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erastovalidia [21]

2 years ago

14

The average height of women between ages 30-39 is 163.2 cm with a standard deviation of 9.3 cm. Find the probability that a woma

n in this age group is over 160 cm tall if it is known that the distribution is approximately normal. Group of answer choices

1 answer:

Darina [25.2K]2 years ago

6 0

Answer:

D) 0.6346

Step-by-step explanation:

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yuradex [85]

-3 x + 1 > y
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3 0

2 years ago

Simplify (square root 2)( square root of 2^3)

steposvetlana [31]

Answer:

$\large\boxed{(\sqrt2)(\sqrt{2^3})=4}$

Step-by-step explanation:

$(\sqrt2)(\sqrt{2^3})\qquad\text{use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\=\sqrt{2\cdot2^3}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=\sqrt{2^{1+3}}=\sqrt{2^4}\\\\(1)=\sqrt{2^{2\cdot2}}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt{(2^2)^2}\qquad\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=2^2=4\\\\(2)=\sqrt{2\cdot2\cdot2\cdot2}=\sqrt{16}=6\ \text{because}\ 4^2=16$

8 0

2 years ago

4 times the measure of the complement of an angle is equal to 2/3 the measure of the original angles supplement. what is the mea

Irina-Kira [14]

Let angle be x
4 times complement = 4(90 - x)
2/3 times its supplement = 2/3(180 - x)

4(90 - x) = 2/3 (180 - x)
360 - 4x = 120 - 2/3 x
240 = 3 1/3 x
x = 240 / 10/3 = 240 * 3/10 = 72 degrees Answer

4 0

2 years ago

How me solve this please

marissa [1.9K]

Answer:

A

Step-by-step explanation:

100/25 = 4

but we have 5 students absent so 25-5=20

100/20 = 5

so A

5 0

1 year ago

Which of the following is a system of two linear equations in two variables?

Kitty [74]

Answer:

A

Step-by-step explanation:

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2 years ago