1. 4/11 Adv. Alg/Trig Bell Ringer
ON A SHEET OF NOTEBOOK PAPER
This is #6 from Fri
A company earned a profit of $8.0 million each year for 3 consecutive years. For each of the next 2 years the company earned a profit of $9.0 million. For this 5-year period, what was the company’s average yearly profit, in millions of dollars?
A B C. 8.4
D. 8.5 E. 8.6
This is #8 from Fri
Kalino earned 85, 95, 93, and 80 points on the 4 tests, each worth 100 points, given so far this term. How many points must he earn on his fifth test, also worth 100 points, to average 90 points for the 5 tests given this term?
A. 87 B. 88 C. 90
D. 92 E. 97

2. Review # 11?
Susan recorded the number of customers visiting her bookstore each day for five days, as shown in the table below. What was the average number of customers for these five days? 48 50 53 55 56

3. 4/11 News and Notes Perfection Award: 8th Period HW Checked? MVPs
2nd: OSCAR
4th: EMMANUEL

4. This week: Today: Properties of Exponents
Tuesday: Mr. C doing IB Evaluations, class works on 20 ACT Questions.
Wednesday: Area and Perimeter
Thursday: Angle relationships
Spring Break ACT with solutions handed out.
Friday: Sub, because Mr. C is off to EUROPE!!!  20 more ACT Questions

5. Quick Examples
x3(x2)
= x3+2 = x5
= x3*2 = x6 3.
= x3-2 = x1 = x

6. Example #1
Simplify:
12/3 = 4
X4/x2 = x4-2 = x2
Y7/y7 = y7-7 = y0 = 1

7. Example #2 What is the sum of (3x2 + 2x + 4) and (4x3 + 2x2 – x – 7)?
Sum means ADD
(3x2 + 2x + 4) + (4x3 + 2x2 – x – 7) =
4x3 + 3x2 + 2x2 + 2x – x + 4 – 7 =
4x3 + 5x2 + x – 3

8. Reminder about tomorrow
Sub should give you 20 ACT problems with solutions. Work through them together!