10 Mathematics- (Difficult Round )

The term when you have more than one radius.

• radii

• circle

• chord

• semicircle

An arc of a circle whose endpoints are the endpoints of a diameter.

• semicircle

• major arc

• minor arc

• circle

A letter tile is chosen at random. Find the probability of choosing the letter D.

• 2/7

• 1/9

• 3/5

• 2/9

Find the probability of rolling a 7 on a single die.

• 1/6

• 7/6

• 0

• 7/7

How many ways can a club select a president, vice president, and a secretary from a group of 5 people?

• 12

• 60

• 15

• 30

How many ways ways can you arrange the letters in the word math?

• 15

• 4

• 24

• 48

What does ₁₀P₅ mean?

• Permutations with 5 choices and 10 positions
• Permutations with 10 choices and 5 positions
• Permutations with 5 numbers and 10 operations
• Permutations with 5 hot dogs and 10 drinks

Permutation, combination, or neither?

The batting order for seven players on a 12 person team.

• combination

• permutation

• neither

• arithmetic

Find the number of words, with or without meaning, that can be formed with the letters of the word ‘CHAIR’.

• 5

• 3125

• 120

• 25

How many ways can two jellybeans be chosen from a bag of 15 unique jellybeans. 

• ₁₅C₂=105
• ₁₅P₂=210
• 15 x 2 = 30
• 100 ways