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1. |
Ten points are located on a circle. How many line segments can be drawn with these points as endpoints? |
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A. |
45 |
B. |
100 |
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C. |
90 |
D. |
10 |
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Hint |
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2. |
Find the value of C(13, 2). |
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A. |
66 |
B. |
78 |
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C. |
13 |
D. |
156 |
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Hint |
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3. |
How many different groups of 3 crayons can be chosen from a box of 64? |
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A. |
43,680 |
B. |
41,664 |
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C. |
83,328 |
D. |
192 |
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Hint |
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4. |
Eight points are located on a circle. How many line segments can be drawn with these points as endpoints? |
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A. |
4 |
B. |
28 |
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C. |
56 |
D. |
16 |
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Hint |
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5. |
There are 23 students in Mr. Blackwell’s science class. Five students are picked to talk to the elementary students who will be coming to the middle school next year. Does this represent a combination or a permutation? How many ways can the students be chosen? |
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A. |
permutation; 4,037,880 |
B. |
combination; 4,037,880 ways |
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C. |
combination; 33,649 ways |
D. |
permutation; 33,649 ways |
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Hint |
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