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Ilya [14]
3 years ago
7

A circle has a diameter of 57 in

Mathematics
1 answer:
goldenfox [79]3 years ago
7 0

Answer:

89.49 if is the entire circle and 44.745 if is a semi circle

Step-by-step explanation:

57 / 2 = 28.5  this is the ratio

28.5 * 3.14 = 89.49

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Then, answer Part B. A number cube that has sides numbered 1 through 6 is rolled 180 times. Part A How many times would you expe
Nitella [24]

Using the binomial distribution, it is found that the expected values are given by:

a) 120.

b) 150.

<h3>What is the binomial probability distribution?</h3>

It is the probability of <u>exactly x successes on n repeated trials, with p probability</u> of a success on each trial.

The expected value of the binomial distribution is:

E(X) = np

In this problem, for both items, we consider that the number cube is rolled 180 times, hence n = 180.

Item a:

4 of the 6 possible values are greater than 2, hence p = 4/6 = 2/3.

The expected value is given by:
E(X) = 180 x 2/3 = 120.

Item b:

5 of the 6 values are less than 6, hence p = 5/6.

The expected value is given by:
E(X) = 180 x 5/6 = 150.

More can be learned about the binomial distribution at brainly.com/question/24863377

4 0
2 years ago
180=112+9x+5. Whats the value of X and why?
vovangra [49]

Answer:x=7

Step-by-step explanation:

180=112+9x+5

Collect like terms

180-112-5=9x

63=9x

Divide both sides by 9

63/9=9x/9

7=x

x=7

5 0
3 years ago
You earn three dollars an hour as a waitress after working three hours you earn 12 five and seven dollars in tips how much money
NikAS [45]

Answer:

The waitress earned a total of 33 dollars

Step-by-step explanation:

Step 1: Determine total earnings from wages;

Total earnings from wages=Earnings per hour×number of hours worked

where;

Earnings per hour=3 dollars an hour

Number of hours worked=3 hours

replacing;

Total earnings from wages=(3×3)=9 dollars

Step 2: Determine total earnings from tips

Total earnings from tips=(12+5+7)=24 dollars

Step 3: Calculate total money earned

Total money earned=Total earnings from tips+total earnings from wages

where;

Total earnings from tips=24 dollars

Total earnings from wages=9 dollars

replacing;

Total money earned=(9+24)=33 dollars

The waitress earned a total of 33 dollars

7 0
3 years ago
Choose Yes or No to tell if the fraction 3/5 will make each equation true.
Vinvika [58]
Yes
no
no
yes
i hope it helped.
4 0
3 years ago
Read 2 more answers
A bag of oranges weighs 5 1/4 pounds. How much does 1 1/2 bags weigh?
Andreyy89

Answer:

you simplify the fractions then you cross multiply

Step-by-step explanation:

1/2 * 4/2 you multiply 1 and 4 and you get 4/4 which is equal to 1  

3 0
3 years ago
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