Write the following as a complex number in standard form a + bi.4 - 
A. 4
+ 4i
B. 4 - 4i
C. 4
- 4i
D. 4 + 4i
Answer: B
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Find all the local maxima, local minima, and saddle points of the function.
A. f(-10, -5) = 2260, local maximum; f(10, 5) = -2240, local minimum
B. f(10, 5) = -2240, local minimum; f(10, -5) = -1740, saddle point; f(-10, 5) = 1760, saddle point; 
local maximum
C. f(10, -5) = -1740, saddle point; f(-10, 5) = 1760, saddle point
D. f(-10, -5) = 2260, local maximum
Solve the problem.Assume that a population is growing initially at a rate of 7%. If P0 = 0.1, use the logistic growth model to compute the value of P2.
A. 0.11 B. 0.04 C. 0.14 D. 0.26
Find the foci of the ellipse.
+ 
= 1
A. (2, -2+ 
), (2, -2 - 
)
B. (- 
, -2), (
, -2)
C. (-2, -2), (6, -2)
D. (2 + 
, -2), (2 - 
, -2)
Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.
2
A. 
B. 
C. 
D. 