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Alex
3 years ago
14

Solve for X20 Points

Mathematics
1 answer:
lana [24]3 years ago
3 0
Asked and answered elsewhere.
brainly.com/question/10168697
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The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches. Men the same
masha68 [24]

Answer: The z-scores for a woman 6 feet tall is 2.96 and the z-scores for a a man 5'10" tall is 0.25.

Step-by-step explanation:

Let x and y area the random variable that represents the heights of women and men.

Given : The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches.

i.e. \mu_1 = 64   \sigma_1=2.7

Since , z=\dfrac{x-\mu}{\sigma}

Then, z-score corresponds to  a woman 6 feet tall (i.e. x=72 inches).

[∵  1 foot = 12 inches , 6 feet = 6(12)=72 inches]

z=\dfrac{72-64}{2.7}=2.96296296\approx2.96

Men the same age have mean height 69.3 inches with standard deviation 2.8 inches.

i.e. \mu_2 = 69.3   \sigma_2=2.8

Then, z-score corresponds to a man 5'10" tall (i.e. y =70 inches).

[∵  1 foot = 12 inches , 5 feet 10 inches= 5(12)+10=70 inches]

z=\dfrac{70-69.3}{2.8}=0.25

∴ The z-scores for a woman 6 feet tall is 2.96 and the z-scores for a a man 5'10" tall is 0.25.

6 0
3 years ago
Select the solutions to the following inequality: |x| < 7
Rasek [7]
|x| < 7
means x < 7 and x > -7

answer is -7 < x < 7
4 0
3 years ago
the angle of depression from the top ski lift is 57 degrees if the vertical distance from the top and bottom ot the lift is 1200
dedylja [7]

Answer:

1200

Step-by-step explanation:

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7 0
3 years ago
In how many ways can the letters in the word spoon be arranged?
Kisachek [45]
I search and found different answers but the nearest is 24
7 0
2 years ago
PLEASE HELP!!<br><br> Solve the equation. Please show your math work step by step. 5x −14=−34
MrMuchimi

Hey

The Answer is -4x


Heres the Step by Step work


You add 14 to each side because it is negative, so

5x-14=-34

    +14|+14

and you will end up with

5x=-20

Divide 5 on each side, so

5x=-20

/5x | /5x


-20 / 5x =

x=-4

 or

-4x


mark branliest plz

8 0
3 years ago
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