Let a and b be positive numbers. Determine whether the statement is true or false.a(-b) is a negative number.
A. True
B. False
Answer: A
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Solve the problem.Suppose that f is continuous and that 
and 
Find 
A. 12 B. -4 C. -12 D. -3
Solve problems using a calculator.Balance the following checking account record:Date DepositsWithdrawalsBalance8/1??$87008/8$2290??8/15?$220?8/22$573??8/29?$1057?9/1??A(a) Find the new balance A.(b) Keep a running balance by filling each blank in the balance column.
A. (a) $10,286, (b) $10,990, $10,770, $11,343, $10,286 B. (a) $10,286, (b) $10,896, $10,730, $11,622, $10,286 C. (a) $10,288, (b) $10,990, $10,761, $11,343, $10,283 D. (a) $10,245, (b) $10,998, $10,690, $11,527, $10,286
Solve the problem.The symmetry type of the border pattern . . . ? ? ? ? ? . . . is
A. 1m. B. mm. C. mg. D. m1. E. none of these
Solve. Round results to the nearest thousandth.x2 + 10x - 31 = 0
A. 10.174, -20.174 B. 2.483, -12.483 C. 20.174, -10.174 D. 12.483, -2.483