Find the sum.-3 + (-15)
A. -18
B. -12
C. 12
D. 18
Answer: A
Mathematics
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Find the power series representation for f(x).f(x) = xe-2x
A. x - 2x2 + 
- 
+ . . .
B. 1 - 2x + 
- 
+ . . .
C. 1 - 2x2 - 
- 
- . . .
D. x + 2x2 + 
+ 
+ . . .
Mathematics
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Mathematics
Solve the problem.A bag contains 8 red marbles, 3 blue marbles, and 1 green marble. What is the probability of choosing a marble that is red or green when one marble is drawn from the bag?
A. 
B. 
C. 
D. 9
Mathematics
Graph the system of inequalities. Find the coordinates of any vertices.6y - x ? 8,-y + 3x ? 6,x ? 0
A. 
, (0, -6)
B. 
C. 
, (0, 6) , (0, 2)
D. 
, (0, 2) , (-8, 0)
Mathematics