(2-a)^2 + 3(2-a)
A^2 -2a + 4 + 6 -3a
A^2 -5a +10
7.71 feet is your answer.
Answer:
Step-by-step explanation:
16 < 5x-6 < 29
add 6
22 < 5x < 35
divide by 5
4.4 < x < 7
2(x - 4) + 7(x + 2)
mutiply the first bracket by 2
(2)(x)=2x
(2)(-4)= -8
mutiply the second bracket by 7
(7)(x)=7x
(7)(2)= 14x
2x-8+7x+14
2x+7x-8+14 ( combine like terms)
Answer:
9x+6 or 6+9x
Answer:
C
Step-by-step explanation:
The central angle is equal to the arc that subtends it, that is 54°
area of sector = area of circle × fraction of circle
A = πr² × 
= π × 10² × 
= 100π ×
( cancel 20 and 100 )
= 5π × 3
= 15π cm² → C