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3 years ago

8

The crab nebula is a cloud of gas and dust particles in space that is expanding at a rate of 930 miles per second. What is its r

ate of expansion in miles per hour?

1 answer:

Flauer [41]3 years ago

7 0

There are 3,600 seconds in one hour so if it expands at rate of 930 miles per second then 930 * 3600= 3,348,000 miles per hour

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40. In a statistics class of 30 students, there were 13 men and 17 women. Two of the men and three of the women received an A in

Harrizon [31]

Answer:

a) 56.67% probability that the student is a woman

b) 16.67% probability that the student received an A

c) 63.33% probability that the student is a woman or received an A.

d) 83.33% probability that the student did not receive an A.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

We have that:

30 students

13 men

17 women

2 men that got an A and 11 men that did not get an A.

3 women that got an A and 14 women that did not get an A.

a. Find the probability that the student is a woman.

30 students, of which 17 are women.

$P = \frac{17}{30} = 0.5667$

56.67% probability that the student is a woman

b. Find the probability that the student received an A.

30 students, of which 5 received an A

$P = \frac{5}{30} = 0.1667$

16.67% probability that the student received an A

c. Find the probability that the student is a woman or received an A.

30 students, of which 17 are women and 2 are men who received an A. So

$P = \frac{19}{30} = 0.6333$

63.33% probability that the student is a woman or received an A.

d. Find the probability that the student did not receive an A.

30 students, of which 25 did not receive an A.

$P = \frac{25}{30} = 0.8333$

83.33% probability that the student did not receive an A.

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3 years ago

Find the value of the missing angle (x)

Andrew [12]

You literally put nothing

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3 years ago

judith baked 30 peanut butter cookies and 48 chocolate chip cookies to package in plastic containers for her friends at school s

grin007 [14]

6 packages

The greatest common factor (GCF) of 30 and 48 is 6, so each package will have 5 (30/6 = 5) peanut butter and 8 (48/6 = 8) chocolate chip cookies.

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4 years ago

Need answer please !!!!!!!! A sports company is shipping softballs to its distribution centers. Each softball is in a square box

tangare [24]

You can fit 25 softballs in each box.

Work:

Find Volume. V= Length x Base x Height

2.5 x 2.5 = 6.25

6.25 x 2 = 12.5

12.5 ÷ 0.5 = 25

Hope this helps!

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3 years ago

You are given the system of equations to solve by the elimination method, which is an INCORRECT step that will NOT produce a sys

Dennis_Churaev [7]

Answer:

13x 5y

Step-by-step explanation:

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3 years ago