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3 years ago

5

A. the electric clothes dryer you are interested in buying costs $300 with tax. it uses $0.50 of electricity for one hour of dry

ing. what is the rate of electric use

1 answer:

dalvyx [7]3 years ago

4 0

0.5$/hr ... Ans...//

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Answer:

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Step-by-step explanation:

The surface area of a square pyramid is given by the following formula:

$S=2hb+b^2$

where it has taken into account the sum of the area of a square and four triangles:

$4(\frac{hb}{2})+b*b=2bh+b^2$

h: slant height = 6cm

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By replacing in the formula you obtain:

$S=2(5cm)(6cm)+(5cm)^2=85cm^2$

hence, the surface area is 85cm^2

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