Write as the sum and/or difference of logarithms. Express powers as factors. log18
A. log18(7
) - log18n
B. log187 + 
log18m - log18n
C. log187 ? 
log18m ÷ log18n
D. log18n - log187 - 
log18m
Answer: B
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Complete the ordered pairs. Then graph the equation by plotting the points and drawing a line through them.3x = y - 6(0, ), ( , 0), (3, )
A. (0, 6), (18, 0), (3, 7)
B. (0, -6), (2, 0), (3, 3)
C. (0, 6), (-2, 0), (3, 15)
D. (0, 6), (2, 0), (3, -3)
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.-3x - 7y - 6z = -65 5x + 9y - 5z = 43 9x - 9y + 8z = 95
A. {(10, 0, 4)} B. {(2, 4, 2)} C. {(9, -2, -4)} D. {(9, 2, 4)}
Evaluate the integral.
A. 32 B. 16 C. 1 D. 12
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = 3x5 - 7x4 + 3x3 - 7
A. 
B. 
C. 
D. 