What is the solution of the equation over the complex numbers?

x2+20=0

Enter your answers, as exact values, in the boxes.

A + b = 10 a - b = 2

If 5y + 2x = 25 and x=y-1, what is the value of y

Evaluate the expression 82+5*7-12+36

Degrees of freedom definition statistics

24=4c as a one step equation

What's the perimeter of the polygon shown above? 116cm 136 cm 141 cm 131 cm 43 cm

Write an algebraic expression with the constant 7 and the variable and Y

Add [1 - 4] [3 5] + [-2 6] [-2 4]

5x-3a-10z+5a+8= What is the answer to this problem

The youth center has another mural painted inside the building. if the original painting is 3 feet by 2 feet, and the mural is 15 by 10 feet, what is the scale comparing the painting to the mural?