Express as a sum of logarithms.ln 0.7b
A. ln 0.7 - ln b
B. ln(0.7 + b)
C. ln 7 - ln b
D. ln 0.7 + ln b
Answer: D
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The double integral gives the mass of a lamina R. Determine the density ?, the mass, and the center of mass.
A. k; 2k; 
B. k; 2k; 
C. 2k; 2k; 
D. k; 4k; 
Find the x- and y-intercepts of f.f(x) = (x - 4)2(x2 - 25)
A. x-intercepts: -4, -25; y-intercept: 100 B. x-intercepts: -5, 4, 5; y-intercept: 400 C. x-intercepts: -5, 4, 5; y-intercept: -400 D. x-intercepts: 4, 25; y-intercept: 100
Solve the problem.The cost, c, in dollars of car rental is 8 + 
m, where m is the number of miles driven. Graph the equation and use the graph to estimate the cost of car rental if the number of miles driven is 23.
A. About 14 dollars B. About 10 dollars C. About 25 dollars D. About 19 dollars
Solve the system by elimination.3p + 4q = -1.56p + 8q = -3
A. p = -1.5, q = 1.5 B. p = 2, q = -1.5 C. p = 1.5, q = -1.5 D. p = 1.5, q = -1