Rationalize the denominator. - 
A. -24
B. -7
C. - 
D. - 
Answer: C
Mathematics
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Use dimensional analysis to solve the problem.Jarod calculated the speed of a train to be 29 ft/sec. Calculate the speed in miles per hour. Round answers to the nearest whole number.
A. 16 mi/hr B. 23 mi/hr C. 20 mi/hr D. 17 mi/hr
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Find the exact value of the trigonometric function. Do not use a calculator or tables.cot (- ? )
A. 0 B. -1 C. 1 D. Undefined
Mathematics
Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 14 terms of the geometric sequence: 
, - 
, 
, - 
, 
, . . . .
A. - 
B. - 
C. - 
D. - 
Mathematics
Add or subtract by first simplifying each radical (if needed) and then combining any like radical terms.
+ 3
+ 4
A. 24
B. 24
C. 7
D. 7
Mathematics