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tiny-mole [99]
3 years ago
14

Find the volume of a right circular cone that has a height of 3.9 ft and a base with a radius of 14.7 ft. Round your answer to t

he nearest tenth of a cubic foot.
Mathematics
1 answer:
erma4kov [3.2K]3 years ago
3 0

Answer:

Volume of the cone = 882.08feet^2

Step-by-step explanation:

Volume of a right circular cone:

                =\pi *r^2*\frac{h}{3}

For,  h=3.9 feet

        r= 14.7 feet

As, \pi =\frac{22}{7}=3.14

 Volume :

                  =3.14*(14.7*14.7)*\frac{3.9}{3} \\\\=3.14*216.09*1.3\\\\=3.14*280.92\\\\=882.08feet^2

Volume of the cone is 882.08feet^2

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Hatshy [7]

Answer:

Line that passes through the points (-6,5) and (-2,7) is,

y=x/2+8, slope is 1/2

line that passes through the points (4,2) and (6,6) is,

y=2x-6, slope is 2

so, there is no relationship between those two lines,

intersection point is (28/3,38/3)

7 0
3 years ago
PLEASE HELP 20 POINTS<br> solve the system of equations y=-5x-7 and -4x-3y=-1 by substitution.
Ainat [17]

Answer:

Solution: x = -2; y = 3 or (-2, 3)

Step-by-step explanation:

<u>Equation 1:</u>  y = -5x - 7  

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Substitute the value of y in Equation 1 into the Equation 2:

-4x - 3(-5x - 7)  = -1

-4x +15x + 21 = -1

Combine like terms:

11x + 21 =  - 1

Subtract 21 from both sides:

11x + 21 - 21 =  - 1 - 21

11x = -22

Divide both sides by 11 to solve for x:

11x/11 = -22/11

x = -2

Now that we have the value for x, substitute x = 2 into Equation 2 to solve for y:

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x = -2; y = 3 or (-2, 3)

Please mark my answers as the Brainliest if you find this helpful :)

7 0
3 years ago
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rusak2 [61]
Increase.

1/4 can be translated to 25%

1/2 can be translated to 50%

25% to 50% is an increase.
4 0
3 years ago
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Answer:

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Step-by-step explanation:

5 2/5 + 2 1/4  Use the common denominator of 20

5 8/20 + 2 5/20  

7  13/20

I know that I will need 14 packages for the 7 pounds.  For the fraction part, 10/20 would be half, so I would need to buy a half pound for that, but I need 13/20 which would be more than a half pound, so I will need to buy 2 more pounds for the fraction part.

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Answer:

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