75.3982237 inches squared is the answer, round it to whatever decimal place your asked to.
x= r - h/y subtract r from both sides
x-r = -h/y multiply each side by -y
-y(x-r) = h
-xy +yr = h
Answer:
cos (
) = 
Decimal value: −0.9238795325...
Step-by-step explanation:
Write,
cos
= cos
= −cos 
Now using half angle formula, cos(x) = 2 cos²(
) − 1, we can write cos
= 2
cos²(
) − 1
This means
+ 1 = 2 cos²(
)
2 cos²(
) = 
cos²(
) = 
cos(
) = 
Simplify,
=
= 
Hence,
cos (
) = −cos (
) = 
Answer: I think it’s 0.25
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
(3 - 4)^2 + 2(3 + 4)
(-1)^2 + 2(7)
1 + 14
15