Solve the problem.An electric company has the following rate schedule for electricity usage in single-family residences:Monthly service charge $4.93Per kilowatt service charge1st 300 kilowatts$0.11589/kWOver 300 kilowatts$0.13321/kWWhat is the charge for using 300 kilowatts in one month?What is the charge for using 375 kilowatts in one month?Construct a function that gives the monthly charge C for x kilowatts of electricity.
What will be an ideal response?
$39.70
$49.69
C(x) = 
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Use an Euler diagram to determine whether the argument is valid or invalid.A square is a parallelogram.A square has four sides. Therefore, A parallelogram has four sides.
A. valid B. invalid
For the given polar equation, write an equivalent rectangular equation.r2 = 28 rcos ? - 6r sin ? - 9
A. (x + 28)2 + (y - 6)2 = 9 B. (x - 14)2 + (y + 3)2 = 9 C. (x - 14)2 + (y + 3)2 = 196 D. 28x - 6y = 9
The graph of a function of the form y = A cos (Bx - C) + D or y = A sin (Bx + C) + D where B > 0 is given. Determine the equation of the function represented by the graph.Use y = sin x 
A. y = -3 sin 
- 2
B. y = -3 sin 
- 2
C. y = -3 sin 
+ 2
D. y = -3 sin 
+ 2
Use the Venn diagram to find the requested set.Find A ? B.
A. {b, j} B. {e, b, j, h, m, t} C. {e, b, j, h, q, m, t} D. {q}