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55 cm^2

Step-by-step explanation:

Find the area of the large rectangle

A = l*w = 9*7 = 63 cm^2

Then find the area of the unshaded rectangle

A = l*w = 4*2 =8cm^2

Subtract the unshaded area from the large rectangle

63 - 8 =55 cm^2

The shaded area is 55 cm^2

55

Step-by-step explanation:

4 x 2 = 8

9 x 7 = 63

63 - 8 = 55

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

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice