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Lunna [17]
2 years ago
10

Subtract (3x2 + 2x – 9) - (4x2 - 6x + 3) Enter your answer, in standard form in the box.

Mathematics
1 answer:
ss7ja [257]2 years ago
7 0

Answer:

2

Step-by-step explanation:

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A cone has a height of 20 centimeters and a volume of 4,710 cubic centimeters. What is the area of the base of the cone?
olchik [2.2K]

Answer:

706.5 cm^2

Step-by-step explanation:

First we need to find the r to find the area of the base which is the circle so we use the volume to find r

V = 1/3πr^2h now adjust the equation for r

r = √3V/πh

r = √3(4710)/20π

r= 15

now that we have r, the base of cone is a circle so we use the area formula for circle

area  = πr²

area = 3.14 (15)^2

area of base = 706.5 cm^2

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makkiz [27]
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