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djs1002
08.05.2020 •
Mathematics
If the equation looks like this: y = 2x +6 it is in what form?
A. Standard form
B. Slope-intercept form
C. Solution form
Solved
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Ответ:
Step-by-step explanation:
The fence posts are cylindrical. To determine how much paint is needed to paint the surfaces if each fence post, we need to determine the total surface area of each fence post. The formula for determining the total surface area of a cylinder is expressed as
Total surface area = 2πrh + 2πr²
r and h represents the radius and height of each fence post.
From the information given,
h = 7 feet
Diameter = 1 foot
r = diameter/2 = 1/2 = 0.5 foot
Total surface area = (2 × 3.14 × 0.5 × 7) + (2 × 3.14 × 0.5²)
= 23.55 square feet
Since the number of fence posts is 11, the total amount of paint needed should cover
23.55 × 11 = 259.05 square meters