Solve using the elimination method. Use a graphing calculator to check your answer.
x - 
y = -18
x + 
y = -9
A. (0, -12)
B. (0, 12)
C. (-12, 0)
D. (12, 0)
Answer: C
Mathematics
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Provide an appropriate response.The payoff table for three possible courses of action A1, A2, and A3 is given below.pi?A1xi?A2xi?A3xi?.3$70$40$50.2$100$120$110.1$160$140$90.4$80$140$160Which course of action will produce the largest expected value? What is it?
What will be an ideal response?
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Use the reference angle to find the exact value of the expression. Do not use a calculator.csc 
A. - 
B. -
C. -
D. - 
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Evaluate the expression without a calculator.log121
A. 12 B. 1 C. 10 D. 0
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Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
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