Suppose that John hands you a coin to flip and wants to bet on the outcome. Now, John has tried this sort of thing before, and you suspect that the coin is "rigged." You decide to test this hypothesis by taking a sample. You flip the coin twice, and it is heads both times. You say, "Aha, I knew it was rigged!" John replies, "Don't be silly. Any coin can come up heads twice in a row."
?
The following scheme was devised to allow fair results even if the coin is somewhat biased. The coin is flipped twice. If it comes up heads both times or tails both times, it is flipped twice again. If it comes up heads-tails, this will decide the outcome in favor of the first party; and if it comes up tails-heads, this will decide the outcome in favor of the second party. Will this result in a fair toss even if the coins are biased?
?
A. No
B. Yes
Answer: B
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Determine all values for the digit x that make the first number divisible by the second number. If none exist, so state. 533x is divisible by 11.
Fill in the blank(s) with the appropriate word(s).
Graph the pair of parametric equations with the aid of a graphing calculator.x = 4 sin t - sin 4t, y = 4 cos t - cos 4t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Give the center and radius of the circle. Then sketch its graph.(x + 3)2 + (y + 2)2 = 9
A. center (- 3, - 2), r = 3
B. center (- 3, 2), r = 3
C. center (3, 2), r = 3
D. center (3, - 2), r = 3
Solve for x.
= 28
A. 1 B. 0 C. 2 D. -1