Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. x - 4
C. x + 4
D. 
Answer: A
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves about the given lines.y = 5x,
y = 0,
x = 3; revolve about the x-axis
A. 450?
B. 
C. 
?
D. 225?
Mathematics
Divide, if possible. Write the answer in simplest form.
÷ 
A. 
B. 
C. 2
D. 
Mathematics
Find a unit vector at which the quadratic form xTAx is maximized, subject to the constraint xTx = 1.A = 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Suppose Janet could save $3 at the end of January, $6 at the end of February, $12 at the end of March, and so on. What amount would she have saved by the end of one year? Round to the nearest cent.
A. $6142.50 B. $4095.00 C. $189.00 D. $12,285.00
Mathematics