Simplify.
-2
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use an identity to write the expression as a single trigonometric function or as a single number.
A. 1
B. - 
C. 
D. -
Mathematics
Evaluate the integral.
ln 3x dx
A. 39.22 B. -18.26 C. 49.34 D. 40.23
Mathematics
Factor the expression. Express your answer so that only positive exponents occur. (5m + 9)-6/5 + (5m + 9) 1/5 + (5m + 9) 7/5
A. (5m + 9)-6/5 [1 + (5m + 9)-7/5 + (5m + 9) -13/5] B. (5m + 9)-6/5 [1 + (5m + 9) 7/5 + (5m + 9) 13/5] C. (5m + 9)-6/5 [1 + (5m + 9) 7/5 - (5m + 9) 13/5] D. (5m + 9)-6/5 [1 + (5m + 9) 8/5 + (5m + 9) 11/5]
Mathematics
Use the quadratic formula to solve the equation.5x2 = -8x - 2
A. 
B. 
C. 
D. 
Mathematics