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2 years ago

5

You roll a six-sided die. What is the probability that it is a 5 or an even number? Write your answer as a decimal rounded to th

e nearest
thousandth

1 answer:

Ronch [10]2 years ago

7 0

Answer:

.667

Step-by-step explanation:

4/6 = 2/3 = .667

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2 years ago

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densk [106]

Answer:

(-3, -6)

explanation:

When reflected across x axis, the x value will be same and y value will become negative.

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2 years ago

Find the surface area of the prism

deff fn [24]

Answer:

161 ft squared

Step-by-step explanation:

8 x 5 x 2 = 80

8 x 7 = 56

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2 years ago

A unit rate is a ratio that compares an amount of one quantity to _______________ unit of another quantity.

masya89 [10]

Answer:

one

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2 years ago

Dr. Ashby is studying the heart rate of adult men. Preliminary data suggests that the standard deviation of heart rates for adul

jok3333 [9.3K]

Answer:

n=42 adult men

Step-by-step explanation:

-The minimum sample size to get a desired margin of error, E is calculated using the formula:

$n\geq( \frac{z\sigma}{E})^2$

-Given that $\sigma=7.5, \ \ E=3\ , \ z_{0.005}=2.58$ , we can substitute to solve for n in the above formula:

$n\geq (\frac{z\sigma}{E})^2\\\\\therefore n=(\frac{z_{\alpha/2}\sigma}{E})^2\\\\=(\frac{2.58\times7.5}{3})^2\\\\=41.6025\approx42$

Hence, the desired minimum sample size, n is 42 adult men.

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3 years ago