Find the direction angle ? for the given vector. Let 0° ? ? < 360° and round ? to the nearest tenth when appropriate.
A. 6°
B. 112°
C. 225°
D. 45°
Answer: D
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Match the graph of the parabola with the appropriate equation.
A. y = x2 - 2 B. x = y2 + 2 C. x = y2 - 2 D. y = x2 + 2
Find the selling price per item to the nearest cent.Total cost: $46.18Quantity: 30Unsaleable: 10%% Markup on selling price: 28%
A. $1.34 B. $21.38 C. $2.14 D. $2.38
Solve the problem.Greg is opening a car wash. He estimates his cost equation as 
and his revenue equation as 
where x is the number of cars washed in a six-month period. Find the number of cars that must be washed in a six-month period for Greg to make a profit.
A. At least 405 cars B. At least 40,463 cars C. At least 3047 cars D. At least 4047 cars
Solve the problem.A contractor builds two models of homes, the R type and the K type. The R type requires 210 worker-days of labor and $300,000 in capital, while the K type requires 315 worker-days of labor and $200,000 in capital. The contractor has a total of 6300 worker-days and $6,000,000 in capital available per month. Graph the possible combinations of model homes that can be built per month and find the vertices. 
A. 
B. 
C. 
D. 