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frosja888 [35]
3 years ago
14

V=pie*r^2*h solve for r

Mathematics
1 answer:
ankoles [38]3 years ago
8 0

Answer:

r = √(V/πh)

Step-by-step explanation:

V=π*r^2*h solve for r

divide both sides by πh

V/πh = π*r^2*h/πh

Simplify

V/πh = r^2

so r = √(V/πh)

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The ratio of the number of boys to the number of girls in a certain school club is 3 to 4. If there are 5 more girls than boys i
andreev551 [17]

Answer:

so 4 times 5 is 20 girls

your answer is 20

Step-by-step explanation:

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3 0
3 years ago
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HELP ME PLEASE WITH 1,2 AND 3 PLEASE DON'T TAKE LONG TO RESPOND !!​
soldi70 [24.7K]

Answer:

1. -19x

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5. -18x + 2y

Step-by-step explanation:

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second one:

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6 0
3 years ago
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. CDEF is a trapezium
guajiro [1.7K]

9514 1404 393

Answer:

  24 cm²

Step-by-step explanation:

To find the area of the trapezium, we must know the length CD. That means we must know the length BC. Fortunately, the perimeter of ABCF is given, so we have ...

  P = 2(AB +BC)

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Then CD is ...

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The area of the trapezium is given by the formula ...

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The area of trapezium CDEF is 24 cm².

3 0
3 years ago
Unemployment is the ratio of
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Answer:

I think it is A.

Step-by-step explanation:

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5 0
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Nima can mow 18 yards in 6 days. Which strategy can be used to determine how many yards Nima can mow in 20 days?
alekssr [168]
6×3=18 this is the closets to twenty. 
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Nima can mow 60 yards in twenty days.
4 0
3 years ago
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