Multiply.(x - 7)(x - 8)
A. x2 + 56x - 15
B. x2 - 15x + 56
C. x2 - 15x - 15
D. x2 - 16x + 56
Answer: B
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Solve the problem.A formula used to determine the velocity v in feet per second of an object (neglecting air resistance) after it has fallen a certain height is 
where g is the acceleration due to gravity and h is the height the object has fallen. If the acceleration g due to gravity on Earth is approximately 32 feet per second, find the velocity of a bowling ball after it has fallen 90 feet. (Round to the nearest tenth.)
A. 75.9 ft per sec B. 53.7 ft per sec C. 5760 ft per sec D. 13.4 ft per sec
Use a graphing calculator to approximate the real zeros. Give each zero as a decimal to the nearest tenth.f(x) = 2x3 + x2 - 14x - 7
A. -0.5, 2.6, -2.6 B. 0.5, 2.6, -2.6 C. 2, 7, -7 D. -2, 2.7, -2.7
Solve the system of equations by substitution.
A. x = 2, y = 8; (2, 8) B. x = 2, y = 9; (2, 9) C. x = 3, y = 8; (3, 8) D. x = 3, y = 9; (3, 9)
Find the asymptotes of the hyperbola.x2 - y2 - 6x + 8y - 23 = 0
A. y - 3 = (x - 4) and y - 3 = - (x - 4)
B. y + 3 = (x + 4) and y + 3 = - (x + 4)
C. y - 4 = (x - 3) and y - 4 = - (x - 3)
D. y - 4 = 
(x - 3) and y - 4 = - 
(x - 3)