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Question 145096: hope someone can help me with this one
1.Radisson Electric Company’s monthly bill includes a basic customer charge of $12.00, and a usage charge of $0.07 for each kilowatt hour of electricity supplied.
- Write an equation that can be used to determine the monthly bill, given the number of kilowatt hours h supplied.
-Determine the electric bill if 1850 kilowatt hours of electricity are supplied.
2. Consider the points (4, –1) and (7, 8).
(a) Find the midpoint of the line segment with the given endpoints.
(b) Find the distance between the points. Give an exact answer and also an approximation to three decimal places. Show some work.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 1.Radisson Electric Company’s monthly bill includes a basic customer charge of $12.00, and a usage charge of $0.07 for each kilowatt hour of electricity supplied.
- Write an equation that can be used to determine the monthly bill, given the number of kilowatt hours h supplied.
Equation: charge(h) = 0.07h + 12
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-Determine the electric bill if 1850 kilowatt hours of electricity are supplied.
c(1850)= 0.07*1850 + 12 = $141.50
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2. Consider the points (4, –1) and (7, 8).
(a) Find the midpoint of the line segment with the given endpoints.
x-coordinate: (4+7)/2 = 11/2
y-coordinate: (8-1)/2 = 7/2
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(b) Find the distance between the points. Give an exact answer and also an approximation to three decimal places. Show some work.
d = sqrt[(8--1)^2 + (7-4)^2] = sqrt[81 + 36] =sqrt(217)
d is approximately 14.7309...
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Cheers,
Stan H.
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