Answer the question.The points (-3, 6), (0, 9), ( 2, 1), and ( 5, 4) are the vertices of a quadrilateral. Is the quadrilateral a rectangle?
A. Yes
B. No
Answer: A
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Solve the problem.The Celsius temperature at a point (x,y) on a large metal plate is given by T(x, y) = 80 + (x + 1)2(y - 2)2 + (x-2)2 .Find the direction of heat flow in the plate at the point (2, 1). Heat flows in the direction of steepest temperature decrease.
A. In the direction 
B. In the direction 
C. In the direction 
D. In the direction 
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 620 with r = 1.9. Write a recursive sequence that describes this data, where an denotes the insect density during year n.Find the terms a1 , a2 , a3 , ...., a5 . Round to two decimal places, if necessary.
A. a1 = 1178.00, a2 = 2238.20, a3 = 4252.58, a4 = 8079.90, a5 = 15,351.81 B. a1 = 620, a2 = 62.00, a3 = 6.20, a4 = 0.62, a5 = 0.06 C. a1 = 620, a2 = 1178.00, a3 = 2238.20, a4 = 4252.58, a5 = 8079.90 D. a1 = 620, a2 = 620, a3 = 620, a4 = 620, a5 = 620
Find the derivative of the function.
?
What will be an ideal response?
Determine if the vertex of the graph is a maximum point or a minimum point.y = - 
(x + 3)2 - 1
A. Minimum B. Maximum