Find the appropriate linear cost or revenue function.An electrician charges a fee of $45 plus $30 per hour. Let C(x) be the cost in dollars of using the electrician for x hours. Find the linear cost function.
A. C(x) = 45x + 30
B. C(x) = 30x - 45
C. C(x) = 30x + 45
D. C(x) = 45x - 30
Answer: C
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Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex cube roots of -8i
A. 2(cos 180° + i sin 180°), 2(cos 300° + i sin 300°), 2(cos 60° + i sin 60°) B. 8(cos 90° + i sin 90°), 8(cos 210° + i sin 210°), 8(cos 330° + i sin 330°) C. 512(cos 90° + i sin 90°), 512(cos 210° + i sin 210°), 512(cos 330° + i sin 330°) D. 2(cos 90° + i sin 90°), 2(cos 210° + i sin 210°), 2(cos 330° + i sin 330°)
Provide an appropriate response.The equation y = x2 is satisfied by the points (2, 4) and (-2, 4). A horizontal line may be drawn between these two points. Is 
a function? Why or why not?
What will be an ideal response?
Solve the equation.
= 
A. 
B. 
C. 
D. {17}
Provide an appropriate response.Explain why the sum 
+ 
- 
can be simplified quickly.
What will be an ideal response?