Mathematics, 12.11.2019 09:31, help1572

# Calculate the area of a circle with a radius of 2 cm and a circle with a radius of 4 cm. leave your answers in terms of pi.

when the radius doubles, does the area of the circle double?

a) 4π cm2; 8π cm2; no

b) 4π cm2; 16π cm2; no

c) 4π cm2; 16π cm2; yes

d) 4π cm2; 8π cm2; yes

Answers: 1

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Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b. you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c. you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d. you spend $5 plus $10 per week until you have less than $45.

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Calculate the area of a circle with a radius of 2 cm and a circle with a radius of 4 cm. leave your...

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