Solve the equation.log9x = -2
A. 512
B. 
C. 81
D. 
Answer: B
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The logarithm is the inverse of an exponential function.
Answer the following statement true (T) or false (F)
Solve the problem.A shirt company has 4 designs each of which can be made with short or long sleeves. There are 5 different colors available. How many different shirts are available from this company?
A. 11 B. 9 C. 40 D. 20
The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = sin-1(9t)i + ln(2t2 + 1)j + 
k
A. 
B. 
C. 
D. 0
Solve the problem.An airport parking lot charges $5.00 for the first two hours of parking and $0.75 for each additional half hour or part thereof. If Sam parks his car for 8 hours, how much does he pay for parking?
A. $9.00 B. $9.50 C. $12.00 D. $14.00