Perform the operations and simplify.
?
?
Assume that no denominators are 0.
?
A. ?
B. 
C. ?
D. ?
Answer: B
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Evaluate the iterated integral.
A. - 
B. 
C. 
D. - 
The table shown was generated by a graphics calculator. The expression y1 represents f(x).
If f(x) = -7, then x = ?
A. 0 B. 2 C. -2 D. Cannot be determined
Solve the problem using your calculator.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Use linear regression to find a linear function that predicts a student's score on Test B as a function of his or her score on Test A.
A. y = -0.930 + 19.4x B. y = 0.930 - 19.4x C. y = 19.4 + 0.930x D. y = -19.4 - 0.930x
Find the best buy (based on cost per unit).There are 3 available long distance calling cards. ABC Phone charges $0.01 per minute and a $0.41 connection charge.Bozo's Telecom charges $0.025 per minute and a $0.11 connection charge.BT&T charges $0.06 per minute and no connection charge.Which company has the best buy for a 15 minute phone call?
A. ABC Phone B. BT&T C. Not enough information D. Bozo's Telecom