The perimeter of a rectangle is 14 11/12 feet. if the length is 4 3/8 feet what ia the width

10 3/4

Step-by-step explanation:

first we would set up the equation as 14 11/2=2(4 3/8) + 2x

so to simplify it would be 39/2= 70/8 + 2x

then 156/8=70/8+2x

then you just solve 86/8 = 2x

then you get 10 3/4

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

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step-by-step explanation:

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