Cona Mother realize that her age is the difference of code is eight squared of K represent scores age which expression represents cons mothers age

Answers

Answer 1

The correct answer on the equation representing Kona's mother's age is option a) K² - 4.

Let M represent the Kona's mother's age = M = K² - 4.

Now substitute the value by taking Kona's age be 10.

= 10² - 4

= 100 - 4

=96.

Since the difference is Kona's age squared with subtracting 4.

The problem states that Kona's mother's age is the difference between Kona's age squared and four, We are given that the K represents Kona's age. Therefore, the expression for Kona's mother's age can be written as  K² - 4. This is because we substitute the K for the Kona's age and square it, then subtract four to find the mother's age. Hence the correct is option A. The difference code refers to the answer or result formed after subtracting the given equation or expression.

To learn more about equation click here

brainly.com/question/15707224

#SPJ4

Complete question

Kona's mother realized that her age is the difference of Kona's age squared and four. If K represents Kona's age, which expression represents Kona's mother's age? a) K² - 4 b) K³ - 4 c) K² + 4 d) K³ + 4


Related Questions

5 3/5 + 1/2 = ? what is the answer

Answers

Answer:

61/10

Step-by-step explanation:

Convert the mixed number to an improper fraction

28 / 5 + 1 / 2

= 61/10

Answer:

Simplified form: 6 1/10

Improper form: 61/10

Step-by-step explanation:

5 3/5 + 1/2

= 28/5 + 1/2

Then, you multiply both fractions so that the denominator is the same number. In this case, multiply the fraction (numerator and denominator) on the left by 2 and on the right by 5.

= 56/10 + 5/10

This way, you can add the numbers because they have the same denominator.

=61/10

express 2x^2 + 8x in the form a(x + b)^2 + c

Answers

The vertex form equivalent to the given expression; 2x² + 8x as required to be determined in the task content is; 2 (x + 2)² + 8.

What is the vertex form equivalent of the expression?

The vertex form equivalent of the given expression can be determined as follows;

2x² + 8x

2 (x² + 4x)

2 ( (x + 2)² + 4)

= 2 (x + 2)² + 8.

Ultimately, the vertex form equivalent of the given expression as required is; 2 (x + 2)² + 8.

Read more on vertex form;

https://brainly.com/question/24850937

#SPJ1

Secured loans are less costly than unsecured loans because _________.
They usually have a lower interest rate.
They require collateral.
They are less risky for the financial institution.
All of these are true.

Answers

Due to the fact that secured loans often have lower interest rates than unsecured loans, they are less expensive. They require collateral. They are less risky for the financial institution. The correct option is D.

What are secured loans?

A secured loan is one in which the borrower pledges an asset as security for the loan, turning the pledged asset into a secured debt owing to the lender (the creditor).

Some loans may be backed by assets other than your house; for instance, they may be backed by your automobile, jewelry, or other possessions. Because lenders can collect the asset in the event of a default on a secured loan, secured loans often have lower interest rates than unsecured loans.

To know more about secured loans follow

https://brainly.com/question/27616574

#SPJ1

Give the starting value a, the growth factor b, and the growth rate r if q = abt = a(1 r)t. write r as a percent. q = 79 (1.002) superscript t a. a. a = 79 b = 1.002 r = 0.2% b. a = 79.158 b = 1.002 r = 0.002% c. a = 79 b = 0.002 r = 1.002% d. a = 79.158 b = 0.002 r = 0.2%

Answers

r as a percent is a) a = 79, b = 1.002, and r = 0.2%.

The formula given, q = abt = a(1+r)t, represents exponential growth, where a is the starting value, b is the growth factor, r is the growth rate, t is the time period, and q is the final value after t periods.

Given q = 79(1.002)^t, we can see that:

a = 79 (the starting value)

b = 1.002 (the growth factor)

r = 0.2% or 0.002 (the growth rate, expressed as a decimal)

So, the correct answer is a) a = 79, b = 1.002, and r = 0.2%.

To learn more about percent here:

https://brainly.com/question/28670903

#SPJ4

12. Natalie is using one box to ship 10 books to a friend. Each book weighs 810 grams. The box weighs 250 grams. Shipping costs $3. 50 per kilogram. How much will it cost Natalie to ship the books?

Answers

The cost to ship a box of 250 grams, with 10 books of weight of 8.5kg by natalie is $ 29.75.

The total weight of the books and the box is:

10 books × 810 grams/book + 250 grams = 8,250 grams + 250 grams = 8,500 grams

To convert this to kilograms, we divide by 1000:

8,500 grams ÷ 1000 = 8.5 kg

The cost of shipping will be based on the weight, so we can multiply the weight in kilograms by the shipping cost per kilogram:

8.5 kg × $3.50/kg = $29.75

Therefore, it will cost Natalie $29.75 to ship the books of 8.5 kg

To know more about Cost:

https://brainly.com/question/35118

#SPJ4

a manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 430 gram setting. it is believed that the machine is underfilling the bags. a 21 bag sample had a mean of 421 grams with a standard deviation of 15 . assume the population is normally distributed. a level of significance of 0.1 will be used. find the p-value of the test statistic. you may write the p-value as a range using interval notation, or as a decimal value rounded to four decimal places.

Answers

A manufacturer working at the 430 gram setting, and a 21 bag sample had a mean of 421 grams with a standard deviation of 15. The p-value of test statistic is 0.0074.

To test whether the bag filling machine works correctly at the 430 gram setting, we can conduct a one-sample t-test. The null hypothesis is that the true mean weight of the bags filled by the machine is equal to 430 grams, and the alternative hypothesis is that the true mean weight is less than 430 grams.

The test statistic is calculated as:

t = (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size))

Plugging in the values given in the problem, we get:

t = (421 - 430) / (15 / sqrt(21)) = -2.77

The degrees of freedom for the t-distribution are n - 1 = 20.

Using a t-table or calculator, we can find the p-value associated with a t-score of -2.77 and 20 degrees of freedom. The p-value turns out to be 0.0074 (rounded to four decimal places).

Since the p-value is less than the level of significance of 0.1, we can reject the null hypothesis and conclude that the bag filling machine is underfilling the bags at the 430 gram setting.

To learn more about p-value click on,

https://brainly.com/question/16086075

#SPJ4

Work out the area of the shaded semicircle shown below.
If your answer is a decimal, give it to 2 d.p.
1.68

Answers

Step-by-step explanation:

the area of a circle is

pi×r²

r being the radius (1.68 m).

the area of half a circle is therefore

pi×r²/2

in our case

pi× 1.68²/2 = pi× 2.8224/2 = pi×1.4112 =

= 4.433415553... m² ≈ 4.43 m²

The area of the shaded semicircle is  1.11 meters squared.

What is area of shape?

A circle is a round-shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed shape, two-dimensional .

The area of shape is the space enclosed within the perimeter or the boundary of a given shape.

The area of a circle is expressed as ;

A = π[tex]r^{2}[/tex]

where r is the radius of the circle.

Therefore the area of a semi circle will be :

A = 1/2  π[tex]r^{2}[/tex]

r = d/2

r = 1.68/2 =0.84

A = 1/2 × 3.14 × 0.84 ×0.84

 = 1.11 meter squared.

Therefore the area of the shaded semi circle is 1.11 meters squared.

learn more about area of circle from

https://brainly.com/question/12374325

#SPJ2

The concession stand at a football game had 3,903 soft pretzels and 2,804 hard pretzels before the game began. When they count the food after the game, there is a total of 1,683 pretzels left. How many pretzels were sold?

Answers

Answer:

5024

Step-by-step explanation:

3903+2804= 6707

6707-1683=5024

Diane obtains a loan for home renovations from a bank that charges simple interest at an annual rate of 9.65%. Her loan is for $17,100 for 76 days. Assume
1
365
De not round any intermediate computations, and round your final answers to the nearest cent. If necessary, refer to the list of financial formulas.
each day is
of a year Answer each part below.
(a) And the interest that will be owed after 76 days.
$
(b) Assuming Diane doesn't make any payments, find the amount owed after 76 days.
?

I need help fast

Answers

a) The simple interest that will be owed the bank by Diane after 76 days is $343.59.

b) The final amount that Diane will repay the bank after 76 days is $17,443.59.

What is the simple interest?

The simple interest is an interest system that does not compound interest.

Compounding interest means that interest is added to the principal before subsequent interests are computed.

But under the simple interest system, interest is based on the principal from one period to the next.

The loan amount = $17,100

Simple interest rate = 9.65%

Loan period = 76 days

Total interest = $17,100 x 9.65% x 76/365 = $343.59

Final amount = $17,443.59 ($17,100 + $343.59)

Learn more about the simple interest at https://brainly.com/question/25793394.

#SPJ1

what is the probability that the sample mean annual insurance cost is greater than $620? show your work.

Answers

The probability of the sample mean annual insurance cost being greater than $620 is very low, that is 0.00317% which indicating that it is unlikely to happen by chance.

Probability is a branch of mathematics that deals with the likelihood of an event happening. It is used in various fields, such as insurance, finance, and science.

To calculate the probability, we need to use the central limit theorem, which states that the distribution of sample means of a population approaches a normal distribution as the sample size increases. We also need to know the mean and standard deviation of the population.

Assuming that the population is normally distributed, we can use the following formula to calculate the probability:

z = (x - μ) / (σ / √(n))

where z is the z-score, x is the sample mean, μ is the population mean, σ is the population standard deviation, and n is the sample size.

In this case, we don't know the population mean and standard deviation, but we can use the sample mean and standard deviation as estimates. Let's say we have a sample of 100 insurance costs with a mean of $600 and a standard deviation of $50.

Now, we can calculate the z-score:

z = (620 - 600) / (50 / √(100)) = 4

The z-score of 4 indicates that the sample mean of $620 is 4 standard deviations away from the mean of $600. We can use a standard normal distribution table or a calculator to find the probability of getting a z-score of 4 or higher. The probability is very small, approximately 0.0000317 or 0.00317%.

To know more about probability here.

https://brainly.com/question/11234923

#SPJ4

The box-and-whisker plot below represents some data set. What percentage of the data values are greater than 24?

Answers

The percentage of the data values are greater than 24 is 75%.

What is a box-and-whisker plot?

A box and whisker plot is a special type of graph that is used to show groups of number data and how they are spread. It shows the median, which is the middle value of the numbers in your data, the lowest number, the highest number and the quartiles, which divides the data into four equal groups.

So as per the given question box-whisker plot represents some data set. There is a number 24 just corresponding to it there is a vertical line which shows that 24 is the first quartile of the data and here 24 is the 75th percentile.

It means that there is 75% values are greater than 24.

Therefore, the percentage of the data values are greater than 24 is 75%.

Learn more about the box-and-whisker plot here:

https://brainly.com/question/11859288.

#SPJ9

Stevens high school has 800 students every Wednesday 3% of the students stay after for chess club how many students attend chess club on Wednesdays

Answers

Answer: To find out how many students attend chess club on Wednesdays, we need to calculate 3% of the 800 students at Steven's high school. To do this, we multiply the number of students by 3% (which is equivalent to 0.03):

800 x 0.03 = 24

So, 24 students attend chess club on Wednesdays.

Step-by-step explanation:

Answer:

Step-by-step explanation:

A cardboard box in the shape of a rectangular prism has the
dimensions shown.
a. Write a polynomial that represents the volume of the box.
b. The volume of the box is 60 cubic inches. What are the
length, width, and height of the box?

Answers

On solving the provided question, we can say that Volume of cuboid - L X B X H=> volume = (x+6)*(x-2)*(x-1) => [tex]V = x^3 + 3x^2 - 16x + 12[/tex]

what is cuboid?

A cuboid is a solid or three-dimensional form in geometry. A cuboid is a convex polyhedron having 8 vertices, 12 sides, and 6 rectangular faces. Another name for a cuboid is a cuboid. A cube is a cuboid with six square faces. Boxes include things like books and bricks. The following are the key variations between cubic and cubic: In contrast to a cube, which has rectangular faces, a cube has six equally sized square faces. Even though the cube and cuboid structures have a similar appearance, they differ in some ways in terms of side length, diagonal, and area.

The dimensions are:

Length =(x + 6), Width = (x - 2) and Height = (x -1)

Volume of cuboid - L X B X H

volume = (x+6)*(x-2)*(x-1)

[tex]V = (x+6)(x^2 - 3x +2)[/tex]

[tex]V = x^3 - 3x^2 + 2x + 6x^2 - 18x + 12[/tex]

[tex]V = x^3 + 3x^2 - 16x + 12[/tex]

To know more about cuboid visit:

https://brainly.com/question/29568631

#SPJ1

1. Find the geometric mean of the
two numbers.
4 and 42.25

Answers

Answer:

13

Step-by-step explanation:

How would you
write the name of a segment differently than the name of a line? What
symbols would you use?

Answers

The primary difference between writing the name of a segment and the name of a line is the use of symbols.

What is symbol?

A symbol is an object, image, or action that stands for or represents something else. Symbols can be used to convey a wide variety of ideas and concepts, from the literal, such as a heart to represent love, to the abstract, such as a peace sign to represent a call for world peace. Symbols are often used to communicate complex ideas quickly and easily.

To denote a segment, a line is usually written with two arrows pointing in opposite directions, such as ↔. To denote a line, the line is usually written with a single arrow pointing in one direction, such as →.

For example, if you were writing the name of a segment called "AB", then you would use the symbol ↔ AB. If you were writing the name of a line called "AB", then you would use the symbol → AB.

To know more about the symbol click-

https://brainly.com/question/30289310

#SPJ1

which of the following is a difference between panel and pooled cross-sectional data? group of answer choices a panel data set consists of data on different cross-sectional units over a given period of time while a pooled data set consists of data on the same cross-sectional units over a given period of time. a panel data set consists of data on the same cross-sectional units over a given period of time while a pooled data set consists of data on different cross-sectional units over a given period of time a panel data consists of data on a single variable measured at a given point in time while a pooled data set consists of data on the same cross-sectional units over a given period of time. a panel data set consists of data on a single variable measured at a given point in time while a pooled data set consists of data on more than one variable at a given point in time.

Answers

From the following, a panel data set consists of data on the same cross-sectional units over a given period of time while a pooled data set consists of data on different cross-sectional units over a given period of time is the difference between panel and pooled cross-sectional data.

Panel data refers to samples of the same cross-sectional units observed at multiple points in time.

For example we will follow the same set of households X, Y and Z, for each time period we collect data i.e. in 1990 and we will also interview the same households in 1995.

Pooled data occur when we have a “time series of cross sections,” but the observations in each cross section do not necessarily refer to the same unit.

For example we will take household income data on households X, Y and Z, in 1990. And then we will take the same income data on households G, F and A in 1995. Although we are interested in the same data, we are taking different samples (using different households) in different time periods.

To know more about panel data

https://brainly.com/question/30657393

#SPJ4

The total mass of a box and some oranges was 25 kg. The total mass of
the same box and some apples was 11 kg. The mass of the oranges was
3 times the mass of the apples.
Find the mass of the oranges.

Answers

In a case whereby the  total mass of a box and some oranges was 25 kg. The total mass of the same box and some apples was 11 kg. The mass of the oranges was 3 times the mass of the apples, the mass of the oranges is 21kg.

How can the  mass of the oranges be determined?

The concept that will be used here is simplificatiopn.

We can set up as:

let a represent the box

let b represent the orange

lect c represent the apple

Then a + b = 25

a+ c = 11 ....................................................(2)

b = 3c.......................................(3)

substract equation 2 from 1

b-c = 11 ....................................(4)

substitute eqn 3 into 4

b-c = 14

3c - c =14

2c= 14

c= 7

from eqn 3

b = 3c

b = 3*7 =21

Then mass of orange = 21 kg

from  eqn 2

a+ c = 11

a= 11-7= 4

mass of empty box = 4kg

Learn more about mass at:

https://brainly.com/question/25959744

#SPJ1

2x-y=9,4x+y=21


answer this equation for a bloody cookie mate

Answers

Answer:

x=5, y=1

Step-by-step explanation:

2x-y=9

2(5)=10

10-1=9

4x+y=21

4(5)=20

20+1=21

Hope this helps! Please give brainliest!

Given f(x)=(1)/(x), explain the how the graph of the nee function g(x)=(1)/(x-3)-5 transforms from the graph of f(x).

Answers

The function f(x) is translated 3 units right and 5 units down then the function f(x) is coincident with the function g(x).

What is a function?

A function is an assertion, conception, or regulation that establishes a partnership between two variables.

The functions f(x) and g(x) are given below.

f(x) = 1 / x

g(x) = 1 / (x - 3) - 5

Translate the function 3 units right, then replace x with (x - 3). And translate the function 5 units down, then replace f(x) with (g(x) + 5). Then we have

g(x) + 5 = 1 / (x - 3)

g(x) = 1 / (x - 3) - 5

The function f(x) is translated 3 units right and 5 units down then the function f(x) is coincident with the function g(x).

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ1

*FIND THE SLOPE OF THE LINE THROUGH EACH PAIR OF POINTS*

d. (-4, 3) and (-6, -8)

e. (-7, -1) and (-7, 2)

f. (9, 4) and (-6, 4)

slope = y2 - y1
______
x2 - x1

Answers

[tex](\stackrel{x_1}{-4}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{-6}~,~\stackrel{y_2}{-8}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-8}-\stackrel{y1}{3}}}{\underset{\textit{\large run}} {\underset{x_2}{-6}-\underset{x_1}{(-4)}}} \implies \cfrac{-11}{-6 +4} \implies \cfrac{ -11 }{ -2 } \implies \cfrac{11 }{ 2 } \\\\[-0.35em] ~\dotfill[/tex]

[tex](\stackrel{x_1}{-7}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{-7}~,~\stackrel{y_2}{2}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{2}-\stackrel{y1}{(-1)}}}{\underset{\textit{\large run}} {\underset{x_2}{-7}-\underset{x_1}{(-7)}}} \implies \cfrac{2 +1}{-7 +7} \implies \cfrac{ 3 }{ 0 } \implies \stackrel{\textit{vertical line}}{{\Large \begin{array}{llll} unde fined \end{array}}} \\\\[-0.35em] ~\dotfill[/tex]

[tex](\stackrel{x_1}{9}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{-6}~,~\stackrel{y_2}{4}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{4}-\stackrel{y1}{4}}}{\underset{\textit{\large run}} {\underset{x_2}{-6}-\underset{x_1}{9}}} \implies \cfrac{ 0 }{ -15 } \implies \stackrel{\textit{horizontal line}}{\text{\LARGE 0}}[/tex]

keep in mind that whenever you notice the x-coordinates are the same, it's a vertical line, and whenever the y-coordinates are the same, is a horizontal line.

40° rcm Find the value of z. zem This sector of a circle has radius r and perimeter 20 cm. find the value of z ​

Answers

The value of length of z is 5.06 cm.

What is the value of length z?

The value of length of z is calculated by determining the radius of the sector as shown below;

The formula for the perimeter of a sector is given as;

P = 2r  +  (θ/360) × 2πr

where;

r is the radius of the sector

20 cm = 2r  + (40/360) x 2πr

20 = 2r  +  0.7r

20 = 2.7r

r = 20/2.7

r = 7.4 cm

A perpendicular bisector of 40⁰ will cut line z into two equal parts, the length of half of z is calculated as;

sin (20) = (z/2) / r

r x sin (20) = (z/2)

2r x sin (20) = z

2 x 7.4 cm x sin(20) = z

5.06 cm = z

Learn more about length z here: https://brainly.com/question/25800303

#SPJ1

m varies directly as n, and m=14 when n=7

a) write an equation that relates m and n

b) find m when n = 16

c) find n when m = 30

Answers

Answer:

see explanation

Step-by-step explanation:

(a)

given m varies directly as n then the equation relating them is

m = kn ← k is the constant of variation

to find k use the condition m = 14 when n = 7

14 = 7k ( divide both sides by 7 )

2 = k

m = 2n ← equation of variation

(b)

when n = 16 , then

m = 2 × 16 = 32

(c)

when m = 30 , then

30 = 2n ( divide both sides by 2 )

15 = n

7. A polygon has vertices at F(-5, 2), G(-3, 2), H(-3, 4), J(1, 4), K(1, 1), L(4, 1), M(4, -2), N(6, -2), P(6, -3), and Q(-5, -3). Graph the figure on the coordinate plane. Then find the area and perimeter of the figure.​

Answers

The area of the figure is 52 square units

The perimeter of the figure is 36 units

The graph is attached

How to the perimeter

The perimeter of the figure is found by summing the length of the sides

F(-5, 2) - G(-3, 2) = 2 units

G(-3, 2) - H(-3, 4) = 2 units

H(-3, 4) - J(1, 4) = 4 units

J(1, 4) - K(1, 1) = 2 units

K(1, 1) - L(4, 1) = 3 units

L(4, 1) - M(4, -2) = 3 units

M(4, -2) - N(6, -2) = 2 units

N(6, -2) - P(6, -3) = 1 units

P(6, -3) - Q(-5, -3) = 11 units

Q(-5, -3) - F(-5, 2) = 5 units

The perimeter = 2 + 2 + 4 + 2 + 3 + 3 + 2 + 1 + 11 + 5 = 36 units

Learn more about perimeter of irregular figure at:

https://brainly.com/question/29301703

#SPJ1

3. a computer password consists of two lowercase letters followed by a capital letter and four digits. find the total number of possible passwords.

Answers

The total number of possible passwords is 17,576,000.

There are several steps involved in calculating the total number of possible passwords.

Step 1: Determine the number of possible choices for the first lowercase letter. Since there are 26 letters in the alphabet, and the password consists of lowercase letters, there are 26 choices for the first letter.

Step 2: Determine the number of possible choices for the second lowercase letter. Since there are 26 letters in the alphabet and repetition is allowed, there are 26 choices for the second letter.

Step 3: Determine the number of possible choices for the capital letter. Since the password requires a capital letter, there are 26 choices for this position.

Step 4: Determine the number of possible choices for the first digit. Since there are 10 digits (0-9), there are 10 choices for the first digit.

Step 5: Determine the number of possible choices for the second digit. Since there are 10 digits (0-9) and repetition is allowed, there are 10 choices for the second digit.

Step 6: Determine the number of possible choices for the third digit. Since there are 10 digits (0-9) and repetition is allowed, there are 10 choices for the third digit.

Step 7: Determine the number of possible choices for the fourth digit. Since there are 10 digits (0-9) and repetition is allowed, there are 10 choices for the fourth digit.

Step 8: Multiply the number of choices for each position together to get the total number of possible passwords.

Using the multiplication rule of counting, we get:

Total number of possible passwords = (Number of choices for the first lowercase letter) x (Number of choices for the second lowercase letter) x (Number of choices for the capital letter) x (Number of choices for the first digit) x (Number of choices for the second digit) x (Number of choices for the third digit) x (Number of choices for the fourth digit)

Total number of possible passwords = 26 x 26 x 26 x 10 x 10 x 10 x 10

Total number of possible passwords = 17,576,000

For more such Questions on Permutation & Combination

https://brainly.com/question/28065038

#SPJ4

Use a graphing calculator to find an equation of the line of best fit for the data. Round the slope to the nearest tenth and the y
-intercept to the nearest integer.

Answers

For the given table -

The equation for line of best fit is Y = -1.000 · X + 11.25.

The correlation coefficient is -0.443533.

x and y have negative and strong correlation.

What is correlation coefficient?

A statistical concept known as the correlation coefficient aids in establishing a relationship between expected and actual values gained through statistical experimentation. The estimated correlation coefficient's value explains how well the expected and actual values match.

The table of data is given.

The formula for equation of the line of best fit is -

Y = b·X + a

On adding the values in a graphing calculator the equation is -

Y = -1.000 · X + 11.25

Here, the slope is -1 and y-intercept is 11.25.

The formula for correlation coefficient is -

r = [n(∑xy) - (∑x)(∑y)] / [n∑x² - (∑x²)][n∑y² - (∑y²)]

n = Number of values or elements

∑x = Sum of 1st values list

∑y = Sum of 2nd values list

∑xy = Sum of the product of 1st and 2nd values

∑x² = Sum of squares of 1st values

∑y² = Sum of squares of 2nd values

For the given table the values are -

n = 8, ∑x = 68, ∑y = 22, ∑xy = 145, ∑x² = 620, ∑y² = 274

Plug in all the values in the equation -

r = [8(145) - (68)(22)] / [8(620) - (620)][8(274) - (274)]

r = -0.443533

When the values of two variables grow while one variable's values fall. The correlation coefficient would be negative in that situation.

The weak and adverse association is indicated by the coefficient's negative value. And if "r" keeps moving in the direction of -1, the relationship is moving in the negative direction.

Therefore, the equation is Y = -1.000 · X + 11.25 and r value is -0.443533.

To learn more about correlation coefficient from the given link

https://brainly.com/question/27842223

#SPJ1

Which ordered pair is the solution to the equation 2x + 3y = x + 5y
a.) (1, 3)
b.) (4,2)

Answers

Answer:

B

Step-by-step explanation:

We start by trying out option A

2(1) + 3(3) = 9

1 + 5(3) = 15

9 and 15 are not equal to one another.

This means it has to be the other option, B.

Represent and Connect Lennon has 3,330 toothpicks. He
wants to use them all to make a floor mat with 18 equal
rows. Use the bar diagram to write a division equation.
Then solve the equation to find how many toothpicks
Lennon should use in each row.

Answers

The toothpicks lennon should use in each row is 185.

What is Algebra?

Algebra is the study of abstract symbols, and logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction also. This approach is used to answer the given problem correctly and completely.

We are given that;

Total number of toothpicks= 3330

Number of rows= 18

Now,

To find the number of toothpicks in each row

=3330/18

=1665/9

=185

Therefore, by algebra the answer will be 185.

To know more about the Algebra visit;

brainly.com/question/953809

#SPJ9

A second hand car dealer bought a car for R85 000. The costs related to the transaction amount R250. He sells the car for R93 000. Calculate the profit he made on the deal

Answers

The profit made on the transaction by the dealer was Rs. 7,750.

To calculate the profit made by the second hand car dealer, you can subtract the cost of buying the car and the transaction costs from the selling price.

Profit = Selling Price - Cost of Car - Transaction Costs

Profit = 93,000 - 85,000 - 250

Profit = 7,750

So the dealer made a profit of Rs. 7,750 on the transaction.

Profit and Loss (P&L) is a statement that summarizes a company's revenues and expenses over a specific period of time, typically a quarter or a year. The purpose of a P&L statement is to show a company's ability to generate revenue, as well as the cost of doing so. The difference between a company's total revenue and total expenses is referred to as net profit or net loss

Learn more about profit and loss here brainly.com/question/13934673

#SPJ4

Use proportions to determine 23% of what number is 81.3. Round to the nearest hundredth.

Answers

18.7
23% of 81.3 is 18.699 rounded to the nearest hundredth is 18.7

PLEASE HELP IS DUE TOMORROW:The average American throws away 2.5 pounds of empty cans a month (mostly during the winter months). At this rate, how many years will it take the average American to throw away a ton of empty cans? (Show work please)

Answers

1 ton = 2000 pounds

2000/2.5 = 800 months

800/12 = ~66.67 years

Answer:

your answer would be 66.6: do the math: 2.5 a month times 12 months in a year=30. 1 ton =2000 pounds. 2000 divided by 2.5 =800. 800 divided by 12=66.6

Step-by-step explanation:

Other Questions
With enough time and in the absence of other evolutionary mechanisms, genetic drift will ________. a) increase the genetic variation in pop b) have no effect on genetic variation of pop c) generate new alleles in pop d) reduce genetic variation in pop What is the meaning of "heavily conditioned"? the total price of the dinner including tax is $37.26.the sales tax rate is 8%. how much did the dinner cost not including sales tax HELP PLSS A 13.75B 75.00C 83.75D 139.28 Enter your answer and show all the steps that you use to solve this problem in the space provided.Solve the proportion. 1650=x156.25 A client asks the nurse how psychotropic medications work. The nurse correctly replies:"These medications decrease the metabolic needs of your brain.""These medications increase the production of healthy nervous tissue.""These medications affect the chemicals used in communication between nerve cells.""These medications regulate the sensory input received from the external environment." ABCD is a square. E,F,G and H are the mid point AB,BC,CD and DA respectively. Such that AE=BF=CG=DH. Prove that EFGH is a square which of the following statements regarding this reaction is true? 1. the hydrocarbon is used in excess. 2. stoichiometry does not matter in this experiment since we are only interested in the rate of the reaction. 3. equimolar quantities of bromine and the hydrocarbon are used. 4. bromine is used in excess. Find the perimeter of the polygon. 14 ft, 15 ft, 7 ft Calculate the surface area and volume of a square pyramid 10cm12cm10cm true or false According to utilitarianism, all people should uphold certain values, such as honesty and other values that society needs to function. In this chapter, the author does not sayOTest anxiety is all in your head.OYou may feel unwell (queasy stomach, light-headedness) if you have test anxiety.Test anxiety is very real.OAlmost everyone gets a little nervous before a major examONone of the above. ? if we have the same initial condition, but the idea air flow is pressurized by a compressor and we measured the exit temperature is 500k, and the system flow rate 1kg/s. if we ignore the kinetic energy and potential energy change, and the system is adiabatic. determine the work need, in kw. April can buy a package of 8 folders for $1. 12. What is the unit price, per folder, in the package?. short note on importance of cell The accounting term for a situation where two or more people act in coordination to circumvent internal controls is:_________ describe three types of multicomputer configurations. what are their comparative advantages and disadvantages? WILL MARK BRAINLY IF SOMEONE CAN GIVE ME THE CORRECT ANSWER PLEASE. Find the equation of the lines given the two points. a) (-8, 3) and (-6, 0)b) (5, 4.5) and (5, -1)2. A rental car costs $18 plus a fixed charge per mile driven. The total charge for 180 miles of use was $80. Write an equation for the cost, C (in dollars), in terms of the miles driven, x.Solve the linear systems.3. 5x -2y = 7x = 2y-54. 4x + v=5v = 2x - 10 Correct each of the following errors by circling the error, describing what is wrong, entering what should be there instead, and entering the correct answer.1. (3x)(-2x)=3(-2)x=6x2. 4a3a=(4+3)a+=7a3. xxx=x+=x4. 32=6+ A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. What is the cars average acceleration