Find any restricted values for the given rational expression.
A. none
B. x = 0
C. x = -2
D. x = 2
Answer: D
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Decide whether ?, ?, both, or neither can be placed in the blank to make a true statement.{4, 5, 6} {3, 4, 5, 6}
A. ? B. Neither C. ? D. Both ? and ?
Solve the problem.Matt is going to invest no more than $4000 in two accounts earning 2% and 4% simple interest. He would like the accounts to earn at least $80 after one year. He wants to invest more than $1000 in the account earning 4% simple interest. Write a system of inequalities to describe this situation and solve by graphing.
A. 
B. 
C. 
D. 
The polar coordinates of a point are given. Find the rectangular coordinates of the point.(7.7, 5.5) Round the rectangular coordinates to two decimal places.
A. (7.66, 0.74) B. (5.46, -5.43) C. (7.66, -0.74) D. (5.46, 5.43)
Use the unit circle to determine the value of the given expression or state that it is undefined.tan 
A. 
B. - 
C. 
D. 