Answer:
A = 981.3 ft^2
Step-by-step explanation:
Here we're calculating the area of a semicircle of radius 25 ft.
The area of a circle is A = (pi)(r)^2, and that of a semicircle of the same radius is A = (1/2)(pi)(r)^2.
Here pi = 3.14 and r = 25 ft, and so the area/space in question is
A = (1/2)(3.14)(25)^2
A = 981.3 ft^2
3y+2=9x-4
3y=9x-4-2
3y=9x-6
y=3x-2
y=3x-2
Remember we can do anything to an equation as long as we do it to both sides
and adding a negative of something cancels it so
-2d+3=17+5d
isoltate unknown
add 2d to oth sides
3=17+7d
subtract 17 from both sides
-14=7d
divide 7
-2=d