Simplify. Rewrite the expression in the form y^n

In Born together—Reared apart: the Landmark Minnesota twin study (2012), Nancy Segal discusses the efforts of research psycholog

Radda [10]

Answer:

Check the explanation

Step-by-step explanation:

From the given differences of SAT scores

find the mean and standard deviation of difference.

Kindly check the attached image below to see the step by step explanation to the question above.

7 0

3 years ago

How would u do this? i needz helpz. plz helpz

castortr0y [4]

You have to add them all together and times that by 60%, when you get 13.8 that's the answer and to prove it, subtract 23-13.8 and you get 9.2 and that's 40%

3 0

3 years ago

Simon used 3 pears and 9 apples to make a salad. what was the ratio of the number of pears to the number of apples in the salad?

Levart [38]

The answer is A

3 divided by 3 is 1

9 divided by 3 is 3

5 0

3 years ago

A scatter plot is shown below: A graph shows numbers from 0 to 10 on the x axis at increments of 1 and the numbers 0 to 15 on th

Mrrafil [7]

Answer:

B (0, 14) and (10, 1)

Step-by-step explanation:

Option A: (0, 14) and (10, 14)

Equation of line using two point slope form .

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

$(x_1,y_1)=(0,14)$

$(x_2,y_2)=(10,14)$

Substitute values in formula :

$y-14=\frac{14-14}{`10-0}(x-0)$

$y-14=0(x-0)$

$y=14$

Option B : (0, 14) and (10, 1)

Equation of line using two point slope form .

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

$(x_1,y_1)=(0,14)$

$(x_2,y_2)=(10,1)$

Substitute values in formula :

$y-14=\frac{1-14}{`10-0}(x-0)$

$y-14=\frac{-13}{10}(x-0)$

$y=\frac{-13}{10}x+14$

Option C: (0, 7) and (7, 0)

Equation of line using two point slope form .

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

$(x_1,y_1)=(0,7)$

$(x_2,y_2)=(7,0)$

Substitute values in formula :

$y-7=\frac{0-7}{`7-0}(x-0)$

$y-7=\frac{-7}{7}(x)$

$y= -x+7$

Option D: (0, 7) and (3, 0)

Equation of line using two point slope form .

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

$(x_1,y_1)=(0,7)$

$(x_2,y_2)=(3,0)$

Substitute values in formula :

$y-7=\frac{0-7}{`3-0}(x-0)$

$y-7=\frac{-7}{3}(x)$

$y=\frac{-7}{3}(x)+7$

Now after plotting all the lines of given options on the graph of scatter plot we can see that the blue line $y=\frac{-13}{10}x+14$ of Option B the is the line of best fit for this scatter plot Since it is covering almost all ordered pairs of scatter plot.

Hence two ordered pairs can be joined to best draw the line of best fit for this scatter plot are (0, 14) and (10, 1)

Option B is correct.

5 0

3 years ago

Read 2 more answers

The length of the famed fred's fence is 5 more than twice it's width if the perimeter of the fence is 510 feet find the dimensio

Sveta_85 [38]

Answer:

83 1/3 ft wide
171 2/3 ft long

Step-by-step explanation:

Let w represent the width of the area. Then 2w+5 represents the length. The perimeter is twice the sum of length and width:

P = 2(L+W)

510 = 2(2w+5 +w) . . substitute given values

255 = 3w +5 . . . . . . divide by 2

250 = 3w . . . . . . . . . subtract 5

83 1/3 = w . . . . . . . . .divide by 3; the width of the area

2w+5 = 171 2/3 . . . . the length of the area

The fenced area is 83 1/3 ft wide and 171 2/3 ft long.

4 0

4 years ago