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Morgarella [4.7K]
3 years ago
8

Hey(: can somebody please help me with this question please !

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
6 0
The volume of a cone is 1/3 pi r^2 h. So by substitution, V = 1/3 of 80pi which simplifies to V=26.667pi, which when multiplied out, provides the answer V = 83.8 cubic meters.
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Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 11, 7,
lara31 [8.8K]

the sequence is arithmetic because it's incrementing by a constant ratio of -4

4 0
2 years ago
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You are designing a staircase to reach a second floor that is 113" above the ground floor of a building. The owner of the buildi
gtnhenbr [62]

Answer:

Step-by-step explanation:

total height, H = 113 inches

height of each stair case, h = 7.25 inches

Number of stair case, n = total height / height of each stair case

n = 113 / 7.25 = 15.6

7 0
3 years ago
Suppose a study of population 400,000 has been growing at rate of 7% per year if this rate continues find the population of this
inessss [21]

Answer:

680,000

Step-by-step explanation:

Population before growing rate: 400,000

Growing rate: 7%

Duration: 10 years

___

First, you will have to calculate how much does the population increase each year with the said rate, so you will have to multiply the rate by the population to determine that amount.

400,000 x 7/100 = 28,000

So the population increases by 28,000 each year, now you will have to multiply that amount by the amount of years to determine how much the amount of increase.

28,000 x 10 = 280,000

This means that the population has increased by 280,000 in these 10 years. Finally, you will have to add that number to the population amount to get the answer.

400,000 + 280,000 = 680,000

4 0
2 years ago
PLZZZ help with this its pretty simple!
Zolol [24]

Answer:

D

Step-by-step explanation:

hope this helps

7 0
2 years ago
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Andy is buying a new laptop computer. The store is offering a 15% discount on the model he wants. Andy also has a certificate fr
nika2105 [10]

Answer:

$899.15

0.85(1199) - 120

Step-by-step explanation:

To find the purchase total, multiply the price by the percent paid and subtract the certificate.

The store offers a 15% discount. This means you pay 85% of the price. So the discounted price is 0.85(1199) = 1019.15

Subtract the certificate 1019.15 - 120 = 899.15

The composite function is 0.85(1199) - 120.

7 0
2 years ago
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