09 08 07 06 10 1
wrryetryytrwertry (It was too short)
Answer:
12 = x
Step-by-step explanation:
r = 45 m.
pi r^2 = 6358.5
r^2 = 6358.5 / pi
r = √(6358.5 / pi)
= 44.989 m
f(x, y) = 4x + 7y - 6
substitute x=5 and y=-5
f(5,-5) = 4(5) + 7(-5) - 6
f(5,-5) =20-35-6
= -15-6
=-21
