6.15

Coefficient of Variation: The coefficient of variation (CV) is a measure of the relative variability of the data, expressed as a percentage of the mean. The formula for the CV is:

CV = (Standard deviation / mean) * 100

CV = (6.15 / 12.5625) * 100 = 49.03%

Comment on Results:

The mean number of days spent by COVID-19 patients in the ICU at the University of Ghana Medical Centre is 12.5625 days. The range of the data is 42 days, while the interquartile range is 20 days. The variance is 37.93 and the standard deviation is 6.15. The coefficient of variation is 49.03%, which indicates a relatively high degree of variability in the data. These results show that the number of days spent by COVID-19 patients in the ICU at the University of Ghana Medical Centre can vary widely, with some patients spending as few as 3 days and others spending as many as 45 days in the ICU.


Information about the proportion of a sample that agrees with a certain statement is given below. Use StatKey or other technology to
estimate the standard error from a bootstrap distribution generated from the sample. Then use the standard error to give a 95 %
confidence interval for the proportion of the population to agree with the statement.
In a random sample of 1000 people, 382 people agree, 578 disagree, and 40 are undecided.
Estimate the standard error.
Round your answer to three decimal places.
Standard error
Find the 95% confidence interval.
Round your answers to three decimal places.
The 95% confidence interval is

Answers

Answer:

Its 17% per person

Explanation:

To estimate the standard error, we can use a bootstrap resampling method. We randomly sample with replacement from the original sample and compute the proportion of agreement in each new sample.

What are the steps to estimate standard error ?The bootstrap resampling approach can be used with StatKey to calculate the standard error as follows:Please visit the StatKey website at https://lock5stat.com/StatKey/bootstrap.php.

Enter the numbers "Agree" as 382, "Disagree" as 578, and "Undecided" as 40 in the corresponding fields after clicking "Enter data."

Select "Bootstrap" under "Random samples" after clicking.

Set the number of resamples to 1000.

Look for the standard error in the "Bootstrap standard error" column after clicking "Compute." About 0.016 is the estimated standard error.

Consequently, 0.016 is the expected standard error.We can use the following formula to determine the 95% confidence interval:

Sample percentage +/- z*, confidence interval (standard error)

where z is the desired level of confidence's associated z-score. The z-score for a 95% confidence interval is 1.96.

The sample proportion of agreement is 382/1000 = 0.382.

Thus, the 95% confidence interval for the proportion of the population to agree with the statement is:

0.382 +/- 1.96*(0.016) = (0.351, 0.413)

Therefore, the 95% confidence interval is (0.351, 0.413).

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4x - y = 8
y = 3x - 1
If (x, y) satisfies the given system of equations, what is the value of y?

Answers

The value of y from the given equation is 26.

How to solve this?

We can substitute the second equation into the first equation to solve for y. Doing so, we get:

4x - y = 84x - (3x - 1) = 84x - 3x + 1 = 8x = 9

Now that we have x = 9, we can substitute it into either of the equations to find y. Let's use the second equation:

y = 3x - 1y = 3 * 9 - 1y = 26

So the value of y is 26 if (x, y) satisfies the given system of equations.

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A line 2 km long is measured with a tape of length 50 m, which is standardized at no pull at 15 °C. The tape in this section is 3 mm wide and 1.25 mm thick. If one half of the line is measured at a temperature of 20°C and the other half at 26°C and the tape is stretched with a pull of 22kg, find the corrected total length, given that the coefficient of expansion is 12*10-6 per oc , weight of tape be 7.75gm/cm3 and E=2.11*106 kg/cm2

Answers

Answer:

Explanation:

To solve this problem, we need to consider the effect of temperature on the measured length, as well as the effect of tape elongation due to the applied tension. The corrected total length can be calculated using the following steps:

Step 1: Find the thermal expansion of the tape at the two temperatures.

The thermal expansion of the tape can be calculated using the formula:

ΔL = αLΔT

where ΔL is the change in length, α is the coefficient of thermal expansion, L is the original length, and ΔT is the change in temperature. We can assume that the change in temperature is the same for the entire tape, so we only need to calculate ΔL for one half of the line. Using the given values, we get:

ΔL = αLΔT

= (12*10^-6 per oc) * (1000 m) * (5/2) * (20-15)

= 0.15 m

So the tape will expand by 0.15 m at a temperature of 20°C.

Similarly, at a temperature of 26°C, we have:

ΔL = αLΔT

= (12*10^-6 per oc) * (1000 m) * (5/2) * (26-15)

= 0.27 m

So the tape will expand by 0.27 m at a temperature of 26°C.

Step 2: Find the elongation of the tape due to the applied tension.

The elongation of the tape due to the applied tension can be calculated using the formula:

ΔL = (F * L) / (E * A)

where ΔL is the change in length, F is the applied force, L is the original length of the tape, E is the Young's modulus of the tape material, and A is the cross-sectional area of the tape. We can assume that the force is the same for the entire tape, so we only need to calculate ΔL for one half of the line. Using the given values, we get:

A = (3 mm) * (1.25 mm)

= 3.75 mm^2

= 0.375 cm^2

ΔL = (F * L) / (E * A)

= (22 kg) * (50 m) / (2.11*10^6 kg/cm^2 * 0.375 cm^2)

= 0.111 m

So the tape will elongate by 0.111 m due to the applied tension.

Step 3: Find the corrected total length.

To find the corrected total length, we need to subtract the thermal expansion of the tape at each temperature and add the elongation due to the applied tension. Since we are measuring only half of the line at each temperature, we need to double the result to get the total length. Using the values calculated in steps 1 and 2, we get:

Corrected length at 20°C = (2000 m / 2) - 0.15 m + 0.111 m

= 995.96 m

Corrected length at 26°C = (2000 m / 2) - 0.27 m + 0.111 m

= 994.84 m

Corrected total length = 2 * (995.96 m + 994.84 m)

= 3981.6 m

Therefore, the corrected total length of the line is approximately 3981.6 meters.

The corrected total length of the line is approximately 2000.07 meters.

What is coefficient of expansion?

A material's response to a change in temperature is measured by a coefficient of thermal expansion, which is frequently denoted by the symbol.

To calculate the corrected total length, we need to consider the effects of tape expansion and temperature on the tape and the measured line. Here are the steps to follow:

Calculate the expansion of the tape due to temperature difference:

The temperature difference between 15°C and 20°C is 5°C, and the temperature difference between 15°C and 26°C is 11°C.

The coefficient of expansion is [tex]12X10^-^6[/tex] per °C.

The length of the tape is 50m, and its width and thickness are 3mm and 1.25mm, respectively.

The expansion of the tape due to the temperature difference is:

ΔL = L₀ * α * ΔT

where L₀ is the initial length of the tape (50m), α is the coefficient of expansion ([tex]12X10^-^6[/tex] per °C), and ΔT is the temperature difference (5°C for the first half and 11°C for the second half).

ΔL1 = 50m x [tex]12X10^-^6[/tex]/°C * 5°C = [tex]310^-^3[/tex] m

ΔL2 = 50m x [tex]12X10^-^6[/tex]/°C * 11°C = [tex]6.610^-^3[/tex] m

Calculate the tension in the tape due to the applied pull:

The weight of the tape is 7.75 g/[tex]cm^3[/tex], and its dimensions are 3mm (width) and 1.25mm (thickness).

The mass of the tape is:

m = ρ x V = 7.75 g/[tex]cm^3[/tex] x 3mm * 1.25mm x 50m = 0.73125 kg

The tension in the tape due to the applied pull of 22kg is:

T = F/A = 22kg x g / (3mm * 50m) = 14.67 N

The stress in the tape is:

σ = T/A = T / (3mm x 1.25mm) = 3.72 x [tex]10^7 N/m^2[/tex]

Calculate the strain in the tape due to the stress:

The Young's modulus of the tape is E = [tex]2.1110^6 kg/cm^2[/tex] = [tex]2.11X10^1^0 N/m^2.[/tex]

The strain in the tape is:

ε = σ / E = [tex]3.72X10^7[/tex]N/[tex]m^2[/tex] / [tex]2.11X10^1^0 N/m^2[/tex] = [tex]1.76X10^-^3[/tex]

The elongation of the tape due to the strain is:

δL = L₀ * ε = 50m x 1.76 x [tex]10^-^3[/tex] = 0.088 m

Calculate the corrected length of the line:

The length of the line measured with the tape is 2 km = 2000 m.

Now, let's calculate the corrected total length of the line. The original measured length of the line is 2 km, or 2000 m. Therefore, the corrected total length of the line is:

Lc = 2000 m + ΔL1 + ΔL2 + ε1L1 + ε2L2

Lc = 2000 m + 0.009 m + 0.0198 m + 0.00340 * 1025 m + 0.00340 * 1025 m

Lc = 2000.0686 m

Thus, the corrected total length of the line is approximately 2000.07 meters.

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The following gives information about the proportion of a sample that agree with a certain statement. Use StatKey or other technology
to find a confidence interval at the given confidence level for the proportion of the population to agree, using percentiles from a
bootstrap distribution.
Find a 99% confidence interval if, in a random sample of 1000 people, 382 agree, 578 disagree, and 40 can't decide.

Round your answers to three decimal places.
The 99% confidence interval is

Answers

The confidence interval is found to be 0.003 if a random sample of 1000 people, 382 agree, 578 disagree, and 40 can't decide.

What is Bootstrap distribution?

Bootstrap distribution may be defined as a procedure that significantly uses the resampling data from one sample in order to generate a sampling distribution by repeatedly taking random samples from the known sample.

According to the question,

The number of people in a random sample = 1000

The number of people who agrees = 382.

The number of people who disagrees = 578.

The proportion of the people who agrees = 382/618 = 0.61.

q = 1 - p = 1 - 0.61 = 0.39.

se = [tex]\sqrt{\frac{pq}{n}[/tex] = [tex]\sqrt \frac{0.61*0.39}{1000}[/tex] = 4.79 × [tex]10^-^4[/tex].

For a confidence interval of 99%, we have a critical value of 2.364

The margin of error = 2.364 × 4.79 × [tex]10^-^4[/tex]

0.003.

Therefore, the confidence interval is found to be 0.003 if a random sample of 1000 people, 382 agree, 578 disagree, and 40 can't decide.

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Which expression calculates the speed in feet
per second of an object that travels a distance
of 20 feet every 4 seconds?

Answers

Answer: y = 5x

Explanation:

4sec ---> 20 ft

1sec ---> 20/4 = 5ft

5 ft/sec, therefore a linear equation for this is:

y = 5x

x^2+10 = 91
What is the positive solution to the given equation?

Answers

To solve this problem, we will factor.
x^2+10=91
Subtract 91 to both sides:
x^2+10-91=0
Calculate:
x^2-81=0
Factor:
(x+9)(x-9)=0
Separate:
x+9=0
x-9=0
Solve:
x=-9
x=9
The positive solution is x=9
Hope this helped!

Answer:

9

Explanation:

To find the positive solution to the equation x^2 + 10 = 91, we'll start by isolating x^2 on one side of the equation. To do this, we'll subtract 10 from both sides:

x^2 + 10 - 10 = 91 - 10

x^2 = 81

Next, we'll take the square root of both sides of the equation to solve for x:

√(x^2) = √(81)

x = ±9

Since we are looking for the positive solution, x = 9.


Use the given minimum and maximum data entries, and the number of classes, to find the class width, the lower
class limits, and the upper class limits.
minimum = 8, maximum = 91, 7 classes
The class width is ?

Answers

Answer:

Explanation:

To find the class width, we need to divide the range of the data (which is the difference between the maximum and minimum values) by the number of classes.

The range of the data is 91 - 8 = 83

The class width is 83 / 7 = 11.857142857142857 (rounded to one decimal place, it becomes 11.9)

To find the lower class limits, we start from the minimum value and add the class width repeatedly until we reach the upper limit.

Lower class limits:

Class 1: 8 (minimum value)

Class 2: 8 + 11.9 = 19.9

Class 3: 19.9 + 11.9 = 31.8

Class 4: 31.8 + 11.9 = 43.7

Class 5: 43.7 + 11.9 = 55.6

Class 6: 55.6 + 11.9 = 67.5

Class 7: 67.5 + 11.9 = 79.4

To find the upper class limits, we add the class width to each lower class limit.

Upper class limits:

Class 1: 8 + 11.9 = 19.9

Class 2: 19.9 + 11.9 = 31.8

Class 3: 31.8 + 11.9 = 43.7

Class 4: 43.7 + 11.9 = 55.6

Class 5: 55.6 + 11.9 = 67.5

Class 6: 67.5 + 11.9 = 79.4

Class 7: 79.4 + 11.9 = 91.3 (maximum value)

So, the class width is 11.9, the lower class limits are 8, 19.9, 31.8, 43.7, 55.6, 67.5, 79.4, and the upper class limits are 19.9, 31.8, 43.7, 55.6, 67.5, 79.4, 91.3.

We must divide the data's range—that is, the difference between the maximum and minimum values—by the number of classes in order to determine the class width. The data's range is 91 - 8 = 83.

Thus, Class width is the distance between any class's (category's) upper and bottom bounds. It may also refer to one of the following more precisely, depending on the author.

The difference between the lower limits of two successive classes, or the difference between the upper limits of two successive (neighboring) classes.

An important element of a frequency distribution table is class breadth. A teacher documenting the percentage of pupils that received A's (90+), B's (80-89), C's (70-79), etc. on a test is a nice example of a frequency distribution table.

Thus, We must divide the data's range—that is, the difference between the maximum and minimum values—by the number of classes in order to determine the class width. The data's range is 91 - 8 = 83.

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Miguel de Cervantes never quite rose to the popular heights of his contemporaries like Lope de Vega
during the Golden Age of Spanish drama in the late 16th century. Vega's plays were dominated by
fast action and did not concern themselves with characterization. Cervantes' plays were quite the
opposite, and thus.
Which choice most logically completes the text?
declined in popularity following the late 16th century.
did not garner the kind of support that Vega's works obtained.
were more representative of the Golden Age of Spanish drama.
concerned themselves with both fast action and characterization.

Answers

Answer:

declined in popularity following the late 16th century.

Explanation:

The reason why Miguel de Cervantes never quite rose to the same level of popularity as Lope de Vega during the Golden Age of Spanish drama in the late 16th century may be due to differences in the styles of their plays. While Lope de Vega's plays were dominated by fast action and didn't focus much on characterization, Cervantes' plays were characterized by slow action and a greater focus on characterization. This may have made Cervantes' plays less appealing to audiences of the time who were more interested in fast-paced, action-packed plays. Additionally, the popularity of a playwright can also depend on many other factors such as the cultural context, political climate, and personal reputation of the playwright.

uddenham and Snyder obtained the following results for 66 California boys at ages 6 and 18 (the scatter diagram is football-shaped): average height at 6 = 3 feet 10 inches, SD = 1.7 inches average height at 18 = 5 feet 10 inches, SD = 2.5 inches, r = 0.8 Find the r.m.s. error for the regression prediction of height at 6 from height at 18.

Answers

The regression prediction error for height at 6 from height at 18 is 1.5.

What is Root Mean Square Error (RMSE)?

One of the methods most frequently used to assess the accuracy of forecasts is root mean square error, also known as root mean square deviation. It illustrates the Euclidean distance between measured true values and forecasts. The Root Mean Square Error (RMSE) statistic calculates the amount of error between two data sets. In other words, it contrasts a value that was anticipated with one that was observed or known.

What is RMS error in remote sensing?

A measurement of the variation between known locations and locations that have been digitalized or interpolated. RMS error is calculated by taking the square root of the difference between the known and unknown points, which is then multiplied by the number of test points.

√((1-r^2 )

The r.m.s. error for this regression's height at 18 versus height at 6 prediction is as follows:

√(1-〖0.8〗^2 ).2.5=√(1-0.64 ).2.5=√0.36 .2.5=0.6 ⋅2.5=1.5

The regression prediction error for height at 6 from height at 18 is:

√(1-〖0.8〗^2 ).1.7=√(1-0.64 ).1.7=√0.36 .1.7=0.6 ⋅1.7=1.02

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101
3. Mike solved the following linear system and got
a solution of (-5, 3).
Linear System:
-x+y=8
2x - y = 3
Mike's Work:

like to see step by step work

Answers

The value of x and y in the equation will be 3 2/3 and 12 2/3 respectively.

How to calculate the equation

An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario. It is important to note that an equation is the mathematical statement which can be made up of two expressions which are connected by an equal sign.

-x + y = 8

2x - y = 3

From equation i, y = 8 + x

2x - y = 3

2x - (8 + x) = 3

2x - 8 + x = 3

3x = 11

x = 11/3

y = 8 + 11/3

y = 11 2/3

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Find and copy a group of words that tells you What energy is used to power night mail.​

Answers

Answer:

Energy is used to power the "night mail" is not specified in the works of J.R.R. Tolkien, who was the author of "The Lord of the Rings" and "The Hobbit." The "night mail" is a reference to a postal service that delivers letters and packages at night, as described in the poem "Night Mail" by W. H. Auden. However, there is no information available about what energy source was used to power this service.

Solving a word problem with two unknowns using a linear...
On Tuesday, a local hamburger shop sold a combined total of 387 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the numbe
of hamburgers sold. How many hamburgers were sold on Tuesday?
hamburgers
X

Answers

129 hamburgers were sold on Tuesday.

How to solve this?

Let's start by using algebra to represent the information given in the problem.

We are told that the total number of hamburgers and cheeseburgers sold is 387.

If we let X be the number of hamburgers sold, then the number of cheeseburgers sold is 2X (since we are told that the number of cheeseburgers sold was twice the number of hamburgers sold).

So the total number of burgers sold can be expressed as:

X + 2X = 387

Simplifying the left-hand side of the equation, we get:

3X = 387

Dividing both sides by 3, we get:

X = 129

Therefore, 129 hamburgers were sold on Tuesday.

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The 152 heights of males from a data set of body measurements vary from a low of 157.0 cm to a high of 191.9 cm. Use the range rule of thumb to estimate the standard deviation s and compare the result to the standard deviation of 7.99 cm calculated using the 152 heights. What does the result suggest about the accuracy of estimates of s found using the range rule of​ thumb? Assume the estimate is accurate if it is within 1.3 cm.

Answers

The estimate is considered accurate if it is within 1.3 cm, or 8.72 cm, as indicated by the results about the accuracy of estimates of s discovered using the range rule of thumb.

What a standard deviation means?

While a high standard deviation indicates that the data are much more spread, a small standard deviation suggests that the data are clustered around the mean. The standard deviation is a measure of how variable your data set is on average. It displays the standard deviation of the each score with respect to the mean.

Why standard deviation is used and how should calcite it?

Standard deviation is important because it makes measurements easier to understand when the data is dispersed. The more equally distributed the data is, the bigger overall standard deviation of a data will be.

Determine the mean first. Step 2: Determine the square of the variation from the mean of each data point. In Step 3, add the values from Step 2. By the overall amount of information collected in step 4, divide.

The range rule of thumb is a rough estimation of a data set's standard deviation based on the data's range. The estimate comes from:

s ≈ R / 4

where R denotes the data range, which is the difference between the data set's maximum and minimum values. The guys' heights in this instance range from 191.9 to 157.0 cm, or 34.9 cm.

We estimate the standard deviation to be as follows using the range rule of thumb:

s ≈ 34.9 / 4 = 8.72 cm

We can observe that the estimate is within 1.3 cm of the real standard deviation by comparing it to the estimated standard deviation, which is 7.99 cm. This shows that the standard deviation estimate derived from the range rule of thumb is rather accurate.

It is important to remember that this rule of thumb is only a rough estimate, and that there are more exact ways to get the standard deviation, such as the calculation based on the mean and variance, which should be used in most situations.

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The following data,
11,16,10,30,24,5,6,12,11,45,9,8,3,4,35,31,
represents the
number of days spent by COVID 19 patients admitted at the
Intensive Care Unit of the University of Ghana Medical
Centre. Find
1. the mean
2. range
3. interquartile range
4. variance and standard deviation
5. the coefficient of variation.
6. Comment on your results

Answers

Answer:

Explanation:

Here are the results for the data:

Mean: The mean, or average, of the data can be calculated by summing up all the values and dividing by the number of values:

(11+16+10+30+24+5+6+12+11+45+9+8+3+4+35+31)/16 = 201/16 = 12.5625

So, the mean number of days spent by COVID-19 patients in the ICU is 12.5625 days.

Range: The range of the data is the difference between the maximum and minimum values:

45 - 3 = 42

So, the range of the data is 42 days.

Interquartile Range: The interquartile range (IQR) is a measure of the dispersion of the data that is less sensitive to outliers than the range. To calculate the IQR, we first need to find the median (Q2), first quartile (Q1), and third quartile (Q3) of the data:

Q1 = (6+8)/2 = 7

Q2 = (11+12)/2 = 11.5

Q3 = (24+30)/2 = 27

The IQR is the difference between Q3 and Q1:

IQR = Q3 - Q1 = 27 - 7 = 20

Variance and Standard Deviation: Variance is a measure of the dispersion of the data that is used to calculate the standard deviation. The formula for variance is:

Variance = sum of squared deviations from the mean / number of values

First, we need to calculate the deviations from the mean:

11 - 12.5625 = -1.5625

16 - 12.5625 = 3.4375

10 - 12.5625 = -2.5625

...

The sum of the squared deviations from the mean is:

Variance = 596.9375/16 = 37.93359375

The standard deviation is the square root of the variance:

Standard deviation = √Variance = √37.93359375 = 6.15

Coefficient of Variation: The coefficient of variation (CV) is a measure of the relative variability of the data, expressed as a percentage of the mean. The formula for the CV is:

CV = (Standard deviation / mean) * 100

CV = (6.15 / 12.5625) * 100 = 49.03%

Comment on Results:

The mean number of days spent by COVID-19 patients in the ICU at the University of Ghana Medical Centre is 12.5625 days. The range of the data is 42 days, while the interquartile range is 20 days. The variance is 37.93 and the standard deviation is 6.15. The coefficient of variation is 49.03%, which indicates a relatively high degree of variability in the data. These results show that the number of days spent by COVID-19 patients in the ICU at the University of Ghana Medical Centre can vary widely, with some patients spending as few as 3 days and others spending as many as 45 days in the ICU.

Unit 8 – Review of Perfect Tenses
1. The salesperson _______________________ (assure) the couple that if they _______________ (buy) the new furnace, it ___________(be) guaranteed for 15 years.

2. The wildfire __________ already ____________________ (burn) 1,000 acres of forest before the firefighters _____________________(can) put out the fire.

3. Carlos ____________________________ (live) in Manitoba for 2 years before he ____________________ (move) south to Hamilton.

4. Vanessa __________________________(work) at the Vietnamese restaurant since she ________________ (be) a student in EAP Level 2.

5. Samir __________________ (attend) a Formula 1 race in Bahrain when he _______________ (live) in the region.

6. Hayaam _______________________ (arrive) late for the meeting because she _____________________ (miss) her regular GO train.

7. Cee __________________ (meet) Vanessa when he ____________________(start) to work at Pho Binh Minh restaurant, but he _________________________________(not realize) she was his classmate for 2 weeks.

8. The company’s profits ______________________ (decline) for 2 years before it __________________________________________ (decide) to replace the president.

9. Even though Fatimah and Jessica __________________________ (live) in the same building for 2 years, they never _______________(meet) each other until they _________________ (join) the painting class at the community centre.

10. Abdul _____________________________ (be employed) at the company for 20 years, when they ____________________ (promote) him to manager.

11. Even though Celma _____________________________ (enjoy) living in Italy for more than 10 years, she and her husband ________________________ (decide) to move to Canada 4 years ago.

12. Sylvia _____________________ (be) a student in the LINC ESL classes for 2 months, when her teacher ___________________ (suggest) she join the EAP program.

13. Havel _________________________(enjoy) hiking in the mountains near his home town, but he ____________________(worry) about encountering a bear while hiking.

14. Khitam usually _______________(give) Jessica a ride home after class, but one day she ____________________________(drive) over a cat, so Jessica ____________________ (stop) driving with her.

15. Paloma _______________________(be) a lawyer for 2 years before she _______________(have) to present a case before a judge in court.

16. Her grandparent ________________________________(be married) for over 50 years, when her grandfather ____________________(fall) one day on some ice and _____________(die) because of his head injury.

17. Needa _______________________(live) in Canada for 3 years when she __________________(decide) to return to Palestine.

18. Although the company ____________________________________________(assure) my friends that their house would be built on time, it _______________________ (take) 8 months longer tan promised.

Answers


1. Assured, bought, would be
2. had already burned, could,
3. had lived, moved
4. had been working, had been
5. had attended, was living
6. had arrived, had missed
7. met, had started, didn't realize
8. had declined, had decided
9. had been living, had met, had joined
10. had been employed, promoted
11. had enjoyed, had decided
12. had been, suggested
13. enjoyed, worried
14. gave, had driven, stopped
15. had been, had
16. had been married, fell, died
17. had lived, had decided
18. had assured, took

Answer:

The salesperson assured the couple that if they bought the new furnace, it would be guaranteed for 15 years.The wildfire had already burned 1,000 acres of forest before the firefighters could put out the fire.Carlos lived in Manitoba for 2 years before he moved south to Hamilton.Vanessa has been working at the Vietnamese restaurant since she was a student in EAP Level 2.Samir attended a Formula 1 race in Bahrain when he was living in the region.Hayaam arrived late for the meeting because she missed her regular GO train.Cee met Vanessa when he started to work at Pho Binh Minh restaurant, but he did not realize she was his classmate for 2 weeks.The company’s profits had declined for 2 years before it decided to replace the president.Even though Fatimah and Jessica had been living in the same building for 2 years, they never met each other until they joined the painting class at the community centre.Abdul had been employed at the company for 20 years, when they promoted him to manager.Even though Celma had been enjoying living in Italy for more than 10 years, she and her husband decided to move to Canada 4 years ago.Sylvia had been a student in the LINC ESL classes for 2 months, when her teacher suggested she join the EAP program.Havel enjoys hiking in the mountains near his home town, but he worries about encountering a bear while hiking.Khitam usually gave Jessica a ride home after class, but one day she drove over a cat, so Jessica stopped driving with her.Paloma had been a lawyer for 2 years before she had to present a case before a judge in court.Her grandparent had been married for over 50 years, when her grandfather fell one day on some ice and died because of his head injury.Needa had lived in Canada for 3 years when she decided to return to Palestine.Although the company had assured my friends that their house would be built on time, it took 8 months longer than promised.

true or false

1. Christ’s cross stands as a symbol of the universal redeeming love.

2. Human Rights defined as all those rights which are essential for the protection of dignity.

3. Correcting sinners is one of the corporal works of mercy.

4.Jesus came to establish God’s kingdom of peace, justice, and love.

5. To shelter the homeless is one of the spiritual works of mercy.

6.Max Scheler discovered the meaning of life during his time of imprisonment.

7.The Good Samaritan approached Jesus and asked what good must do to gain eternal life.

8.

Answers

Answer:

1:true, and its a sign of Jesus saving us sinners.

2:true

3:false, you shouldn't correct sinners, its like saying; you just sinned, let me tell you what you did wrong.

4:true very true

5:true, you gave them a home they needed when they were desperate.

6:false

7:true

Explanation:

If I'm wrong I'm sorry. I hope I helped...

Apart from transport and food,mention Five other entrepreneurial opportunities within a radius of two kilometers fro. Gautrain stations that will deliver Services to users of the Gautrain​

Answers

Building, Print-on-Demand, Equipment Upkeep, Dropshipping, and Owning an Online Store.

What are three places where business opportunities can be found?

Furthermore, according to Schumpeter, the sources of chances for this type of entrepreneurship are found in changes in socio-demographics, politics, and technology.

Which entrepreneur is the finest example?

The launch of a new company venture is the best illustration of entrepreneurship. The market is opened up to new ideas by entrepreneurs, who are frequently credited as innovators or sources of fresh concepts.

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Player
Position
Alex Morgan Forward
Megan
Rapinoe
Crystal Dunn Defender
Ashley
Forward
Sanchez
Midfielder/forward
GAS FC
5 2 32 11
6 3 34 12
A. Megan Rapinoe
OB. Ashley Sanchez
O C. Chrystal Dunn
D. Alex Morgan
1 2 22 13
5 0 46 14
5. The table shows the statistics of four
soccer players in the 2021 season. Which
player attempted to make the most goals?

Answers

The player with the most attempted goals is Alex Morgan.

How to solve this

The number listed in the "GAS" column is the number of goals attempted by each player in the 2021 season.

To determine which player attempted to make the most goals, we would need to divide the number of goals attempted by the number of games played to find the average number of goals attempted per game.

For example, let's consider Alex Morgan:

GAS: 5

Games Played: 2

Average Goals Attempted per Game = GAS ÷ Games Played = 5 ÷ 2 = 2.5

let's perform the calculation for each player:

Alex Morgan: 5 ÷ 2 = 2.5Megan Rapinoe: 6 ÷ 3 = 2Crystal Dunn: 5 ÷ 0 = undefined (since you can't divide by 0)Ashley Sanchez: 5 ÷ 5 = 1

Based on these calculations, Alex Morgan attempted to make the most goals, with an average of 2.5 goals attempted per game.

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could you pl.z help me

Answers

Answer:

Explanation:

Answer:

i got u i have your email

Step-by-step explanation:

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