Choose the equation that matches the graph.

A.  -  = 1
B.  +  = 1
C.  +  = 1
D.  -  = 1


Answer: C

Mathematics

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Solve the problem.Midtown Antiques collects 5% sales tax on all sales. If total sales including tax are $1,448.11, find the portion that is the tax amount. Round to the nearest cent.

A. $58.96 B. $68.96 C. $72.41 D. $1,379.15

Mathematics

Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by  and the total profit function is given by , where x represents the number of boxes of computer chips produced. The total cost function, C(x), is such that  Find C(x).

A. C(x) = 10x + 10 B. C(x) = 12x + 6 C. C(x) = 11x + 15 D. C(x) = -0.3x2 + 20x + 10

Mathematics

Graph the quadratic equation.y = x2 + 2x + 1

A.

B.

C.

D.

Mathematics

Rewrite the following as a product of trigonometric functions.sin  + sin 

A. 2 cos  sin 
B. 2 sin  sin 
C. 2 cos  cos 
D. 2 sin  cos 

Mathematics