Write as the sum and/or difference of logarithms. Express powers as factors.logbyz7
A. logby + logb7z
B. logby + 7logbz
C. 7logby + 7logbz
D. 7logbyz
Answer: B
Mathematics
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Solve the equation.
= 2x
A. {3} B. {-3} C. ? D. {1}
Mathematics
Find the dimension of the matrix.
A. 5 × 3 B. 15 C. 2, -9, -9, 6, 4, 5, 9 D. 3 × 5
Mathematics
Describe the domain of the function f(x) = 
.
A. x ? -1, -3, and f(2) = 1
B. x ? 1 , and f(0) = 
C. x ? 1, 3
D. x = 1, 3
E. none of these
Mathematics
Solve the inequality and graph the solution set.
? 3
A. -9 ? h ? 6 ; [-9, 6]
B. -9 ? h ? -3 ; [-9, -3]
C. No solution
D. -9 < h < -3 ; (-9, -3)
Mathematics