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Lisa [10]
3 years ago
5

The formula v=r2h gives the volume of a cylinder with a radius r and height h. Find the volume of cylinder with radius (x+4) cm

and height 5 cm. Write your answer in standard form.
Mathematics
1 answer:
yawa3891 [41]3 years ago
3 0

Answer:

The answer to your question is: V = 5x² + 40x + 80

Step-by-step explanation:

Formula = V = r²h

r = x + 4

h = 5

Substitution

V = (x + 4 )² 5                      

V = (x² + 8x + 16)5               expand

V= 5x² + 40x + 80                simplify

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Explain how you would round the number 33 and 89 to estimate their sum
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3 years ago
Tammy bought a nightstand that was marked down 60% from an original price of $50. If she paid 10% sales tax, what was the total
AURORKA [14]

Answer: the total cost of the nightstand is $22

Step-by-step explanation:

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60/100 × 50 = 0.6 × 50 = 30

The new selling price would be

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Therefore, the total cost of the nightstand would be

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7 0
3 years ago
Three experts gave opinions on how long a task will take to finish. The estimates were 29, 10, and 12 days (in no particular ord
nirvana33 [79]

Answer:

15

Step-by-step explanation:

PERT estimate is a measuring strategy that is based on a weighted average. It is used in measuring the uncertainty and risk via three estimates to determine an estimated likelihood for a project's cost or period of completion.

The formula is (O + 4M + P) ÷ 6

Where P is the most pessimistic = 29

M is the most likely = 12

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Hence we have (10 + [4*12]+ 29) ÷ 6

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Rounded figure is equal to 15.

Hence the final answer to the question is 15

7 0
3 years ago
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