Solve.4x2 - 28 = 0
A. -
, 
B. ±7
C. 8
D. 14
Answer: A
Mathematics
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Factor out the largest possible common factor.x(y + 2) + 9(y +2)
A. (y +2)(x + 9) B. 2y(x + 9) C. (xy + 2x) + (9y + 18) D. 9x(y +2)
Mathematics
Graph the system of inequalities. Indicate the solution set by shading.y ? (x + 2)3y ? (x + 2)2 - 6y + x ? 4
A. 
B. 
C. 
D. 
Mathematics
Express the graph shown using interval notation. Also express it as an inequality involving x.
A. (1, 8) 1 < x < 8 B. (1, 8] 1 < x ? 8 C. [1, 8) 1 ? x < 8 D. [1, 8] 1 ? x ? 8
Mathematics
Write as the sum and/or difference of logarithms. Express powers as factors. log7
A. log195 - log19n - log19m
B. 
log715 - 2 log7y - 2 log7x
C. 2 log715 - 2 log7y - log72
D. 
log715 - 2 log7y - log7x
Mathematics