Which situations can be represented by the proportion 1/2 = 1/4? Check all that apply. If 8 people can wash a car in •1/4 hour, then 4 people can wash the same car in 1/2 hour.

•If 8 people can eat 1/2 of a watermelon, then 4 people can eat 1/4 of the watermelon.

•If 1/2 pound of steak costs $8, then 1/4 pound of steak costs $4.

•If 1/2 a pot holds 4 fluid Ounces of water, then 1/4 of the pot holds 8 fluid ounces.

5104.38 inches

step-by-step explanation:

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the answer you are looking for is a..

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x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15