Find the next three terms of the arithmetic sequence.3, 9, 15, 21, . . .
A. 21, 27, 33
B. 27, 33, 39
C. 27, 34, 40
D. 27, 39, 45
Answer: B
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Solve the problem.If a fair coin is tossed twice, the probability of both tosses coming up the same is
A. 
.
B. 
.
C. 
.
D. 
.
E. none of these
At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of .9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are indicated. Round to the nearest whole percent.Greater than 13.4 seconds
A. 3% B. 98% C. 84% D. 98%
Factor the trinomial completely.-2x3 - 8x2 + 64x
A. -2x(x - 4)(x + 8) B. 2x(x + 4)(x + 8) C. -2x(x + 4)(x - 8) D. -2x2(x - 4)(x - 8)
Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.x2 - 5x ? -4
A. (-?, 1]
B. [4, ?)
C. [1, 4]
D. (-?, 1] ? [4, ?)