Find the sum of the infinite series.
A. undefined
B. 
C. 2
D. 
E. 
Answer: E
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Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R
= 5xC
= 0.01x2 + 0.7x + 40.
A. 285 units B. 215 units C. 430 units D. 570 units
Graph the numbers on a number line.- 3
, -1, 1, 3
A. 
B. 
C. 
D. 
Solve.The speed of a vehicle is inversely proportional to the time it takes to travel a fixed distance. If a vehicle travels a fixed distance at 40 miles per hour in 60 minutes, how fast must it travel to cover the same distance in 30 minutes?
A. 80 miles per hour
B. 
miles per hour
C. 45 miles per hour
D. 20 miles per hour
Find the slope-intercept form for the line satisfying the conditions.Perpendicular to y = 
x + 13, passing through the point (-3, -7)
A. y = -3x - 16
B. y = -3x + 16
C. y = 
x - 6
D. y = - 
x - 8