Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the given lines.
?
, 
?
?(i) 
axis; ?(ii) the line 
?
A. 
; 
?
B. 
;
?
C. 
;
?
D. 
;
?
E. 
;
?
Answer: A
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Subtract.
A. 1.3996 B. 1.396 C. 1.4096 D. 1.9996
Solve the problem.A company models its yearly expenses in millions of dollars using the equation 
where 
represents 1986. The company's account manager decides to adjust the model so that 
corresponds to 1991 rather than 1986. To do this, she obtains 
Use the Binomial Theorem to express g(t) in descending powers of t.
A. 0.05t3 - 1.35t2 + 11t + 2 B. 0.05t3 + 0.15t2 - 1t + 0 C. 0.05t3 + 0.15t2 + 11t + 6 D. 0.05t3 - 1.35t2 - 2.25t + 12
Multiply and simplify.
? 
A. x3y4
B. x3y8
C. x3y7
D. x3y7
Solve the problem.It costs $19 per hour plus a flat fee of $32 for a plumber to make a house call. After writing an equation for this situation, suppose the total cost to have a plumber come to a house is $203. How many hours did the plumber work?
A. 9 hr B. 16 hr C. 20 hr D. 5 hr