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vlada-n [284]
3 years ago
6

If the radius of a sphere is increased by 5 cm so that the area of the sphere obtained is increased by 400pi square cm. What was

the radius before the increase
Mathematics
1 answer:
Sliva [168]3 years ago
8 0

Answer:

The answer is 314cm²

the formula for the sphere area of a sphere is:

A= 4TT²

A = 4x3.14x5²

first solve for exponents

A = 4x 3.14x25

then multiply

A = 314cm²

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From Andys house to Billys hometown you can travel by 3 roads. And to get from Billys hometown to Willies's house you can travel
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Andy to get to Willie's house = 15 ways

Andy to get to Willie's house = 45 ways

<h3>How to determine the ways</h3>

From the information given, we have that from

Andy's house to Billy's  hometown = 3 roads

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To travel from Andy's house to Willies house, we should multiply the number of ways

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For Andy to get to Willie's house, we have;

= 3 × 15

= 45 ways

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What is the value of B?<br> B
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Given rectangles LMNO and PQRS, which statement explains a way to determine if the two figures are similar?
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Since all angles in rectangle are always right angles, then options A and C are false (in terms of your question).

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