Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by 
What is the cost per ton for 
A. $459.18 B. $5400.00 C. $25.00 D. $5625.00
Mathematics
Solve the problem.The volume V (in cubic inches) of a cylindrical pipe with length 12 inches is given by V(r) = 12?r2, where r is the radius of the piston (in inches). If the radius is increasing with time t (in minutes) according to the formula r(t) = 
t2, t ? 0, find the volume V of the pipe as a function of the time t.
What will be an ideal response?
Mathematics
Prove that the identity is true.
?
What will be an ideal response?
Mathematics
Convert the units using unit fractions.28 lb = 
oz
A. 280
B. 
C. 392
D. 448
Mathematics