Dr. Harris is building a sunflower garden in the shape of a semicircle. He wants to cover the entire area with mulch and line the perimeter of the ENTIRE garden with fencing. Each bag of mulch covers 10 square feet and costs $2.00 each. The fencing comes in 5 foot sections and costs $2.50 per section. If the garden has a diameter of 25 feet, what will the total cost be to mulch and fence the entire garden?

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

i believe it's a.

i'm not sure on this one, most likely correct.

no

step-by-step explanation:

answer