Answer:
706.86
Step-by-step explanation:
15² x π = 706.86
Answer:
-2
Step-by-step explanation:
g(3)= 2(3)-7
g(3)= 6-7
g(3)= -1
f(g(3))= 4(-1)+2
f(g(3))= -4+2
f(g(3))= -2
Answer:
d = 
Step-by-step explanation:
Given that W varies jointly as L and d² then the equation relating them is
W = kLd² ← k is the constant of variation
To find k use the condition W = 140 when d = 4 and L = 54, thus
140 = k × 54 × 4² = 864k ( divide both sides by 864 )
= k , that is
k = 
W =
Ld² ← equation of variation
Multiply both sides by 216
216W = 35Ld² ( divide both sides by 35L )
= d² ( take the square root of both sides )
d = 
Answer:
the answer is definitely d