Find the difference. (9x^2-2x+7)-(+4x-1)

 9x^2 - 6x + 8

Step-by-step explanation:

(9x^2 - 2x + 7) - (4x - 1)     Subtract like terms

The term 9x^2 doesn't have any other term so it will stay alone.

-2x - 4x  = - 6x

7 - (-1) = 8

Put them together to get  9x^2 - 6x + 8  

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

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360/29

step-by-step explanation: