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4 years ago

9

Four students buy a box of popsicles for 4.29 and a bag of pretzels for 3.97. how much should each person contribute to the tota

l cost?

1 answer:

dezoksy [38]4 years ago

3 0

For the popsicles each contribute 1.08$ and for the pretzels either 1$ each or .99c

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If a = b + 2, then (b - a)⁴ = ?

Hatshy [7]

Use substitution.

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(b - (b + 2)^4

now take the negative sign and distribute it "+"

so b - b is 0, than 0 - (-2) is -2.

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3 years ago

Please help :)<br> .....................

Kay [80]

There are web sites and videos that stand ready to show you how to bisect an angle.

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3 years ago

A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the

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50.mb

Step-by-step explanation:

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4 years ago

The weights of college football players are normally distributed with a mean of 200 pounds and a standard deviation of 50 pounds

Feliz [49]

Answer:

0.3811 = 38.11% probability that he weighs between 170 and 220 pounds.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 200, \sigma = 50$

Find the probability that he weighs between 170 and 220 pounds.

This is the pvalue of Z when X = 220 subtracted by the pvalue of Z when X = 170.

X = 220

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

$Z = \frac{220 - 200}{50}$

$Z = 0.4$

$Z = 0.4$ has a pvalue of 0.6554

X = 170

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

$Z = \frac{170 - 200}{50}$

$Z = -0.6$

$Z = -0.6$ has a pvalue of 0.2743

0.6554 - 0.2743 = 0.3811

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3 years ago

When you add numbers with a common factor of 2, will the answer have a common factor of 2

zhannawk [14.2K]

Answer:

yes

Step-by-step explanation:

adding together even numbers will give an even result

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3 years ago