2 years ago

The solids are similar. Find the surface area S of the red solid.

Mathematics

1 answer:

Brut [27]2 years ago

5 0

The refresh is a little hard was

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What is the value of f(7)

kkurt [141]

F(7) means f(x) when x = 7. The x is replaced with 7.

So we'll replace every x with 7 to go from x = 7 to 3-x = 3-7 = -4

Put another way
f(x) = 3-x
f(7) = 3-7
f(7) = -4

Answer: -4

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2 years ago

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A batch of 20 semiconductor chips is inspected by choosing a sample of 3 chips. Assume 10 of the chips do not conform to custome

Hatshy [7]

Answer:

A batch of 20 semiconductor chips is inspected by choosing a sample of 3 chips. Assume 10 of the chips do not conform to customer requirements.

a) Number of different samples = 20C3 = $\frac{20!}{3!(17!)}$ =1140

b) 2 good and one bad chip

Number of samples = 10C2 * 10C1 = 45 * 10 =450

c) 2 good 1 bad + 1 good 2 bad + 3 bad

Number of samples = 10C2 * 10C1 + 10C1 * 10C2 + 10C3

= $450+450+120=1020$

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3 years ago

N/12 = 300<br><br><br> n=?? plz help me

stiks02 [169]

N=25 You just divide 300 and 12 to get 25!

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2 years ago

ava picks a number greater than 3 tens 6 ones. the number is less than 52. it has more than 6 ones. what could the. number be?

Svetlanka [38]

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3 years ago

I dont the know the answer to c-d=b for c

Vinvika [58]

C-d=b add to both sides d and will get

c-d+d=b+d

c=b+d

hope helped

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3 years ago