Find the root. 
A. -48.6
B. 3
C. -3
D. Not a real number
Answer: C
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Use a calculator to approximate the area of the surface generated when the given curve is revolved about the x-axis. Round to two decimal places when necessary.y = ln x6 on [1, 
]
A. 29.05 B. 15.18 C. 2.42 D. 4.62
Simplify.
A. 
B. x2
C. -x2
D. - 
Evaluate the double integral
?
?
for the given function f(x, y) and the region R.
?
; R is bounded by 
and y = x.
?
A. 
B. 
C. 
D. 
First, use front end rounding to estimate each answer. Then find the exact answer.Linda's stock fund lost an average of 
each month. How much did the fund lose over a one-year period?
A. estimate: 
? 12 = 
; exact: 
? 12 = 
B. estimate: 
? 10 = 
; exact: 
? 12 = 
C. estimate: 
? 10 = 
; exact: 
? 12 = 
D. estimate: 
? 12 = 
; exact: 
? 12 = 