Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Graph. Be sure to label the vertex.y = -3x2
A. 
B. 
C. 
D. 
Mathematics
Find the first three nonzero terms of the Maclaurin expansion of the given function.f(x) = 
(ex + e-x)
A. x - x2 + x3 - ...
B. 1 + 
x2 + 
x4 + ...
C. x + 
x3 + 
x5 + ...
D. 2x + 
x3 + 
x5 + ...
Mathematics
Solve the equation. Write the answer in a + bi form.x2 + 1 - 
i = 0
A. 6 - 2i, -6 - 2i
B. 
- 
, - 
+ 
C. 
+ 
i, - 
- 
i
D. 
+ 
i, - 
- 
i
Mathematics
Add mentally.7 + 0 + 3 + 2 + 5 + 0 + 6
A. 22 B. 24 C. 23 D. 25
Mathematics