Evaluate: -7 - (-8) + (-3) + 6 - 2 A) -2 B) 0 C) 1 D) 2
2 answers:
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Answer:
You need to buy 13 quarts of paint
Step-by-step explanation:
<u><em>The correct question is</em></u>
A movable section of stage has the shape of a right triangle. You need to apply 2 coats of paint (Assume you will not paint the bottom of the ramp). The paint covers approximately 80 square feet per quart. How many quarts of paint do you need to buy?
<u><em>The picture of the question in the attached figure</em></u>
step 1
we know that
The figure show a triangular prism
The surface area of the triangular prism is given by
----> (the area of the bottom is not included)
where
B is the area of the triangular face
P is the perimeter of the triangular face
L is the length of the prism
we have
substitute
step 2
You need to apply 2 coats of paint
so
Multiply the surface area by 2
step 3
Divide the total square feet by 80 square feet per quart
so
Round up
You need to buy 13 quarts of paint
