188.84 rounded to the nearest tenth would be 188.8.
area of circle = pi x r^2
using 3.14 for pi
area = 3.14 x 15^2 = 706.5 square miles
270/360 = 0.75
706.5 * 0.75 = 529.875
rounded to nearest mile = 530 miles
So you got
z²+y²=25² and
17²+x²=z²
x²+6²=y²
nice, so we have z² and y² all in terms of x
17²+x²+x²+6²=25²
2x²+289+36=625
2x²=300
x²=150
x=5√6
if we input back to find y and z
17²+x²=z², 287+150=z², √439 =z
x²+6²=y², 150+36=y², √186=y (not simplifying because no graphing calculator, so just eimplify yourself)
Step-by-step explanation:
x^2=81
x=±9
Answer is -9 and +9
