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Using the Multiplicative Inverse Property, what is the missing number in the following equation?

1/10 * 10 =

-1/10

1

1/10

-10

Solve the equation by completing the square. x^2+2x=17

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?