Two possible solutions of square root 11-2 x =squareroot x^2+4x+4 are -7 and -1 which statement is true?

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Ablock of wood is a cube whose side is x in. long. you cut off a 1-inch thick piece from the entire right side. then you cut off a 3-inch thick piece from the entire top of the remaining shape. the volume of the remaining block is 2,002 in3. what are the dimensions of the original block of wood?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.