Solve.Given that loga2 = 0.3010 and loga3 = 0.4771, find loga12.
A. 1.0791
B. 0.2872
C. 1.2552
D. 0.5677
Answer: A
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Solve the given differential equation (where the function is subject to the given conditions) by using Laplace transforms.y" + 16y = 0, y
= 0, y' 
= 1
A. y = 
cos 4t
B. y = 
sin 4t
C. y = sin 4t
D. y = cos 4t
Write the exponential equation in its equivalent logarithmic form.151/7 = 
A. log7 
= 
B. log1/15 
= 7
C. log1/7 
= 15
D. log15 
= 
Solve the problem.Suppose, for a certain drug, the following results were obtained: Immediately after the drug was administered, the concentration was 10 milligrams per milliliter. Eleven hours later, the concentration had dropped to 2.1 milligrams per milliliter. The concentration decays exponentially according to the law 
Determine the value of k for this drug.
A. k = -0.1419 B. k = 0.1419 C. k = -0.8161 D. k = -0.0067
Factor by grouping.3x2 + 5x + 15x + 25
A. (3x + 5)(3x + 5) B. (x - 5)(3x - 5) C. (3x + 5)(5x + 3) D. (x + 5)(3x + 5)