Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log5.6 71
A. 12.68
B. 1.85
C. 0.40
D. 2.47
Answer: D
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t2 - 5)i + ( 2t - 6)j + 2k
A. a = 
T + 
N
B. a = 
T + 
N
C. a = 
T + 
N
D. a = 
T + 
N
Solve the problem.A projectile is fired with an initial velocity of 550 feet per second at an angle of 70° with the horizontal. In how many seconds will the projectile reach its maximum altitude? (Round your answer to the nearest tenth of a second.) The parametric equations for the path of the projectile are x = (550 cos 70°)t, and y = (550 sin 70°)t - 16t2.
A. 12.8 seconds B. 16.2 seconds C. 24.3 seconds D. 21 seconds
Use the associative property of addition to rewrite the sum, then simplify.(x + 9) + 0
A. 9 B. x + 10 C. 9x D. x + 9
Solve.
+ 
= -1
A. 
B. 1
C. 0
D. No solution