Feb.4

Today:2nd Quarter Grades

Warm-UpReview Final Exam

Review Exponents/Sci. Notation

Intro. to MonomialsClass Work

Warm-Up1. Number Sense: How many revolutions does a tire make in one mile?The

speed?Up or

Downhill?Tire

Size? This?

Or this?

15 " Rims

1 revolution ≈ 4 feet = 1,320 revs.

Warm-Up2. Number Sense: How much does a gallon of water weigh? 8. 6 Pounds3. On one test you get 9 of 10 questions correct and on another test you answer 3 of 5 correct. What is your average score?

80 %

4. (12) -5 • (12) 3 -5 + 3 = -2; (12)-2 = 1/12

2 = 1/1445. 42 •

35 • 24

43 • 35 • 22

= 22

4 = 16. Simplify: 5b •

6a4 a c

= 30ba4 c

Final Exam Review:Estimated Yearly Repair Cost

$450$570

•Tony will Drive an average of 200 miles per month•The average cost of gasoline will be $5.00 per gallon1. If Mike buys car A, how much will he spend in gas

per year? A. $2400 B. $2000 C. $600 D. $120 E. None2. What is the total cost of repairs and gas for the 4 years if Mike buys car B?A. $5600 B. $3000 C. $2400 D. $3800 E. None 3. If Mike buys car A, what percent of the purchase price will he have spent on gas and repairs after 4 years? A. 75% B. 110% C. 55% D. 90%

E. None

Final Exam Review:4. Mrs. Wright rents a car to see her friend Mrs. Wong. The cost is $32.00 plus $.75 a mile. The trip is 45 miles each way.

What is the total cost for Wright to see Wong?

A. $32.75 B. $99.50 C. $75.00 D. $65.75 E. None5. What is the slope of the line 4y + 3

= 2/5x A. 2 B. ⅟10 C. ⅟5 D. ⅓ E. None

Practice Problem Section of Notebook:

Scientific Notation & Exponent Review

Scientific Notation

Scientific Notation

Scientific Notation

Scientific Notation

Example 1:

Step 1:

Negative and Zero Exponents

Step 2:

Step 3:

Step 4:

Negative and Zero Exponents

Step 5:

Step 6-7:

Negative and Zero Exponents

1.

Practice Problems

2.

3.

Practice Problems

Monomials

Definition: Mono-- The prefix means one. A monomial is an expression with one

term.In the equations unit, we said that terms were

separated by a plus sign or a minus sign!

Therefore:A monomial CANNOT contain a plus sign (+)

or a minus (-) sign!

MonomialsExamples of Monomials:

Multiplying Monomials

When you multiply monomials, you will need to perform two steps:

•Multiply the coefficients (constants)•Multiply the variables

A simple problem would be: (3x2)(4x4)And the answer is:

12x6 Remember, the bases are the same, so you add the exponents

Multiplying Monomials: Practice Problems

Multiplying Monomials: Practice Problems

Multiplying Monomials