One jug of powdered plant food treats an area of 135 square feet of flowers. How many jugs would be needed to treat an area of 165 square yards? One jug of powdered plant food treats an area of 135 square feet of flowers. How many jugs would be needed to treat an area of 165 square yards?

the 4th choice is the correct one

step-by-step explanation:

536

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

positive

step-by-step explanation:

the quadrant is facing upwards