Use properties of logarithms to expand the logarithmic expression as much as possible.loga 
A. 4 loga x - 3 loga (x + 5) - 2 loga ( x - 2)
B. loga x4 + loga (x + 5)1/3 - loga (x - 2)2
C. 4 loga x + loga (x + 5) - 2 loga (x - 2)
D. loga x4 + loga (x + 5)-3 - loga (x - 2)2
Answer: C
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Solve the problem.The formula can be used to estimate the maximum safe velocity v, in miles per hour, at which a car can travel along a curved road with a radius of curvature r, in feet. To the nearest whole number, find the radius of curvature if the maximum safe velocity is 35 miles per hour.
A. 490 ft B. 1225 ft C. 196 ft D. 3063 ft
Solve the problem.A musician plans to perform 5 selections for a concert. If he can choose from 7 different selections, how many ways can he arrange his program?
A. 2520 B. 16,807 C. 35 D. 21
Round the numbers so that there is only one non-zero digit, and estimate the answer. Then perform the indicated operation to find the exact answer.62.9 - 8.29
A. estimate: 52; exact: 54.61 B. estimate: 62; exact: 64.74 C. estimate: 62; exact: 62.64 D. estimate: 52; exact: 54.71
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A.
B.
C.
D.