Solve the equation.3(4x + 7) = 2(x + 7)
A. - 
B. - 
C. 10
D. -7
Answer: A
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Solve.(c + 8)(c - 1)(c - 8) > 0
A. (-?, 1), or {c
c < 1}
B. (8, ?), or {c
c > 8}
C. (-8, 1) ? (8, ?), or {c
-8 < c < 1 or c > 8}
D. (-?, -8) ? (1, 8), or {c
c < -8 or 1 < c < 8}
Write an equation using the variable x to represent any unknown quantity. Do not solve the equation.The area of a rectangle is 130 square feet. If the length is 8 meters more than the width, write an equation for which the solution is the width.
A. 2x + 2(x + 8) = 130 B. x2 + 64 = 130 C. x(x + 8) = 130 D. x2 + 8 = 130
Find the center and the radius of the circle.x2 + y2 - 4x = -12y - 36
A. (2, -6); r = 3 B. (3, -7); r = 2 C. (2, -6); r = 2 D. (5, -6); r =2
Perform the indicated operation. If the fraction is undefined, say so.
A. 0
B. 122
C. 
D. undefined