• Online HW 14 (13.3, 13.4) is due tomorrow night.

• Written HW 14 is due Thursday in class.

• Final exam: Wednesday 5/1, 10:10 AM – 12:10 PM, in this room. There is a

study guide in Blackboard.

• Log in to Learning Catalytics.

• Regular Monthly Payment (Amortized Loan): 𝑹 =𝑷(

𝒓

𝟏𝟐)

𝟏−(𝟏𝟐

𝟏𝟐+𝒓)

𝟏𝟐𝒕

Learning Catalytics

1. Susan is making monthly payments of $25 to pay off a four-year add-on interest loan

of $1000. How much does she pay over the life of this loan?

$_____________

Learning Catalytics

2. Susan is making monthly payments of $25 to pay off a four-year add-on interest loan

of $1000. Recall that she will pay a total of $1200 over the life of the loan. How much

interest will she pay?

$_____________

•

• Exam 2 will be next Thursday during class time. It will cover everything we

have covered from 10.1 – 11.5. A study guide is available in Blackboard. Please

plan to bring a calculator, a writing implement, and your WSU photo ID.

• You’ll be given these formulas.

Permutations:

)!(

!

rn

nPrn

−=

Combinations:

)!(!

!

rnr

nCrn

−=

Distinguishable

arrangements:

𝑛!

𝑛1! 𝑛2! … 𝑛𝑘!

1. A music class of five girls and four boys is having a recital. If each member is to

perform once, how many ways can the program be arranged if there are no

restrictions on the way the performers are arranged?

State your answer as a number; you will probably need a calculator.

2. A music class of five girls and four boys is having a recital. If each member is to

perform once, how many ways can the program be arranged if all the girls must

perform first?

State your answer as a number; you will probably need a calculator.

3. A music class of five girls and four boys is having a recital. If each member is to

perform once, how many ways can the program be arranged if a girl must

perform first and a boy must perform last?

State your answer as a number; you will probably need a calculator.

4. A music class of five girls and four boys is having a recital. If each member is to

perform once, how many ways can the program be arranged if Elisa (a girl)

must perform first and Doug (a boy) must perform last?

State your answer as a number; you will probably need a calculator.

5. The ten longest Broadway runs include The Phantom of the Opera and Les

Miserables. Four of the ten are chosen randomly (assume order is NOT important).

How many ways can the four productions be chosen?

State your answer as a number; you will probably need a calculator.

6. The ten longest Broadway runs include The Phantom of the Opera and Les

Miserables. Four of the ten are chosen randomly (assume order is NOT

important).

How many of those groups of four would include neither of the two productions

mentioned?

State your answer as a number; you will probably need a calculator.

7. The ten longest Broadway runs include The Phantom of the Opera and Les

Miserables. Four of the ten are chosen randomly (assume order is NOT important).

How many of those groups of four would include at least one of the two productions

mentioned?

State your answer as a number; you may or may not need a calculator.

Log in to Learning Catalytics.

• Online HW 4 is due tomorrow at 11:59 PM.

• Written HW 4 is due Thursday in class.

• Exam 1 will be this Thursday 2/7 during class time. It will cover everything we

have covered from 1.2 – 7.5. A study guide is available in Blackboard. Please

plan to bring a calculator, a writing implement, and your WSU photo ID.

1. Let U = {1, 2, 3, 4, 5, 6, 7, 8}, A = {1, 3, 5, 7}, B = {2, 4, 6, 8} and C = {2, 4}.

Which of the following statements are true? Select all that apply.

2. If A = {200, 201, 202, ..., 2000}, then n(A) = _______________.

3. If n(A) = 7, n(B) = 15 and n(A ∩ B) = 5, what is n(A ∪ B)?

n(A ∪ B) = _________________

4. Which of the following statements are true? Select all that apply.

• Log in to Learning Catalytics (Blackboard → MyMathLab Course Home →

Join Session in Progress).

• There will be a Learning Catalytics session towards the end of class today. If

you want to log in to MyMathLab now you can do that, and then when we start

you can join that session. (There is not a session running yet).

•

• We will review in class on Tuesday. If there are any specific questions/topics you

would like to see at the review, please email me no later than Monday afternoon.