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2 years ago

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800 children a day ride on the roller coaster, but another 200 are turned away because they're not tall enough. What proportion

of the total number of children are turned away?
A) Half are turned away
B) One quarter are turned away
C) One fifth are turned away

2 answers:

seropon [69]2 years ago

8 0

Answer:

B

Step-by-step explanation:

Brums [2.3K]2 years ago

4 0

Answer:

Step-by-step explanation:

C

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A giant scoop, operated by a crane, is in the shape of a hemisphere of radius 24 inches. The scoop is filled with molten steel.

shtirl [24]

Answer:

40 inches

Step-by-step explanation:

Volume, V of hemisphere = 2/3 π r^3

Radius, r = 24 inches ;

V = 2/3 π 24^3

V = 28952.917 in³

Volume of cylinder = π r^2 * h

h = height ; r = Radius = 32 /2 = 16 inches

Volume of hemisphere = volume of cylindrical tank

28952.917 = π (16)^2 * h

28952.917 = 804.24771h

h = 28952.917 / 804.24771

h = 35.9999

h = 40 inches

Molten stell rise is 40 inches

6 0

2 years ago

Suppose that to make the golf team you need to score no more than 74 on average over 5 games. If you scored 77, 71, 77, and 67 i

vivado [14]

No more than 74 on average of 5 games means no more than 370 shots on total. If you add all of the numbers up you will get 292, so he can still shoot 370-292=78 in the last round, which is answer choice B.

5 0

3 years ago

Read 2 more answers

The two-way table shows the estimated number of students who will enroll in three area high schools next year. a 5-column table

mr Goodwill [35]

Answer:

A. 0.2

Step-by-step explanation:

First make the table.

<u>10-grade</u> <u>11-grade</u> <u>12-grade</u> <u>Total</u>

<u>Woodson high school </u> | 110 | 120 | 80 | 310 |

<u>Valley high school </u> | 180 | 150 | 120 | 450 |

<u>Riverside high school </u> | 160 | 140 | 200 | 500 |

<u>Total </u> | 450 | 410 | 400 | 1260 |

Question: In decimal form, to the nearest tenth, what is the probability that a randomly selected riverside high school student is in twelfth grade?

First, find 12-grade and riverside high school number. 200. Take the total lined up with total number, which is 1260, and divide 200 divided by 1260.

200/1260=0.2

The answer is 0.2.

Hope this helps!

If not, I am sorry.

6 0

1 year 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

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

6 0

3 years ago

What are the coordinate of the vertices of A’B’C after each movement

yuradex [85]

Do you have a picture or sum?

7 0

3 years ago