Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 2ab 
B. 2ab 
C. - 2a2b 
D. 2 
Answer: C
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Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use the critical values table for the specified sample size and level of significance to determine whether a linear correlation exists.r = 0.305 when n = 5 at ? = 0.05
A. No B. Yes
Rationalize the denominator.
A. 
B. 
C. 
D. 
Solve the problem.City A is 426 miles due north of of City B. Find the difference in the latitudes of these two cities, assuming that the radius of Earth is 3960 miles.
A. ?19.364° B. ?6.164° C. ?10.758° D. ?7.435°
The replacement cost for construction of a building is $64/ft 2. Use the illustration to determine how much insurance should be carried for full replacement.
A. $183,168 B. $182,126 C. $169,838 D. $187,254 E. $170,880