Rationalize the denominator. Assume that all variables represent positive real numbers.- 
A. - 
B. - 
C. - 
D. - 
Answer: C
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Find dy for the given values of x and ?x.y = 2x5 - 3x2 + x - 1; x = -1, ?x = 
A. 
B. 
C. 
D. 
Find the Cartesian coordinates of the given point.
A. (-4, 0) B. (4, 0) C. (0, 4) D. (0, -4)
Describe the situation with a linear inequality and then solve the inequality.A standard train ticket in a certain city costs 
per ride. People who use the train also have the option of purchasing a frequent rider pass for 
each month. With the pass, a ticket costs only
per ride. Use an inequality to determine the number of train rides in a month for which purchasing the monthly pass is more economical than purchasing the standard train ticket.
A. 22 or more times B. 23 or more times C. 24 or more times D. 25 or more times
Verify the identity.
+ 
= 2 csc x
What will be an ideal response?