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slamgirl [31]
3 years ago
7

A 5 kw solar energy system can collect 9000 kwh of energy per year. Arizona electricity is .011 cent per kilowatt hour. The aver

age Arizona home uses 66 million btu per year. Given that 1 btu= 0.000293 kwh find the number of kilowatt hours used by the average home in Arizona in a given year.
B. How much does a typical Arizonan homeowner spend on electricity per year?

C. If a typical Arizona household were to install a 5 kw solar system, how much would it save on electricity per year?

D. Given that the 5 kw system would cost $20,000 to install (minus a 30% federal tax credit) how many years would it take to recoup the initial investment?
Mathematics
1 answer:
alexira [117]3 years ago
4 0
I don’t know but I think it’s dim guess
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Rewrite in Polar Form....<br> x^(2)+y^(2)-6y-8=0
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3 0
3 years ago
What is the SLOPE of the LINES that passes through the points (13,1) and (-2,4 )
olga55 [171]

Answer: M= slope

M= -1/5

Step-by-step explanation:

M= the change in y over the change in x so you would do 1-4 over 13-(-2) which gives you -3 over 15 which is simplified to give you the answer which is -1/5.

7 0
3 years ago
Rectangular prism has a volume of 500 in.³ and the area of the base is 25 in.² what is the height of the rectangular prism
Evgesh-ka [11]

Answer:

20 in

Step-by-step explanation:

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3 years ago
What is the solution set to the following system?
elena-s [515]
The correct answer is C
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3 0
3 years ago
HELP
Inga [223]

Answer:

3.75 quarts, rounded to 3.8 quarts

Step-by-step explanation:

3 quarts of solution is 10% antifreeze, so 0.3 quarts are already antifreeze, and 2.7 quarts are not.

a(the antifreeze we already have)+x(what we're going to add)= 1.5*2.7

Let me explain. If we have 60% antifreeze, 40% is not. 60/40=1.5

Substitute a for 0.3

0.3+x=4.05  Subtract 0.3 from both sides

x=3.75

7 0
2 years ago
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