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Irina18 [472]
3 years ago
10

Find the volume of a cylinder with a diameter of 8 inches and a height that is three times the radius. Use 3.14 for pi and round

your answer to the nearest hundredth
Mathematics
1 answer:
diamong [38]3 years ago
7 0
Volume=height times area of base
area of base=pi times r^2


volume=(h)(pi)(r^2)


diameter=2r
diameger=8
8=2r
divide 2
4=r


h=3 times r
h=3r
r=4
h=3(4)
h=12


r=4
h=12
pi=3.14
subsitute
volume=(12)(3.14)(4^2)
volume=(12)(3.14)(16)
volume=602.88 in^3
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L(x,y,z,\lambda)=x+y-z+\lambda(x^2+y^2+z^2-81)

with partial derivatives (set equal to 0)

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Substituting the first three equations into the fourth allows us to solve for \lambda:

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3 years ago
Are these answers correct
professor190 [17]
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3 years ago
15.000 at 9 percent interest
Ksivusya [100]

Answer:

$16.35

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15 x 1.09 = 16.35

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3 years ago
The sum of two numbers is 16. One number is 3 times the other. Find the numbers.
Dimas [21]

Answer:

X = 12

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Step-by-step explanation:

X + Y = 16

X = 3Y

3Y + Y = 16

4Y = 16

Y = 4

X + 4 = 16

X = 12

5 0
3 years ago
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