Evaluate the expression for the given replacement values.5x + 4y for x = 9 and y = 2
A. 13
B. 49
C. 9
D. 53
Answer: D
Mathematics
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Graph the function.y = -tan (x + ?)
A. 
B. 
C. 
D. 
Mathematics
Simplify the complex rational expression.
A. 7
B. 7 - x2
C. 
D. 
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.z-2/5 ? z3/5
A. z1/5 B. z5/6 C. z6/5 D. z-1/5
Mathematics
Divide.-8.1 ÷ 0.09
A. -9 B. -80.1 C. -90 D. -8.01
Mathematics