A5 kw solar energy system can collect 9000 kwh of energy per year. arizona electricity is .011 cent per kilowatt hour. the average 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?

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step-by-step explanation:

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc