Find the length of a fence that surrounds a square garden if the length of one side of the garden is given. Are the length of the fence and the length of one side directly proportional quantities? Explain.15 cm

60cm

Step-by-step explanation:

You already know L*4

so multiply 15 cm with 4 and you get 69cm if its not correct is 60cm !!

60cm

Step-by-step explanation:

You already know L*4

so multiply 15 cm with 4 and you get 69cm if its not correct is 60cm !!

Step-by-step explanation:

what "following statement"?

step-by-step explanation:

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