The diameter of the larger circle is 20.4 cm. the diameter of the smaller circle is 10.8 cm. what is the best approximation for the area of the shaded region? use 3.14 to approximate pi. 72.3 cm² 235.1 cm² 289.4 cm² 326.7 cm² small circle inside big circle, shaded region outside smaller circle and inside larger circle

the answer is true.

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.