Use an associative property to complete the statement. Do not simplify.(6y + 5) + (-5) = 
A. 6y + (5 + (-5))
B. (6y)(5 + (-5))
C. (-5)(6y + 5)
D. (-5) + (6y + 5)
Answer: A
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Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.2, 8, 14, 20, 26, . . .
A. an = 6n - 4; a20 = 116 B. an = 6n - 2; a20 = 118 C. an = 4n - 6; a20 = 74 D. an = 4n - 2; a20 = 78
Express as a single logarithm.4loga9 + 9loga10
A. loga(36 + 90)
B. loga94 ? loga109
C. loga94109
D. loga
Decide whether the ordered pair is a solution of the given system.(-2, -10)y = x2 + 4x - 6y = 2x - 7
A. No B. Yes
Solve the problem.Approximately one-fourth of all glass bottles distributed will be recycled each year. A beverage company distributes 330,000 bottles. The number still in use after t years is given by the function N(t) = 330,000
t .After how many years will 4000 bottles still be in use? Round your answer to the nearest tenth.
A. 3.2 yr B. 4.4 yr C. 6.1 yr D. 0.3 yr