Find the zero of the linear function.f(x) = 8x - 48
A. -40
B. 40
C. 6
D. -6
Answer: C
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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?
Divide and simplify.
÷ 
A. 
B. (z - 8)(z + 1)
C. 
D. 
Solve.What is the maximum product of two positive numbers whose sum is 8?
A. 32 B. 4 C. 2 D. 16
Solve the problem.A guy wire to the top of a tower makes an angle of 68° with the level ground. At a point 35 feet farther from the base of the tower and in line with the base of the wire, the angle of elevation to the top of the tower is 20°. What is the length of the guy wire?
A. 43.67 ft B. 12.91 ft C. 16.11 ft D. 94.88 ft