Solve the problem.A plane makes a 240-mile trip against a head wind in 1 hour and 30 minutes and returns, with a tail wind of the same speed, in 1 hour. What is the speed of the wind?
A. 40 mph
B. 160 mph
C. 200 mph
D. 80 mph
Answer: A
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Find the perimeter (P) of each figure.
A. 420 m B. 36 m C. 94 m D. 50 m
Find the measure of the indicated angle. Figure is not drawn to scale.
A. 25° B. 50° C. 65° D. 115°
Let 
and compute the Riemann sum of f over the interval 
, choosing the representative points to be the left endpoints of the subintervals, using:
?
Two subintervals of equal length 
.
?
__________ sq units
?
Five subintervals of equal length 
.
?
__________ sq units
?
Ten subintervals of equal length 
.
?
__________ sq units
?
Can you guess at the area of the region under the graph of f on the interval 
?
?
? __________ sq units
What will be an ideal response?
Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. x-intercepts: (-5, 0) and (4, 0)
y-intercept: 
B. x-intercepts: (-5, 0), (0, 0), and (4, 0)
y-intercept: (0, 0)
C. x-intercepts: (-5, 0) and (4, 0)
y-intercept: 
D. x-intercepts: (-5, 0), (0, 0), and (4, 0)
y-intercept: (0, 0)