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Ksenya-84 [330]
3 years ago
15

The volume of a cone is 88 pi cubic feet. Its height is 8 feet. Fatima is finding the radius of the cone. Her work is shown belo

w.
V = one-third pi r squared h. Step 1: 88 pi = one-third pi r squared (8). Step 2: 88 pi = StartFraction 8 Over 3 EndFraction pi r squared. Step 3: StartFraction 8 Over 3 EndFraction (88) = r squared. Step 4: 234.7 = r squared. Step 5: 15.3 = r.

What is Fatima’s error?
In step 4, Fatima did not find the correct value of StartFraction 8 Over 3 EndFraction (88).
In step 2, Fatima should not have multiplied One-third and 8.
In step 3, Fatima did not multiply 88 by the reciprocal of StartFraction 8 Over 3 EndFraction.
In step 1, Fatima did not substitute the correct value for the height in the formula.
Mathematics
2 answers:
Mashutka [201]3 years ago
6 0

Answer: 10.00

Step-by-step explanation:

You had to multiply and divide and see what you get.

ELEN [110]3 years ago
4 0

Answer:

10.00

Step-by-step explanation:

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Answer:

d^2 +2d-8=0

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so for example 4 and 2

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so now factorise:

d^2 +2d-8=0

d^2+4d-2d -8=0

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Step-by-step explanation:

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Vsevolod [243]

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