If x > 0.9, which of the following could be the value of x?
x is replaced by 1 - x everywhere in the expression , with and . If the result is then multiplied by , the outcome equals
Which of the following is equivalent to the pair of inequalities x + 6 > 10 and x – 3 ≤ 5?
If x and y are positive, which of the following must be greater than 1/√（x+y） ?
Machine A produces pencils at a constant rate of 9,000 pencils per hour, and machine B produces pencils at a constant rate of 7,000 pencils per hour. If t...
240, 120, 60, 30, . . .In the sequence above, each term after the first is 1/2 of the preceding term. What is the least term of the sequence that is greater than 1 ?