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Arithmetic
Or
Geometric?
Expand This!
Learn to
Count
What are the
Odds?
Pot Pourri
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5 pt
Determine whether the sequence is
Arithmetic or Geometric. List d or r.
6, 4, 2, 0, -2, …
Arithmetic
d= -2
Given an = -4n + 13,
Find a17
-55
Write a recursive definition for the
sequence defined by 2, 6, 18, …
an=
n-1
2(3)
Use sigma notation to write the sum
of the following:
1 + 1 + 1 + …. + 1
2(1) 2(2) 2(3)
2(10)
Then find the sum

10
1
1
2n
Sum = 7381
5040
If n6=3, n9=81, find r and n1
r=3, n1=1
81
Expand (x +
4
y)
4
3
2
2
3
4
x +4x y+6x y +4xy +y
Give the third term of the expansion
of (x + 1)8
6
28x
What term contains a6b3 in the
expansion of (2a + 3b)9
th
4
term
Find the coefficient of the term that
contains a6b3 in the expansion of
(2a + 3b)9
145152
Expand
7
(x-7)
x7-49x6+1029x5 -12005x4 +84035x3
- 352947x2 +823543x -823543
A lunch consists of 3 different kinds
of salads, 3 different kinds of soup,
and 5 different drinks. How many
choices are there for lunch?
45
From a group of six boys and five
girls, two boys and three girls will be
selected to attend a conference. In
how many ways can the selection be
made?
25
Find the number of distinguishable
permutation of letters MISSISSIPPI.
34650
A bag contains 4 purple marbles and
3 white marbles. How many ways
can you draw 2 marbles?
21
Find the number of diagonals in an
octagon.
20
A card is drawn from a deck of
cards. Find the probability that it is
not a face card.
10/13
Calculus, 28 are taking French, and
12 are taking both. If a student is
picked at random, what is the
probability that the student is taking
Calculus or French?
.48
If you draw one card at random from
a deck of 15 cards numbered 1
through 15, what is the probability
that the number you draw is divisible
by 3 and odd?
1/5
If P(A) = .18, what is P(A’)
.82
blue marbles. One marble is drawn
at random and not replaced. Then a
second marble is drawn. What is the
probability that the first marble is
blue and the second is red?
2/7
Simplify the ratio:
85!
79!
3.14 x
11
10
Find the sum of the series:
1+ 1 + 1 +…
4 16 64
1/3
Find the sum of the multiples of 7
from 7 to 175
2184
Manchester has a population of
125,000 people now and the
population is increasing 3% every
year. What will be the population in
5 years?
140688
Find an explicit definition for the nth
term of the sequence 6, 11, 16, 21,
…
5n - 1