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Darya [45]
3 years ago
7

PLEASE HELP ASAP PLZZ I WILL GIVE BRAINLIEST In order to increase the circumference of a circle from 12pi cm to 18pi cm, by how

much must the diameter increase?​
Mathematics
2 answers:
klasskru [66]3 years ago
5 0

Answer:

<u>Diameter of first circle</u> = 2πr/π = d

  • 12π/π
  • 12cm.

<u>Diameter of second circle</u> = 2πr/π = d

  • 18π/π
  • 18cm.

<u>Diameter increases</u> = 18cm - 12cm

  • 6cm.

pshichka [43]3 years ago
3 0

Answer:

This is because the diameter of the smaller circle is 12pi/pi which is 12, and the diameter of the bigger one is 18pi/pi which is 18. 12 + 6 = 18, so the diameter increases by 6.

Step-by-step explanation:

brinliest pls

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Plz only answer question if you are sure... will give brainliest+5 stars+thanks for a good explanation
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Find the value of n.

(-y + 5.3) + (7.2y - 9) = 6.2y + n

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Solve for the value of n.

-y + 5.3 + 7.2y - 9 - 6.2y = n

group like terms

-y + 7.2y - 6.2y + 5.3 - 9 = n

0 + (-3.7) = n

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(-y + 5.3) + (7.2y - 9) = 6.2y + (-3.7)

-y + 5.3 + 7.2y - 9 = 6.2y - 3.7

Group like terms

-y + 7.2y + 5.3 - 9 = 6.2y - 3.7

6.2y - 3.7 = 6.2y - 3.7

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3 years ago
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Garrett is 64 inches how many centimeters tall is he round your answer to the nearest tenth of a centimeter. 1 in.=2.54cm
Marysya12 [62]
To answer this we just need to convert by multiplying. Lets do it:-

1 in = 2.54 cm

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Answer:

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Step-by-step explanation:

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mamaluj [8]

Answer:

Step-by-step explanation:

V= ?\\r = 2\\h = 5\\\pi = 3.14\\\\V = \frac{1}{3} \pi*r^{2} *h\\\\V = \frac{1}{3} *3.14*2^{2} *5\\\\V= \frac{1}{3} *12.56*5\\\\V=  \frac{1}{3}* 62.8\\\\V = 20.93333333\\\\\\V = 20.93

In terms of pi

V= ?\\r = 2\\h = 5\\V = \frac{1}{3} \pi*r^{2} *h\\\\V= \frac{1}{3} *\pi*2^{2} *5\\\\V = \frac{1}{3} \pi*20\\V=  6.67\pi\\

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