Rationalize the denominator. Assume that all variables represent positive real numbers.- 

A. - 
B. - 
C. - 
D. - 


Answer: B

Mathematics

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The following table shows the total cost C of joining a music club and downloading s songs. Find a linear model for the total cost as a function of songs downloaded. Round the slope to three decimal places, if necessary.  x 2 8 14 20 y 12.16 16.71 21.26 25.81?

A.
B. ?
C. ?
D. ?

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Solve the problem.David earns $9 per hour for a 40-hour work week and time-and-a-half for overtime. One week he worked 50 hours. Find his gross pay for the week.

A. $675.00 B. $495.00 C. $360.00 D. $450.00

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Evaluate the expression by hand, if possible.log

A. 12
B.
C. 3
D.

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Estimate the surface area of the golf green shown in the figure using the midpoint rule. ?    ? 

A. 636 B. 159 C. 1431 D. 1561 E. 644

Mathematics