grade scale test 1 results: average class score after partial credit: xx.x% commonly missed...
TRANSCRIPT
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Grade Scale
Test 1 Results:• Average class score after partial credit: XX.X%
• Commonly missed questions: # _________________
All of this material will be tested again on the final exam, so please make sure you go over the problems you missed with a teacher or TA.
Grade A A- B+ B B- C+ C C- F
Points ≥ 925 ≥ 900 ≥ 875 ≥ 825 ≥ 800 ≥ 775 ≥ 725 ≥ 700 < 700
% Score ≥ 92.5 ≥ 90 ≥ 87.5 ≥ 82.5 ≥ 80 ≥ 77.5 ≥ 72.5 ≥70 < 70
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The Home Stretch:Final topic: 5 sections from Chapter 5 on exponents and polynomialsNext quiz: Quiz 3 on sections 5.1-5.4 and 5.6Last two classes: Two in-class review sessions for the final, with two 25-point review homework assignments.Final Exam: Comprehensive, 200 points, during evaluation week.Check your syllabus to find the date and time of the final exam for this section.If you haven’t passed the Gateway yet, make sure you take it this week.
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• Wednesdays– 10:10 am– 11:15 am
• Thursdays– 10:10 am– 11:15 pm
Gateway Quiz Retake Times(One new attempt allowed per week, beginning November 2)
SIGN UP IN THE MATH TLC OPEN LAB!If NONE of the above times work for you…
email Krystle Mayer, Math TLC Coordinator (JHSW 201), to set up a date and time.
• Mondays– 1:25 pm– 2:30 pm
• Tuesdays– 1:25 pm– 3:35 pm
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Please
CLOSE
YOUR LAPTOPS,and turn off and put away your
cell phones,
and get out your note-taking materials.
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Section 5.1: Working with Exponents
• Exponents that are natural numbers are shorthand notation for repeating factors.• 34 = 3 • 3 • 3 • 3• 3 is the base• 4 is the exponent (also called power)
• Note, by the order of operations, exponents are calculated before all other operations, except parentheses.
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Evaluate each of the following expressions.
Example
34 = 3 • 3 • 3 • 3 = 81
(-5)2 = (-5)(-5) = 25
-62 = -(6)(6) = -36
(2 • 4)3 = (2 • 4)(2 • 4)(2 • 4) = 8 • 8 • 8 = 512
3 • 42 = 3 • 4 • 4 = 48
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Example from today’s homework:
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Example from today’s homework:
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Evaluate the following expressions.Find 3x2 when x = 5.
Example
Find -2x2 when x = -1.
3x2 = 3(5)2 = 3(5 • 5) = 3 • 25
-2x2 = -2(-1)2 = -2(-1 • -1) = -2(1)
= 75
= -2
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Example from today’s homework:
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Product Rule (applies to common bases only)am • an = am+n
Simplify each of the following expressions.
Example
32 • 34 = 36 = 3 • 3 • 3 • 3 • 3 • 3 = 729
x4 • x5 = x4+5
z3 • z2 • z5 = z3+2+5
(3y2)(-4y4) = 3 • y2 • -4 • y4 = (3 • -4)(y2 • y4) = -12y6
= 32+4
= x9
= z10
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Example from today’s homework:
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Power Rule(am)n = amn
Example
Simplify each of the following expressions.
(23)3 = 29 = 512
(x4)2 = x8
= 23•3
= x4•2
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Example from today’s homework:
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Power of a Product Rule(ab)n = an • bn
Simplify (5x2y)3
Example
= 53 • (x2)3 • y3 = 125x6 y3
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Example from today’s homework:
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Power of a Quotient Rule
0
b
b
a
b
an
nn
Example
Simplify the following expression.4
3
2
3
r
p 43
42
3r
p
434
42
3 r
p
(Power of product rule in this step)
12
8
81r
p
(Power rule in this step)
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Example from today’s homework:
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Quotient Rule (applies to common bases only)
0
a
aa
a nmn
m
Example
2
74
3
9
ab
ba533 ba
Simplify the following expression.
))((3 2714 ba
2
74
3
9
b
b
a
a
Group common bases together
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Example from today’s homework:
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Zero exponenta0 = 1, a 0
Note: 00 is undefined.
Simplify each of the following expressions.
50
Example
= 1(xyz3)0 = x0 • y0 • (z3)0 = 1 • 1 • 1 = 1
-x0 = -(x0) = -1
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Example from today’s homework:
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Example from today’s homework:
01
Now simplify 2
Answer = 1
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• Wednesdays– 10:10 am– 11:15 am
• Thursdays– 10:10 am– 11:15 pm
Gateway Quiz Retake Times(One new attempt allowed per week, beginning November 2)
SIGN UP IN THE MATH TLC OPEN LAB!If NONE of the above times work for you…
email Krystle Mayer, Math TLC Coordinator (JHSW 201), to set up a date and time.
• Mondays– 1:25 pm– 2:30 pm
• Tuesdays– 1:25 pm– 3:35 pm
![Page 25: Grade Scale Test 1 Results: Average class score after partial credit: XX.X% Commonly missed questions: # _________________ All of this material will be](https://reader035.vdocument.in/reader035/viewer/2022070413/5697bfee1a28abf838cb975c/html5/thumbnails/25.jpg)
You may now OPEN
your LAPTOPSand begin working on the
homework assignment.