Apound of fertilizer covers 37 square feet of lawn. vivian's lawn measure 9110.1 square feet. how much fertilizer, to the nearest tenth of a pound, does she need to buy? (round to the nearest tenth)

To solve this problem you must apply the proccedure shown below:

1. You have the following information given in the problem above:

- A pound of fertilizer covers 37 square feet of lawn.

- Vivian has 9110.1 square feet of lawn.

2. Therefore, to calculate the pounds of fertilizer needed, you must multiply  the area of lawn that she has by one pound and divide this by the area convered by a pound:

Then, the answer is: 246.2 pounds.

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