Find an equation for the graph.

A. y = 2 cos 3x
B. y = 3 cos x
C. y = 3 cos 2x
D. y = 2 cos x


Answer: A

Mathematics

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Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.16x3 + 48x2 - 25x - 75 > 0

A. (-?, -3] ? 

B. (-?, -3) ? 

C.

D.  ? 

Mathematics

If y varies inversely as x, write a general formula to describe the variation.y = 40 when x = 

A. y = 200x
B. y = 
C. y = 
D. y = 

Mathematics

Use the power property to rewrite the expression.logx 

A. 4 + logx y
B. 4logx y
C. logx 
D. logx y

Mathematics

Provide an appropriate response.List all positive integer pairs that have a product of 30.

A.  3, 10; 5, 6 B. 1, 30 C. 1, 30; 2, 15;  3, 10; 5, 6 D.  2, 15;  3, 10; 5, 6

Mathematics