Integrate the function.
A. 2tan-1 
B. 2sin-1 2
C. 2tan-1 2
D. 
Answer: C
Mathematics
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Use properties of logarithms to simplify.8log8 2 + 4log4 9
A. 12 log12 11 B. 11 C. 32 log32 18 D. 52
Mathematics
Find the probability.A bag contains 6 red marbles, 3 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue when one marble is drawn from the bag?
A. 
B. 
C. 7
D. 
Mathematics
Find the sum.-14.0 + (-11.2)
A. -25.2 B. 25.2 C. 2.8 D. -2.8
Mathematics
Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 92 feet. The height of the arch 25 feet from the center is to be 7 feet. Find the height of the arch at its center.
A. 7.27 feet B. 25.29 feet C. 12.88 feet D. 8.34 feet
Mathematics