Answer:
6h^2 -4h -2
Step-by-step explanation:
(h^2 +4h -4) +(5h^2 -8h +2)
= h^2(1 +5) +h(4 -8) +(-4 +2) . . . . group like terms
= 6h^2 -4h -2
area of circle : πr²
area of sector : x/360 x πr²
firstly, you have to find. the area of a circle
π(6)² = 36π
then, find the area of the of the sector (not in the shape)
90°/360° x π(6)² = 12π
[90° is given)]
next, you just minus the total and the area of the sector.
36(3.14) - 12(3.14) = 75.36 units
9
If x/2 = 4.5 then 4.5×2 will get you your answer, 9
Given:
Oven's temperature rose 3 degrees in
of a minute.
To find:
How much will the oven heat up in 1 minute at that rate?
Solution:
According to the question,
Oven's temperature rose in
of a minute 
Oven's temperature rose in 1 minute 

Therefore, the oven's will heat up 18 degrees in 1 minute.
Either way you go 180 degrees clockwise or counter clockwise it will land in the same spot