Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos
A. 1
B. 
C. 0
D. No limit
Answer: D
Mathematics
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Find the sum of the given infinite geometric series.2 + 0.02 + 0.0002 + . . .
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression or indicate that the root is not a real number.-
A. -312 B. -25 C. 25 D. Not a real number
Mathematics
Determine whether the function is one-to-one. If so, find a formula for the inverse.g(x) = 6x
A. g-1(x) = - 
B. g-1(x) = -6x
C. g-1(x) = 
D. Not a one-to-one function
Mathematics
Use a graphing utility to find or approximate the x-intercepts of the graph of the quadratic function.y = x2 + 6x + 8
A. (12, 0), (-4, 0)
B. (-2, 0), (-4, 0)
C. (
, 0) (- 
, 0)
D. (2, 0), (4, 0)
Mathematics