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3 years ago

Neil tried to rewrite the expression \dfrac{5^{-6}} {5^{-4}

Mathematics

1 answer:

konstantin123 [22]3 years ago

4 0

Answer:

8huvyvtybyvtv6h78j8j9k8n4inubtctm

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The heights of women aged 20 – 29 in the United States are approximately Normal with mean 64.2 inches and standard deviation 2.8

Alenkinab [10]

Answer:

a) 0.64

b) -1.13

Step-by-step explanation:

We are given the following information in the question:

Women:

Mean, μ = 64.2 inches

Standard Deviation, σ = 2.8 inches

We are given that the distribution of heights of women is a bell shaped distribution that is a normal distribution.

Men:

Mean, μ = 69.4 inches

Standard Deviation, σ = 3.0 inches

We are given that the distribution of heights of men is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

5.5 feet = 66 inches

a) z‑score for a woman 5.5 feet tall

$x = 66\\\\\Rightqrrow z = \displaystyle\frac{66 - 64.2}{2.8} = 0.64$

b) z‑score for a man 5.5 feet tall

$x = 66\\\\\Rightqrrow z = \displaystyle\frac{66 - 69.4}{3.0} = -1.13$

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3 years ago

I HAVE 1 HUNDREDS, 9 TENS, 9 ONES, 8 TENTHS AND 1 HUNDRETHS.WHAT NUMBER AM I?

myrzilka [38]

199.81 is the answer

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4 years ago

Find a polynomial function of degree 3 with -2, 3, 5 as zeros

Lorico [155]

So theyre trying to scare you in this question by giving you the zeros to an already existing function. Basically if x = 1, than the reverse function of this is (x-1)
using that, we can say that the zero or "root" "-2" is equal to (x+2)same with 3, we can say (x-3)= x = 3 and with five, (x-5)= x = 5
so, we have those functions, we can multiply them to eachother to work backwards.(x+2)(x-3)(x-5) =(x^2-x-9)(x-5) =x^3 - 6x^2 - 4x + 45
please ask if you have questions

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3 years ago

Is anyone good at history if so could you pleasee help me with my question!!

miss Akunina [59]

Answer:

what is the question bro

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3 years ago

Read 2 more answers

Multiply 3/4 x 16/9 please help me

lianna [129]

So you would do 3/4 * 16/9 = 48/46 or 1 2/46 or 1 1/23