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Norma-Jean [14]
3 years ago
15

Help me please seriously my work is due at 2pm

Mathematics
1 answer:
ElenaW [278]3 years ago
3 0

Answer:

Step-by-step explanation:

area of a circle= (pi) x r^2

a= 3.14 x 7^2

a=3.14 x 49

a=  153.86 mi^2

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Misha Larkins [42]

Answer:

661.4\ rpm

Step-by-step explanation:

we know that

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step 1

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Remember that    

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using proportion find the number of revolutions  

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