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Degger [83]
3 years ago
10

I need help on this question

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
8 0

Your answer is the last option, 615.44 ft³.

We know this as the formula for the volume of a cone is [(π × r²) × ]/3, and substituting in our numbers, with 3.14 being π, we get:

[(3.14 × 7²) × 12]/3 = (153.86 × 12)/3 = 1846.32/3 = 615.44

I hope this helps!

yarga [219]3 years ago
8 0

Hey!

The formula for finding volume of a cone is: (π · r² · h) ÷ 3

\pi = 3.14

r = 7 \\ r^{2} = 7 \times 7 = 49

h = 12

First multiply

3.14 \times 49 \times 12 = 1846.32

Divide by 3

1846.32 \div 3 = 615.44\ ft^{3}

Your answer is the last choice

Good luck and hope this helps! :)

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7 0
3 years ago
A golden rectangle has side lengths in the ratio of about 1: 1.618 if the long side of a golden rectangle is 35 cm what is its a
lakkis [162]

Answer:

The answer to your question is 757.1 cm²    

Step-by-step explanation:

Data

Ratio  1: 1.618

long side = 35 cm

Area = ?

Process

1.- Use proportions to solve this problem

       1 : 1.618 :: x : 35

        x = (35 x 1) / 1.618

        x = 35 / 1.618

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Area = 757.1 cm²        

5 0
3 years ago
Marie wants to buy fencing and sod for her new triangular flower bed. One of the legs of the garden is 7 ft longer than the othe
djyliett [7]

let's suppose x is the shortest leg of the triangle

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the surface to be coverd by sod would be x×(x+7)/2 sqft

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2 years ago
Please help (click to veiw photo)
Colt1911 [192]
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Divide 36 by 2/3: 
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Subtract 54 from1/9 to get the final answer: 
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3 years ago
A real estate agent sells a house for 87,000. She gets a commission of 6% on a sale. What is her commission
pogonyaev

her comission is $5,220 from the sale of $87,000

6 0
3 years ago
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