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3 years ago

This test will not impact your grade.

Mathematics

1 answer:

ycow [4]3 years ago

5 0

Answer:

im pretty sure the distance is across the y and x axis

Step-by-step explanation:

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If the government purchases multiplier is 4 and a change in government spending leads to a $500 million decrease in aggregate de

Artemon [7]

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1 year ago

8x-10≤30

Phoenix [80]

Answer:

x $\leq$ 5

Step-by-step explanation:

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3 years ago

The graph below shows the velocity f(t) of a runner during a certain time interval

Levart [38]

The last answer...
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3 years ago

Read 2 more answers

Find the upper 20%of the weight?

meriva

Answer:

The upper 20% of the weighs are weights of at least X, which is $X = 0.84\sigma + \mu$ , in which $\sigma$ is the standard deviation of all weights and $\mu$ is the mean.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Upper 20% of weights:

The upper 20% of the weighs are weighs of at least X, which is found when Z has a p-value of 0.8. So X when Z = 0.84. Then

$Z = \frac{X - \mu}{\sigma}$

$0.84 = \frac{X - \mu}{\sigma}$

$X = 0.84\sigma + \mu$

The upper 20% of the weighs are weights of at least X, which is $X = 0.84\sigma + \mu$ , in which $\sigma$ is the standard deviation of all weights and $\mu$ is the mean.

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3 years ago

Translate the word phrase into a variable expression.

mixas84 [53]

Quotient means divide.....increased means add

n/4 + 5 <===

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3 years ago