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3 years ago

2. Determine the volume of the figure. Round your answer to the nearest tenth of a cubic foot. three feet, ten feet, four feet,

1 answer:

3 0

Volume=Length x Width x Height
It doesn't matter which one you multiply first; you will get the same answer.
The equation is 3 x 10 x 4
3 x 10 = 30
30 x 4 = 120
Make sure it's written as 120 feet^{3} [/tex].

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The high school, middle school, and elementary school are all on the same road. The distance from the high school to the middle

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4 years ago

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The average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $157.00. Assuming a normal distribution, if 70 percent

juin [17]

Answer:

The standard deviation is $26.67.

Step-by-step explanation:

Problems of normally distributed samples are solved using 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 problem, we have that:

$\mu = 157$

Assuming a normal distribution, if 70 percent of the filings cost less than $171.00, what is the standard deviation?

This means that when X = 171, Z has a pvalue of 0.7. So when Z = 0.525.

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

$0.525 = \frac{171 - 157}{\sigma}$

$0.525\sigma = 14$

$\sigma = \frac{14}{0.525}$

$\sigma = 26.67$

The standard deviation is $26.67.

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3 years ago

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3 years ago

What percentage of tickets sold were to seniors?

Kay [80]

<u>Given</u>:

The number of tickets sold to children $=35+87+62=184.$

The number of tickets sold to adults $=56+177+205=438.$

The number of tickets sold to seniors $=32+14+54=100.$

To determine the percentage of tickets sold to seniors we need to determine the total number of tickets sold to each category.

<u>To determine the percentage of tickets sold to seniors:</u>

In order to determine the percentage of tickets sold to the seniors, we divide the tickets sold to seniors by the total number of tickets sold to children, adults, and seniors.

This value is multiplied with 100 to convert it into a percentage.

The number of tickets sold to seniors $=100.$

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The percentage of tickets sold to seniors $= \frac{100}{722} (100) = 0.1385(100)=13.85\%.$

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