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3 years ago

Why did the Mountain Men era come to an end?

Mathematics

1 answer:

IceJOKER [234]3 years ago

3 0

I think the answer is D. The U.S. passed laws protecting the beaver.

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Please help, I am bad at Trig

KatRina [158]

Answer:

the correct answer is A, thats when cos of ttheta is

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2 years ago

Which amount is the greatest

den301095 [7]

10 quarts is the greatest about becuase it is equal to 40 cups.

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3 years ago

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15/3 = ?/1. what's the missing unit rate

tamaranim1 [39]

The unit rate is 5/1

15/3=5
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3 years ago

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Suppose the weights of the Boxers at this club are Normally distributed with a mean of 166 pounds and a standard deviation of 5.

lesya [120]

Answer:

0.1994 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 166 pounds

Standard Deviation, σ = 5.3 pounds

Sample size, n = 20

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

Formula:

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

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{5.3}{\sqrt{20}} = 1.1851$

P(sample of 20 boxers is more than 167 pounds)

$P( x > 167) = P( z > \displaystyle\frac{167 - 166}{1.1851}) = P(z > 0.8438)$

$= 1 - P(z \leq 0.8438)$

Calculation the value from standard normal z table, we have,

$P(x > 167) = 1 - 0.8006= 0.1994 = 19.94\%$

0.1994 is the probability that the mean weight of a random sample of 20 boxers is more than 167 pounds

3 0

3 years ago

Solve the equation -7 = y for x.

Harlamova29_29 [7]

Answer:

x = 4y+28

Step-by-step explanation:

x/4 -7 = y

Solve for x

Add 7 to each side

x/4 -7+7 = y+7

x/4 = (y+7)

Multiply each side by 4

x/4*4 = 4(y+7)

x = 4y+28

5 0

3 years ago

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