Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to three decimal places. log8.15.6
A. 0.748
B. 1.214
C. 0.824
D. 0.691
Answer: C
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Solve the problem.The lengths of the sides of a triangle are given by x, x + 4, and x + 8. Find the length of each side if the perimeter is 36 cm.
A. 8 cm, 12 cm, 16 cm B. 9 cm, 13 cm, 17 cm C. 24 cm, 28 cm, 32 cm D. 8 cm, 8 cm, 20 cm
Determine the x values that cause the polynomial function to be (a) zero, (b) positive, and (c) negative.f(x) = (x - 5)(3x + 5)(x + 3)
A. (a) 
, (b) (-?, -3) ? 
, (c) 
? (5, ?)
B. (a) 
, (b) (-3, 5), (c) (-?, -3) ? (5, ?)
C. (a) 
, (b) 
? (5, ?), (c) (-?, -3) ? 
D. (a) 
, (b) (-3, -5) ? (5, ?), (c) (-?, -3) ? (-5, 5)
Solve the problem.Susan has been working on a job that will require 45 hours to complete. If she has completed 
of the job, how many hours has she worked?
A. 40 hours
B. 20 hours
C. 5 hours
D. 4
hours
Find the first and third partial sums, s1 and s3, for the sequencean = (-4)n
A. -4, -64 B. -4, 44 C. -4, -84 D. -4, -52