Represent the complex number below graphically.
2

A. ?
B.
C. ?
D. ?
E. ?


Answer: B

Mathematics

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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = (2x - 9y)3

A. Domain: all points in the xy-plane; range: all real numbers; level curves: lines  c ? 0
B. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines  c ? 0
C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
D. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 

Mathematics

Use a grapher to graph the function.The displacement y of the end of a gear tooth is given by  Sketch the graph of two cycles of y as a function of t in seconds. Label the point on the horizontal axis which represents the end of the second cycle.

A.

B.

C.

D.

Mathematics

Solve the problem.A shirt company has 4 designs that can be made with short or long sleeves. There are 7 color patterns available. How many different types of shirts are available from this company?

A. 56 B. 11 C. 28 D. 13

Mathematics

Find the area of the triangle. If necessary, round the answer to two decimal places. 

A. 2.42 B. 7.88 C. 0.35 D. 1.97

Mathematics