What is the area of the triangle

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.