Find the sum.
A. 30
B. 24
C. 18
D. 39
Answer: D
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Perform the indicated operations.(9x2 - 7x - 9) + (2x2 - 3x + 2)
A. 11x2 + 10x - 7 B. 11x2 - 10x + 7 C. 11x2 - 10x - 7 D. -7x2 + 6x - 5
Do the operation and express the answer in a + bi form.
A) 11 - 7 i
B) - 11 - 7 i
C) - 11 + 14 i
D) - 11 + 7 i
E) 11 + 7 i
The differential equation 
is
Select the correct answer.
?
A. first order linear B. second order linear C. third order linear D. first order nonlinear E. second order nonlinear
Find the maximum value of the objective function and where it occurs, subject to the constraints: ? Objective function: ? z = x + 9y ? Constraints: ? x ? 0 y ? 0 x + 4y ? 20 x + y ? 18 ?2x + 2y ? 21 ?
A. Maximum at (0, 5): 45
B. Maximum at 
: 
C. No maximum
D. Maximum at (0, 0): 0
E. Maximum at 
: 