The first three terms of an arithmetic sequence are 23, 22, 21, find the 86th term.
A. –62
B. –108
C. 1,954
D. –63
Answer: A
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Write the symbolic representation for f(x, y) given that f computes the indicated inequality.Five times the sum of x and y
A. f(x, y) = 5x + y B. f(x, y) = 5(xy) C. f(x, y) = 5(x + y) D. f(x, y) = x + 5y
Solve the equation by completing the square.x2 - 8x - 13 = 0
A. {8 - 
, 8 + 
}
B. {4 - 
, 4 + 
}
C. {4 - 
, 4 + 
}
D. {-4 - 
, -4 + 
}
Perform the indicated operation and simplify. Assume all variables represent positive real numbers.
A. 
B. m6
C. m6
D. m3
Decide if the answer is reasonable or unreasonable by rounding the numbers and estimating the answer. If the answer is not reasonable, find the correct answer.31.3 ÷ 1.14 = 2.746
A. Unreasonable, should be 27.46 B. Unreasonable, should be 0.2746 C. Reasonable D. Unreasonable, should be 27.5