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Mekhanik [1.2K]
3 years ago
7

I don't how how to do this someone please help!​

Mathematics
1 answer:
Nutka1998 [239]3 years ago
3 0

Answer:

Answer to question 8 is : Area =1017.88 and Circumference =113.1

Answer to question 9 is: Area =490.87 and Circumference =78.54

Step-by-step explanation:

8. i just did  πr2for area and for circumference i did 2πr which is just the equation to find each

9.i found that half of the diameter is 12.5 so i did πr2 to find the Area i filled in the radius and pai and 2πr for circumference filled in the pai and radius

oh also round it if u want

plz give me brainliest and rate it that u and goodluck

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The club must have 6 juniors and 8 seniors

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Now, we know that the possible combinations of N objects into a group of K is equal to:

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For the juniors we have N = 13 and K = 6

Cj = \frac{13!}{7!*6!} = \frac{13*12*11*10*9*8}{6*5*4*3*2*1} = 1716

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Cs = \frac{16!}{8!8!}  = \frac{16*15*14*13*12*11*10*9}{8*7*6*5*4*3*2*1} = 12870

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C = Cj*Cs = 1,716*12,870 = 22,084,920

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