Solve the problem. Use 3.14 as the approximate value of ? unless otherwise instructed. Round to the nearest tenth unless otherwise indicated.The foundation for a cylindrical flower bed is a cylinder 21 m in diameter and 3 m high. How many cubic m of concrete are needed to build the foundation?
A. 4154.2 m3
B. 2077.1 m3
C. 395.6 m3
D. 1038.6 m3
Answer: D
Mathematics
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Minimize the function
?
?
subject to the constraint 
.
Fill in the blank(s) with the appropriate word(s).
Mathematics
For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 8 - 9x, g(x) = -5x + 9Find (f + g)(x).
A. -14x + 17 B. -4x + 17 C. 3x D. -5x + 8
Mathematics
Find the slope of the tangent line to f(x) = 
at (1, f(1)). Enter just a reduced fraction of form 
.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Multiply by moving the decimal point the appropriate number of places to the right.2.49 × 100
A. 249 B. 2490 C. 2.49000 D. 24.9
Mathematics