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andre [41]
3 years ago
5

If the weight of female high school students closely follows the normal distribution with a mean of 125 pounds and a standard de

viation of 5 pounds, what range of weights includes the middle 80% of the girls in high school?
Is it a) 122.3 to 127.1, b) none of these, c) 118.6 to 131.4, d) 120.8 to 129.2, e. 116.8 to 133.2
Mathematics
1 answer:
Bumek [7]3 years ago
6 0
D.) 120.8 to 129.2. hope this helped.
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Vladimir79 [104]

Answer:

Step-by-step explanation:

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7 0
3 years ago
Find the equation of the line.<br><br>Use exact numbers.
Taya2010 [7]

Slope intercept form: y = mx + b

m = slope

b = y-intercept

The line passes through the y-axis at the point (0, -5). So, -5 is the y-intercept.

We can use the points (0, -5) and (5, 0) to solve.

Slope formula: y2-y2/x2-x1

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1

The slope is 1.

Substitute these values into the equation.

y = 1x + (-5)

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3 years ago
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SOVA2 [1]
Reflection across the x-axis followed by a reflection across the y-axis.
8 0
3 years ago
Two numbers have a difference of 12. The smaller of the two numbers is 3 less than double the other. What are the two numbers?
nexus9112 [7]

Answer:

-9,-21

Step-by-step explanation:

let the numbers be x and y and x>y

x-y=12

y=2x-3

x-(2x-3)=12

x-2x+3=12

-x=12-3

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7 0
3 years ago
If the ratio between the radii of two spheres is 3:7, what is the ratio of
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A

Step-by-step explanation:

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