Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.If the diameter of a sphere is 20 feet, find the surface area of the sphere. Leave ? in your answer.
A. 1600? square feet
B. 1200? square feet
C. 800? square feet
D. 400? square feet
Answer: D
Mathematics
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Find the length of the curve.The curve r = 4 sin3 
, 0 ? ? ? 
A. 
(3
- ?)
B. 
(5? - 9
)
C. 
(2? - 3
)
D. 2(5? - 8)
Mathematics
Write percent as decimal.800%
A. 80 B. 8 C. 800 D. 0.8
Mathematics
Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = - 3 -2x2 - 4x
A. Maximum: -1 B. Minimum: 1 C. Minimum: 0 D. Maximum: 1
Mathematics
Given the matrix, perform elementary row operation to obtain a 1 in the row 1, column 1 position.
?
What will be an ideal response?
Mathematics