Solve the problem.The range r of a projectile is given by 
where v is the initial velocity and ? is the angle of elevation. If r is to be 
and 
what must the angle of elevation be? Give your answer in degrees to the nearest hundredth.
A. 0.48°
B. 0.24°
C. 89.76°
D. 0.34°
Answer: B
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Find the real roots of the equation by factoring.
?
What will be an ideal response?
Find the real solutions of the equation.(x - 4)2 + 3(x - 4) - 18 = 0
A. {-2, 7} B. {-6, 1} C. {-7, 2} D. {-1, 6}
Solve the problem.A used piece of farming equipment sold for 9% of its original value, or for $500. Find the original value of the piece of farming equipment.
A. $545 B. $509 C. $45 D. $950
The total weekly revenue (in dollars) of the company realized in manufacturing and selling its rolltop desks is given by
?
?
where x denotes the number of finished units and y denotes the number of unfinished units manufactured and sold each week. The total weekly cost attributable to the manufacture of these desks is given by
?
?
dollars. Determine how many finished units and how many unfinished units the company should manufacture each week in order to maximize its profit. What is the maximum profit(P) realizable?
?
x = __________
?
y = __________
?
P = $__________
What will be an ideal response?