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3 years ago

10

The circular opening of a tunnel

1 answer:

Andre45 [30]3 years ago

5 0

Answer:

2(21/pi)=d

Step-by-step explanation:

The formula for a circumference is C=2(pi)(r) in this case we know our circumference is 42 meters so 42=2(pi)(r), we must leave our radius by itself so we divide by 2 to get 21=pi(r) we then also divide by pi which will get us 21/pi=r and we know that the diameter is double of the radius so we just double which will then be 2(21/pi)=d

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3 years ago

An advertisement is on a flyer that has a thickness of 8.2 x 10^-5 meters. Each measurement below is the thickness of a stack of

vladimir1956 [14]

Answer:

For 1,000 flyers $8.2\times 10^{-2}$

For $1.8\times 10^{2}$ flyers $1.476\times 10^{-2}$

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The other values:

$6.15\times10^{-2}\ m\\1.8\times 10^{2}\ m\\8.2\times 10^{-8}\ m$

Step-by-step explanation:

Consider the provided information.

One flyer has a thickness of $8.2\times 10^{-5}$ m

For 1,000 flyers the thickness will be:

$8.2\times 10^{-5}\times 1000=8.2\times 10^{-2}$ meters.

For $1.8\times 10^{2}$ flyers the thickness will be:

$8.2\times 10^{-5}\times 1.8\times 10^{2}=14.76\times 10^{-3}=1.476\times 10^{-2}$ meters.

For 75 flyers the thickness will be:

$8.2\times 10^{-5}\times 75=615\times 10^{-5}=6.15\times 10^{-3}$ meters.

The other values are:

$6.15\times10^{-2}\ m\\1.8\times 10^{2}\ m\\8.2\times 10^{-8}\ m$

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3 years ago

8*10^4 is how many times as big as 4*10^-5

NISA [10]

Answer:

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8*10^4 = 80'000

4*10^-5 = 0.00004

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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loris [4]

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3 years ago