Pre Calculus Pre-‐quiz 9.4-‐9.7 Name_____________________________ hr__________ 1) Use mathematical induction to prove the following formula: Sn = 1 + 2 + 3 + 4 + …. + n =
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2) Evaluate
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3) Use Pascal’s Triangle to find the coefficient of each term: a) x2y6 in binomial ( x + y ) 8 b) a7b4 in binomial ( a + b ) 11 4) Use the Binomial Theorem to expand. a. ( x + 2 )4 = b. ( y – 3) 5 = 5) Find the term involving x4 in ( x – 3 )9
6) Find the coefficient of the term in x7y5 in binomial ( 2x + 3y) 12 7) New York license plates have 2 numbers followed by 4 letters. How many different license plates are possible?
8) Evaluate 20P3 9) How many ways different batting orders can be made with 9 baseball players? 10) How many ways can the letters in PARALLEL be written? 11) How many ways can 20 cars in the Indy 500 race finish first, second, third, fourth, and fifth? 12) Fifteen applicants applied to the fraternity house. The fraternity will take four of them. How many ways can they be selected? 13) Two six-‐sided dice are tossed. Find the probability that the sum of the two dice is seven. 14) What is the probability of selecting a Heart from a deck of cards ( 52 cards) and rolling a 3 or 4 on a die. 15) Three cards are selected at random from a deck of 52 playing cards without replacement. Find the probability that the first card is a Club, the second card is Spade and the second card is a red ten. 16) Use the formula for the sum of powers of integers to find the sum: 12 + 22 + 32 +….+ 152 17) Find the sum using the formulas for the sum of powers of integers. !!
11) How many ways can 20 cars in the Indy 500 race finish first, second, third, fourth, and fifth? 12) Fifteen applicants applied to the fraternity house. The fraternity will take four of them. How many ways can they be selected? 13) Two six-âsided dice are tossed. Find the probability that the sum of the two dice is seven.
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Name____________________________________________. Pre-Lab Due Date__________. Lab # ______. Due Date________. Hypothesis A: How do you expect your pulse rate to change after exercising? Explain your reasoning.
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