Dylan had 300 5p coins in a box last month. He now has 360 5p coins. Find the percentage increase.
1 answer:
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Answer:
The surface area of the drum is 3317.5218 square inches.
Step-by-step explanation:
Drum's have a cylindrical form, therefore in order to calculate its surface area we need to apply the correct formula, as shown below:
Where the first term of the sum is the area of the lid and bottom of the drum and the second term is the area of the walls of the drum, r is the radius and h is the height. Applying the data from the problem, we have:
The surface area of the drum is 3317.5218 square inches.
we know that
the equation of the sphere is equal to
where
(h,k,l) is the center of the sphere
r is the radius of the sphere
In this problem
the center is (5, 6, 1) and the radius is 2 units
so
the equation of the sphere is equal to
<u>a) the equation of a circle that is parallel to the xy-plane is</u>
For z=1
<u>b) the equation of a circle that is parallel to the yz-plane is</u>
For x=5
<u>c) b) the equation of a circle that is parallel to the xz-plane is</u>
For y=6