Simplify the expression
square root -1 over (3+8)-(2+5)

Which of the following is true for the relation f(x)=2x^2+1

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

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