Evaluate the expression using the given value of the variables.-9x-1y2 for x = -2, y = 2
A. 72
B. 
C. 
D. 18
Answer: D
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Solve the inequality symbolically. Express the solution set in interval notation.-11x + 6 ? -12x + 4
A. (-?, -2] B. [-2, ?) C. (-?, -11) D. (-11, ?)
Use the rational zero theorem to find all possible rational zeros for the polynomial function.P(x) = 3x3 + 48x2 + 48x + 27
A. ±1, ±3, ±6, ±9, ±27
B. ±1, ± 
, ± 
, ± 
, ±3
C. ±1, ± 
, ±3, ±9, ±27
D. ±1, ±3, ±9, ±27
Solve.A college student earned $7300 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 
and the rest at 
If the student received a total of $538 in interest at the end of the year, how much was invested at 
A. $2700 B. $4600 C. $1042 D. $3650
Use the method of natural frequencies to find the indicated probability.In the town of Maplewood a certain type of DVD player is sold at just two stores. 27% of the sales are from store A and 73% of the sales are from store B. 2.4% of the DVD players sold at store A are defective while 4.2% of the DVD players sold at store B are defective. If Kate receives one of these DVD players as a gift and finds that it is defective, what is the probability that it came from store A?
A. 0.174 B. 0.024 C. 0.826 D. 0.211