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mr Goodwill [35]
3 years ago
7

A cone has a volume of 314 cubic millimeters and a height of 12 millimeters. What is its

Mathematics
1 answer:
Hoochie [10]3 years ago
7 0

Answer:

5mm

Step-by-step explanation:

using the formula of volume of cone i.e. 1/3 ×πr²h

1/3 × πr²h = 314

or, r²= (314×3)/ (π×h)

or, r² = 25

r= 5 mm

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grigory [225]

Answer:

7/16 of a yard

Step-by-step explanation:

Let's put the boards to the same denominator so it's easier.

Let's go with a denominator of 16

1/4= 4/16

7/8= 14/16

3/16 stays the same.

So, 4/16+3/16+x=14/16

7/16+x=14/16

x=7/16 of a yard, the length of the 3rd board.

6 0
3 years ago
Write this polynomial in standard form- (5a+2)(a+4)
ikadub [295]

Answer:

5a²+22a+8

Step-by-step explanation:

(5a+2)(a+4)

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7 0
3 years ago
Read 2 more answers
Factor 21c+24.<br> Write your answer as a product with a whole number greater than 1.<br> use ()
Lera25 [3.4K]

Answer:

The required answer as a product with a whole number greater than 1 will be:

21c+24=3\left(7c+8\right)

Step-by-step explanation:

Given the expression

21c+24

Determining the factor

21c+24

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  • Rewrite 21 as 3 · 7

so the expression becomes

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Factor out the common term 3

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Therefore, the required answer as a product with a whole number greater than 1 will be:

21c+24=3\left(7c+8\right)

5 0
3 years ago
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adelina 88 [10]

Answer:

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5 0
3 years ago
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If the figure is reflected over the line y=x, which rule is true
saveliy_v [14]

Answer:

These reflected points represent the inverse function

Step-by-step explanation:

This is just one of the rules that are true.

8 0
3 years ago
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