3 years ago

Please help me with these two questions I hate math

Mathematics

1 answer:

Aleksandr [31]3 years ago

6 0

Answer:

18. b

19. b

Step-by-step explanation:

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A cone has a volume 12 pie cubic inches it’s height 4 inches what is the radius?

insens350 [35]

Answer:

Step-by-step explanation:

The formula of a volume of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have V = 12π in³ and H = 4 in. Substitute:

$12\pi=\dfrac{1}{3}\pi(r^2)(4)\qquad\text{multiply both sides by 3}\\\\36\pi=4\pi r^2\qquad\text{divide both sides by}\ 4\pi\\\\9=r^2\to r=\sqrt9\to r=3$

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Find the value of x.<br> A) 21 <br> B) 27 <br> C) 31 <br> D) 34

Whitepunk [10]

The answer is a, 21. 21x3 is 63. 63 + 1 = 64.

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Mrrafil [7]

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Find the length of DC to the nearest hundredth of an inch.

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3 years ago

Translate six minutes less then bobs time in a algebraic expression

12345 [234]

Answer:

B-6

Step-by-step explanation:

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