Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
Answer: C
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Simplify.
A. 13 B. 3x13 - 7x12y4 + 5x11y6 C. 3x3 - 21x7y3 + 15x6y5 D. 3x3 - 7x2y2 + 5xy4
Determine whether the variation between the indicated quantities is direct or inverse.The price of an item and the quantity of the item that you can purchase with a given amount of money
A. Direct B. Inverse
Find the real solutions of the equation by factoring.5x3 + 4x2 = 45x + 36
A. 
B. 
C. {-3, 3}
D. 
The figure shows a walkway with a handrail. Angle ? is the angle between the walkway and the horizontal, while angle ? is the angle between the vertical posts of the handrail and the walkway. Assume that the vertical posts are perpendicular to the horizontal.
?
?
Find ? if ? = 52°.
?
A. ? = 57° B. ? = 123° C. ? = 38° D. ? = 128° E. ? = 52°