Answer:
12
Step-by-step explanation:
x = - 9
f ( x ) = - 3 l x + 5 l
f ( - 9 ) = - 3 l - 9 + 5 l
= - 3 l - 4 l
= - 3 * 4
f ( - 9 ) = 12
We have
The first integral is known and it is 48.787. The second integral is the area of a rectangle:
Answer:
278
Step-by-step explanation:360-82=278
I think that its 50, 50, and 90
The surface area of a sphere is A = 4 π R² .
Sadly, the question doesn't give you 'R', so you have to
back it out of the circumference.
Circumference = π (diameter)
Divide each side by π : Diameter = circumference / π
Radius = 1/2 diameter: Radius = circumference / (2 π)
Area = 4 π R² =
4 π (circumference/2π)² =
4 π (circumference)² / 4 π²
Divide top and bottom by 4π : Area = (Circumference)² / π
Circumference = 37.68 units
Area = (37.68)² square units /π =
<em>451.93 square units</em>