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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Find a polar equation for the circle.x2 + 
x + y2 = 0
A. r = 
sin ?
B. r = - 
sin ?
C. r = 
cos ?
D. r = - 
cos ?
The figures are similar. Find the length of the missing side indicated with an x or y.
A. x = 10 B. x = 5 C. x = 11 D. x = 15
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Graph the parabola whose equation is given.y = x2 + 1
A. 
B. 
C. 
D. 