Estimate the answer to the problem.One cook can make enough food for 350 people a night. How many cooks are needed to feed 2317 people a night?
A. 9 cooks
B. 7 cooks
C. 8 cooks
D. 6 cooks
Answer: B
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Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. 
B. ?
C. 1
D. No limit
Perform the indicated conversion between American and metric units of length.239 miles to kilometers (Round to the nearest thousandth.)
A. 132.778 B. 432.351 C. 384.551 D. 148.539
Sketch the graph and find the area of the region bounded by the graph of the function f and lines 
, 
and 
.
?
?
A. ?
sq units.
?
B. ?
sq units.
?
C. ?
sq units.
?
D. ?
sq units.
?
Find the vertex, focus, and directrix of the parabola. Graph the equation.(y + 1)2 = -8(x + 2)
A. vertex: (1, 2)
focus: (-1, 2)
directrix: x = 3
B. vertex: (-2, -1)
focus: (-2, -3)
directrix: y = 1
C. vertex: (2, 1)
focus: (2, -1)
directrix: y = 3
D. vertex: (-2, -1)
focus: (-4, -1)
directrix: x = 0