Solve the problem.Round 19,724 to the nearest hundred.
A. 19,710
B. 19,700
C. 19,600
D. 19,800
Answer: B
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Set up the iterated integral for evaluating 
over the given region D. DD is the right circular cylinder whose base is the circle 
in the xy-plane and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
Determine the population and the sample.A graduate student at a university wants to find out the opinions of undergraduate students about campus dining choices. He has access to a list of 2500 undergraduate student email addresses and emails a survey to 500 of these undergrads selected at random.
A. Population: undergraduate students at the university; Sample: 2500 undergraduate students from an email list B. Population: undergraduate students at the university; Sample: 500 undergraduate students from an email list C. Population: 2500 email addresses; Sample: 500 undergraduate students from an email list D. Population: 500 undergraduate students from an email list; Sample: 2500 email addresses
Solve the equation.Let f(x) = 
. Find all x for which f(x) = 6.
A. 
B. 
C. 
D. ?
Factor by grouping.12x2 + 8xy - 15xy - 10y2
A. (4x - 5)(3x + 2) B. (4x + 5y)(3x + 2y) C. (12x - 5y)(x + 2y) D. (4x - 5y)(3x + 2y)