Answer:
99.0 in²
Step-by-step explanation:
The area (A) of the sector of the circle is calculated as
A = area of circle × fraction of circle
= πr² ×
( where r is the radius )
Here r = 9, thus
A = π × 9² × 
= 81π ×
≈ 99.0 in²
Answer:
19.6
Step-by-step explanation:
The ratio of brown paint to white paint is, 5:7 or
so if he bought 14 gallons of white paint we need to figure out:

which we can as it only has one unknown:
5x=14×7
5x=98
x=19.6
So the answer is 19.6
Answer: answer in screenshots down below
Step-by-step explanation:
Answer:
The answer is -2 & 3
Step-by-step explanation:
The given expression is :
2xx+3-5(x-2)
We know that, 

Aleena expands 2xx+3-5(x-2) as 2x²+3-5x-10. She is mistaken because the sign before 10 should be +10 instead of -10. Hence, the correct expanded form is 2x²+3-5x+10. Hence, this is the required solution.