Which of the following is equivalent to the radical expression below when X>_3?
3x+4
A. V + x + 12
B. VR-7x+12
c. Vx+x-12
D. VR+7x-12

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42