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Bond [772]
3 years ago
11

ACT scores have a mean of 21.5 and 26 percent of the scores are above 24. The scores have a distribution that is approximately n

ormal. Find the
standard deviation. Round your answer to the nearest tenth, if necessary.
Mathematics
1 answer:
lutik1710 [3]3 years ago
7 0

Answer:

5

Step-by-step explanation:

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Find the equation of a line that passes through the points (-2,-3) and (4,1)
TiliK225 [7]

The equation of the line from give points is y = 2/3x - 5/3.

According to the statement

We have given that the two points which are (-2,-3) and (4,1)

And we have to find the equation of a line that passes through the given points.

So,For this purpose,

First, we need to determine the slope of the line. The slope can be found by using the formula:

m = \frac{(y_2) -(y_1)}{(x_2) -(x_1)}

Where

m is the slope and

Substituting the values from the points in the problem gives:

m = 1 + 3 /4 + 2

m = 4/6

m = 2/3.

And then

Now, we can use the point-slope formula to find an equation for the line. The point-slope formula states:

y - (y_1) = m(x -x_1)

Put the values in it then

y - (-3) = 2/3 (x-(-2))

y +3 = 2/3 (x +2)

3y + 9 = 2x + 4

3y - 2x = 4 -9

3y -2x = -5

3y = 2x - 5

y = 2/3x - 5/3.

So, The equation of the line from give points is y = 2/3x - 5/3.

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4 0
1 year ago
1. Evaluate.<br> 7b, for b= 5
MrRissso [65]

Answer:

35

Step-by-step explanation:

Since we know that 7 b is the equation and 5 is the value of b we can substitute b in 7 b.

b = 5

7 b = 7 × 5 = 35

4 0
3 years ago
A fox leaves its den and travels 725 yards northeast, then 950 yards west. How far, in yards is the fox from its den
Alenkinab [10]

Answer:

1,675

Step-by-step explanation:

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7 0
2 years ago
Rewrite the expression as a single exponent
kifflom [539]

Answer:

9^7

Step-by-step explanation:

7 0
2 years ago
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A video game randomly generates in-game items for players. Elizabeth records the items she receives. Based on the items Elisabet
Ilya [14]

Answer:

I have no idea what you think it is

7 0
2 years ago
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