please help me with my geometry i cant fail this class or i’ll have to move out of my parents house :(

Answer:

23.78 cm

Step-by-step explanation:

size of the missing angle is (180 - 90 - 18) = 72°

angle 72° is opposite the side x. angle 90° is opposite side 25.

x/sin 72  =  25/sin 90

multiply both sides by sin 72:

x = (25 X sin 72) / sin 90

   = (23.78) / 1

  = 23.78 cm

Patel can use the quadratic formula, which states that x = (-b ± √(b2 - 4ac)) / 2a, where a, b, and c are the coefficients of the quadratic equation.

Patel can use several steps to solve the quadratic equation 8x2 + 16x + 3 = 0.

Here are three options he could use:
1. Complete the square: Patel can rewrite the equation as 8(x2 + 2x + 1) = –3 + 8, which simplifies to 8(x + 1)2 = 5.

Then, dividing by 8 on both sides, he gets (x + 1)2 = 5/8.

Finally, taking the square root of both sides, he gets x = –1 ± √(5/8).
2. Use the quadratic formula:

In this case, a = 8, b = 16, and c = 3.

Plugging these values into the formula, he gets x = (-16 ± √(162 - 4(8)(3))) / (2(8)), which simplifies to x = (-16 ± √100) / 16. Thus, x = –1 ± (1/2).
3. Factor the equation: Patel can try to factor the quadratic equation by looking for two numbers that multiply to 3 and add to 16.

However, since there are no such numbers, this approach may not work.

To solve the quadratic equation 8[tex]x^2[/tex] + 16x + 3 = 0, Patel could use the following,

Divide the equation by 8 to simplify: [tex]x^2[/tex] + 2x + 3/8 = 0 2.

Use the quadratic formula, where a=1, b=2, and c=3/8: x = -b ± √([tex]b^2[/tex] - 4ac) / 2a 3.

Calculate the solutions: x = -1 ± √(4 - 3) / 2

These steps will help Patel solve the quadratic equation.

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The correct statement is that the theoretical probability of swimming, P(swimming), is one half, but the experimental probability is 16 over 40.

We know that there are 40 students at summer camp who are divided into two groups for either swimming or hiking. Each camper flips a coin, where heads represents swimming and tails represents hiking. The outcome frequency for swimming is 16 and for hiking is 24.
To compare the probabilities, we need to first understand the difference between theoretical probability and experimental probability. Theoretical probability is the expected probability of an event occurring based on mathematical calculations and assumptions, whereas experimental probability is the actual observed probability of an event occurring based on data from experiments or observations.
Option 1 states that the theoretical probability of swimming is one half, but the experimental probability is 24 over 40. This statement is incorrect because the theoretical probability of swimming is actually 50%, which is equal to one half, and the experimental probability of swimming is also 40%, which is equal to 16 over 40. Therefore, this option is false.
Option 2 states that the theoretical probability of swimming is one half, but the experimental probability is 16 over 40. This statement is correct because the theoretical probability of swimming is 50%, which is equal to one half, and the experimental probability of swimming is also 40%, which is equal to 16 over 40. Therefore, this option is true.
Option 3 states that the theoretical probability of swimming is 16 over 24, but the experimental probability is one half. This statement is incorrect because the theoretical probability of swimming is actually 50%, which is not equal to 16 over 24, and the experimental probability of swimming is also 40%, which is not equal to one half. Therefore, this option is false.
Option 4 states that the theoretical probability of swimming is 24 over 40, but the experimental probability is one half. This statement is incorrect because the theoretical probability of swimming is actually 50%, which is not equal to 24 over 40, and the experimental probability of swimming is also 40%, which is not equal to one half. Therefore, this option is false.
In conclusion, the correct statement is that the theoretical probability of swimming, P(swimming), is one half, but the experimental probability is 16 over 40.

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X must be equal to 0 for M to be singular.

For M to be singular, its determinant must be zero. So, we can set up the equation:

| 2 2 1 |

| 6 2 -x |

| 2 1 3 | = 0

Expanding the determinant along the first row, we get:

2 | 2 -x |

-6 | 1 3 | = 0

Multiplying the determinant of the 2x2 matrix by 2, we get:

4(-x - 3) - (-6)(2) = 0

Simplifying the left-hand side, we get:

-4x - 12 + 12 = 0

Solving for x, we get:

-4x = 0

x = 0

Therefore, X must be equal to 0 for M to be singular.

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Answer:

Michael is 33 yrs old. John is 16 yrs old.

Step-by-step explanation:

Let M = Michael's age

Let J = John's age

M + J = 49

M-17 = J

Substitute the 2nd equation for J in the 1st equation and solve for M.

M + J = 49

M + (M-17) = 49

2M - 17 = 49

2M = 49+17

2M = 66

M = 33

So Michael is 33.

M + J = 49

33 + J = 49

J = 49-33

J = 16 John is 16.

Check that the answers work

33-16 = 17

33+16+49

Answer:

John is 16 and Michael is 33

Step-by-step explanation:

(Let John’s age be x)

Michael is 17 years older than John.

The sum of their ages is 49. So:

Simplifying the equation:

Subtracting 17 from both sides gives:

Dividing both sides by 2 gives:

So, John is 16 years old. If Michael is 17 years older, we can add 17 to 16:

Therefore, John’s age is 16 and Michael’s age is 33.

The Revenue Rate Variance for the practice is $9,615.90, which means that the practice generated $9,615.90 more revenue than budgeted for each visit.

To calculate the Revenue Rate Variance for the practice, we first need to calculate the budgeted and actual revenue rates. The revenue rate is the revenue per visit.

Budgeted revenue rate = Budgeted revenue / Budgeted visits

= $150,000 / 2,000

= $75 per visit

Actual revenue rate = Actual revenue / Actual visits

= $175,000 / 2,210

= $79.19 per visit

Next, we can calculate the Revenue Rate Variance using the following formula:

Revenue Rate Variance = (Actual revenue rate - Budgeted revenue rate) x Actual visits

= ($79.19 - $75) x 2,210

= $9,615.90

Therefore, the Revenue Rate Variance for the practice is $9,615.90, which means that the practice generated $9,615.90 more revenue than budgeted for each visit.

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[tex]y=-8x-2\\y=-6x+4[/tex]

Subtracting the second equation from the first one, we get:

[tex]-2x-6=0\\2x=-6\\x=-3[/tex]

[tex]y=-8\cdot(-3)-2=24-2=22[/tex]

Therefore [tex](-3,22)[/tex].

Answer:

You will approximately have about 48,297.74

Step-by-step explanation:

The participants will walk 3 + 21 = 24 laps and run 15 laps if the Total distance is 24 laps.

The participants will walk and run if the total distance is 24 laps, we need to first find the values of A, B, C, and D. We can use the information given in the table to set up a system of equations:

A + B = 24   (total distance is 24 laps)

3 + B = C    (total is the sum of walking and running laps)

5 + 10 = D   (total running laps is 15)

Simplifying the equations, we get:

B = 24 - A

C = 3 + B

D = 15

Substituting the value of B in terms of A into the equation for C, we get:

C = 3 + (24 - A)

C = 27 - A

Now we can use the equation for the total distance to find the value of A:

A + (27 - A) = 24

27 = 24 + A

A = 3

Substituting A = 3 into the equations for B and C, we get:

B = 24 - 3 = 21

C = 27 - 3 = 24

Therefore, the participants will walk 3 + 21 = 24 laps and run 15 laps if the total distance is 24 laps.this solution is inconsistent with the values given in the table. So, there might be a mistake in the table or the problem statement. None of the given options match with this solution, but based on the given table, the closest option is: "They will walk 6 laps and run 18 laps." However, this solution is not consistent with the system of equations derived from the table.

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Hello

        S        a         T

2a + 6  /            /
          /             /       a + 17
        /             /
   V          a         U

you want ST = VU (it's good) and SV = TU (not good)

2a + 6 = a + 17

2a - a = 17 - 6

a = 9

Answer:depend school but most schools yes

Step-by-step explanation:

It is important to pass both but some school allow only to pass one or make an exception so you should be fine but if not you will have a second chance later on or next year

I hoped this helped

also if your good with 7th grade math do you mind helping my question I uploaded thanks if you can.

Answer:

14

Step-by-step explanation:

angle 90° is opposite the side x. angle 45° is opposite side 7√2.

x/sin 90 = (7√2)/sin 45

multiply both sides by sin 90 (sin 90 is = 1).

x = (7√2)/sin 45

 = 14

The number of pounds of cookies he has is 16

From the question, we have the following parameters that can be used in our computation:

Using the above as a guide, we have the following:

Weight = 4 pounds

Available chips = 1/4 of a bag

So, we have

Pounds = Weight /Available chips

Substitute the known values in the above equation, so, we have the following representation

Pounds = 4/(1/4)

Evaluate

Pounds = 16

Hence, he has 16 pounds of cookies

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The solutions for the system of linear equations are:

Here we want to solve a system of linear equations, these are:

x - 9y = -3

y = 7x - 6

To solve this system, we can use the substitution method, to do so, just replace the variable that is already isolated (y on the second equation) into the first one.

Then we will get:

x - 9*(7x - 6) = -3

We can solve this to get:

x - 63x + 54 = -3

-62x = -3 - 54

x = 57/62

And the value of y is:

y = 7x - 6

y = 7*(57/62) - 6 = 6.4 - 6 = 0.4

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Question:

Find the interception point between lines L1 and L2:

L1: x-9 y=-3 L2: y=7 x-6

Answer:

For the Box and Whisker Plot, these are the answers for all of the parts of the plot:

Minimum:  The minimum is the lower end of the whisker which is 2

Maximum: The maximum is the upper end of the whisker which is 16

Median: The median is the thick line you see that goes down through the box plot which is the number 8

First Quartile: The lower end line of the box plot which is 4

Third Quartile: Known as the Second Quartile, this is the upper end line of the box plot which is 14

Interquartile Range: The Interquartile Range is the numbers that starts from the First Quartile to the Third Quartile which is the numbers from 4 to 14

Therefore, the answers are 2, 16, 8, 4, 14, and 4-14. Hope this helps with your homework or assignment!

-5th Grade Honors Student who learned this yesterday

Answer:

30 wats due  to electrocorrespond period of time

Step-by-step explanation:

according to plan b ratio 89 quart to a million

Power usage over time can be approximated by a Riemann sum or computed exactly by integrating the function representing the power usage. For the given 10-hour data, the total power usage can be estimated by summing up the products of the power usage and time interval.

The power use of a customer over a 30-day period is given by a continuous function P = f(t), and we are asked to find the total number of kilowatt-hours used by the customer using Riemann sums and an exact formula.

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Answer:

18/25

Step-by-step explanation:

72 per cent =72/100

=36/50

=18/25

The larger the sample size, the smaller the SEM, and the more precise our estimates of the population mean become. However, it is important to note that the SEM only reflects the amount of error due to chance factors, and does not account for any bias or systematic error in the sampling process.

The standard deviation of the distribution of the sample means (sampling distribution) for all possible samples of size 81 that could be drawn from the parent population is known as the standard error of the mean (SEM). The SEM is calculated by dividing the population standard deviation by the square root of the sample size. Therefore, if the population standard deviation is known, we can calculate the SEM by dividing it by the square root of 81. If the population standard deviation is unknown, we can estimate it using the sample standard deviation.
The SEM represents the amount of variability in the sample means that we would expect to see if we repeatedly drew samples of size 81 from the same population. In other words, the SEM tells us how much error we would expect to see in our sample means due to chance factors alone.
The SEM is an important measure in inferential statistics because it helps us to calculate confidence intervals and to perform hypothesis tests. In general, the larger the sample size, the smaller the SEM, and the more precise our estimates of the population mean become. However, it is important to note that the SEM only reflects the amount of error due to chance factors, and does not account for any bias or systematic error in the sampling process.

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The estimated total number of bears in 2002 will be 1060.

To estimate the population size, the mark-recapture formula is applied. This formula is used to determine the unknown population size. First, a selected sample from the population of bears has the number marked initially and the total population. The formula is: N = MC/R

In the given question,

M = 2008

C = 38

R = 72

So, N = (2008)(38)/72

= 76304/72

1059 which is estimated at 1060.

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The equation that relates the cost of a bouquet to the number of balloons in the bouquet is: Y = 5.75x

The bouquet with 6 balloons, the cost per balloon is:

34.50 / 6 = 5.75

We can repeat this process for each bouquet to get:

6 balloons: cost per balloon = 5.75

9 balloons: cost per balloon = 3.83

12 balloons: cost per balloon = 3.04

we can write an equation of the form: Y = kx

where Y is the cost of a bouquet,

x is the number of balloons in the bouquet, and

k is a constant that represents the cost per balloon.

To solve for k, we can use any one of the bouquets to get:

34.50 = k(6)

Solving for k, we get:

k = 5.75

Therefore, the equation that relates the cost of a bouquet to the number of balloons in the bouquet is:

Y = 5.75x

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Hourly growth rate parameter is 1.97%

Given,

A sample of 2,400 bacteria selected from this population reached the size of 2,489 bacteria in one and a half hours.

Let,

y = population after given time x

x = time of passage in hours

p = size of initial population

k = constant for growth rate

[tex]y = pe^{kx}[/tex]

Substitute the values of variables,

2489 = 2400 e^1.5k

1.03 = e^1.5k

Take Ln on both sides to remove the exponent,

ln(1.03) = ln(e^1.5k)

0.029 = 1.5k

k = 0.029/1.5

k = 0.0197

k = 1.97%

Thus with the help of exponent the hourly growth rate parameter can be found out.

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Answer (3x−2)(3x+2)^2

Step-by-step explanation:

Jake hears that 60% of respondents to a recent People Magazine survey said that their favorite fast food restaurant was Taco Bell. Jake believes this is way too high, as Taco Bell just isn't that good.

An SRS of peoples' favorite fast food restaurants is conducted across multiple locations. Of the 1080 respondents, 670 say that their favorite fast food restaurant is Taco Bell.  Therefore, based on the hypothesis test, Jake does now not have enough evidence to finish that the People Magazine survey changed erroneously.

To conduct a hypothesis take a look at this situation, we can set up the following hypotheses:

Null Hypothesis (H0): The percentage of people who recall Taco Bell as their preferred speedy meal-eating place is 60% or better.

Alternative Hypothesis (H1): The share of those who recall Taco Bell as their favorite fast food restaurant is less than 60%.

We will use the binomial test to check those hypotheses. The importance level, alpha (α), is given as 0.10, which means that we need a 90% self-assurance degree for our test.

Let's calculate the p-value based on the furnished sample information and check it in opposition to our importance stage:

Sample length (n) = 1080

Number of respondents who selected Taco Bell (x) = 670

Assuming the null hypothesis is true (p = 0.6), the expected number of respondents choosing Taco Bell is n * p = 1080 * 0.6 = 648.

We can now use the binomial distribution to calculate the p-cost:

p-price = P(X ≤ x) = Σ(C(n, x) * p^x * (1-p)^(n-x)), in which Σ is the sum from 0 to x.

Calculating this sum for x = 670, we want to evaluate the p-fee against our importance stage.

Using statistical software programs or tables, we discover that the p-price is about 0.9995.

Since the p-value (0.9995) is greater than the importance degree (0.10), we fail to reject the null speculation. With this method, there isn't enough proof to conclude that the proportion of folks who don't forget Taco Bell as their favorite speedy meals eating place is less than 60%. Therefore, based on the given pattern, Jake does now not have enough evidence to finish that the People Magazine survey changed erroneously.

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Option C. The best description of the spread of the data: The data has a range of 5, which is a narrow spread. This means that most of the students have taken a similar number of flights.

we have the maximum value = 15

The minimum value = 10

The range can be defined as the difference that exixts between the highest and the lowest values in a data

Hence we have 15 - 10

= 5

Therefore The data has a range of 5, which is a narrow spread. This means that most of the students have taken a similar number of flights.

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The graph of the line will be a straight line that slopes downward from left to right, intersecting the x-axis at -3 and the y-axis at 3.To find the x-intercept and y-intercept of the line −5x + 5y = 15, we can set either x or y to zero and solve for the other variable.

For the x-intercept, we set y = 0:

−5x + 5(0) = 15

−5x = 15

x = -3

So the x-intercept is -3.For the y-intercept, we set x = 0:

−5(0) + 5y = 15

5y = 15

y = 3

Therefore, the y-intercept is 3.

Now let's plot these intercepts on a graph. The x-intercept is at -3 on the x-axis, and the y-intercept is at 3 on the y-axis. We can connect these two points to draw the line.

By connecting the x-intercept (-3) and the y-intercept (3) on the graph, we obtain a straight line that represents the equation −5x + 5y = 15.

Note that the line passes through the points (-3, 0) and (0, 3).

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Answer:

y = 5x - 6

Step-by-step explanation:

the equation of a line in gradient- intercept form is

y = mx + c ( m is the gradient and c the y- intercept )

here m = 5 , then

y = 5x + c ← is the partial equation

to find c substitute (3, 9 ) into the partial equation

9 = 5(3) + c = 15 + c ( subtract 15 from both sides )

- 6 = c

y = 5x - 6 ← equation of line

The equation of the straight line with gradient 5 that passes through (3,9) is y = 5x - 6.

To find the equation of a straight line with a given gradient, we can use the point-slope form of the equation: y - y1 = m(x - x1). In this case, the gradient is 5 and the given point is (3,9). Plugging in the values, we have:

y - 9 = 5(x - 3)

Expanding the equation, we get:

y - 9 = 5x - 15

Then, rearranging the equation to the form y = mx + c, we have

y = 5x - 6

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Annabel's water bottle can hold [tex]48[/tex] fluid ounces of water.

To determine the number of fluid ounces in 6 cups of water, we need to know the conversion rate between cups and fluid ounces.

In the United States customary system, there are [tex]8[/tex] fluid ounces in [tex]1[/tex] cup. Therefore, we can use this conversion rate to calculate the number of fluid ounces in [tex]6[/tex] cups.

Since [tex]1[/tex] cup is equal to [tex]8[/tex] fluid ounces, we can set up a proportion:

[tex]\(\frac{1 \text{ cup}}{8 \text{ fluid ounces}} = \frac{6 \text{ cups}}{x \text{ fluid ounces}}\)[/tex]

By cross-multiplication, we find:

[tex]\(1 \text{ cup} \cdot x \text{ fluid ounces} = 8 \text{ fluid ounces} \cdot 6 \text{ cups}\)[/tex]

Simplifying the equation:

[tex]\(x \text{ fluid ounces} = 48 \text{ fluid ounces}\)[/tex]

Therefore, Annabel's water bottle holds [tex]48[/tex] fluid ounces of water.

To convert [tex]6[/tex] cups of water to fluid ounces, we use the conversion rate of 1 cup equals [tex]8[/tex] fluid ounces. Setting up a proportion, we find that [tex]6[/tex] cups is equal to [tex]48[/tex] fluid ounces. Hence, Annabel's water bottle can hold [tex]48[/tex] fluid ounces of water.

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