MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 1) A bookcase is to be...

1-5 I got the answers,acbacnot sure if they are correct

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.Solve the problem.1) A bookcase is to be constructed as shown in the figure below. The height of the bookcase is 4 feet longerthan the length of a shelf. If 26 feet of lumber is available for the entire unit (including the shelves, but NOT theback of the bookcase), find the length and height of the unit.shelf lengthheightA) length = 3 ft; height = 12 ftB) length = 11.0 ft; height = 13.5 ftC) length = 3 ft; height = 7 ftD) length = 4.5 ft; height = 8.5 ftSolve the equation by the zero-factor property.2) x2 + 10x - 24 = 0A) { -2, 12} B) { -12, 2} C) { -12, -2} D) {2, 12}Solve the equation by the square root property.3) (3x + 7)2 = 36A) $1 1313 3B) toSolve the equation by completing the square.4) x2 + 10x =-16A) { -2. -8}B) { -2, 8}C) {2, 8}D) {2, -8}Solve the equation using the quadratic formula.5) 3x2 =-12x - 5 5)A) J-62 21 1B)-12 t 213c)L-62 21D) -624 51