Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.csc 900°
A. -1
B. -2
C. 
D. undefined
Answer: D
Mathematics
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Evaluate the integral.
ln 7x dx
A. 137.72 B. 134.25 C. -38.11 D. 162.03
Mathematics
Solve.In preparation for his new job, Kevin bought two suits at $164 a piece, four shirts at $25 a piece, two pairs of shoes at $69 a piece, four ties at $21 a piece, and five pairs of socks at $7 a piece. What was the total cost of these items?
A. $699 B. $286 C. $650 D. $685
Mathematics
Use the product, quotient, and power rules of logarithms to rewrite the expression as a single logarithm. Assume that all variables represent positive real numbers.logb x + logb y
A. logb xy B. logb (x + y) C. log2b (x + y) D. log2b xy
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.-
A. -3x30y12 B. 9x10y12 C. 3x10y18 D. 3x10y12
Mathematics