test #1 notes bring a calculator that has a square root function no cell phones no notes closed book...
TRANSCRIPT
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Test #1 Notes
• Bring a calculator that has a square root function
• No Cell Phones
• No Notes
• Closed Book
• Pythagorean Theorem & Quadratic Formula will be provided
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200
300 300
400
500
300
100
300
400
500
100
200
500
100
SimplifyFOIL
&Factor
RationalExpressions
Solve for x Applications
100100
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324x ySimplify.
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6 364x ySolution:
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13 3
27
x
Simplify.
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3
xSolution:
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1
2( 2) 1
xx x
x Simplify.
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23 2 1x x Solution:
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(2 3)( 7)x x FOIL.
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22 17 21x x Solution:
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3( )( 6 2)
2x x FOIL.
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Solution: 26 7 3x x
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24 7 2x x Factor.
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( 2)(4 1)x x Solution:
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( 2 )( )2
aax b bx
FOIL and Simplify.
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22 22
2
aabx b x ab
Solution:
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2
1 3
x
x x
Subtract.
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2 2
( 1)( 3)
x x
x x
Solution:
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2
2
( 1) 2 3
x
x x x
Add.
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2 3 2
( 1)( 3)
x x
x x
Solution:
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1 23 2
6x x Solve for x.
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4
3x Solution:
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3 13
2 2x
x Solve for x.
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13,
2x x Solution:
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2 4 3x Solve for x.
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65
4Solution:
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12 3 5
4x Solve for x.
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10, 6x x Solution:
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The plane is traveling at 500km/hr directly into a wind that is constant at 80km/hr.
A person is walking toward the front of an airplane at 1.5 km/hr relative to the plane.
What is the rate of the person with respect to the ground?
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Solution: 500 + 1.5 - 80 = 421.5 km/hr
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Turtle and Hare begin a race at the same time. Turtle strolls at 0.1 m/s for 10 hrs. Hare runs at 0.8 m/s for 0.5 hr, rests for 9 hrs, and finishes with a 0.5 hr run at .6 m/s.
Who is the winner?
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Turtle and Rabbit begin a race at the same time. Turtle strolls at 0.1 m/s for 10 hrs. Rabbit runs at 0.8 m/s for 0.5 hr, rests for 9 hrs, and finishes with a 0.5 hr run at 0.6 m/s.
DT = rate * time = 0.1 * 10(3600) = 3600 m
DR = rate * time = 0.8 * 1(1800) + 0.6 * 1(1800) = 2520 m
Turtle is the winner.
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Test #1 Study Aids
• Test #1 Review wiki (solutions on web)
• Supplemental Problems (solutions on web)
• Jeopardy
• Notes & Quizzes
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Find an expression for c in terms of a.
The only right angles in the drawing are the two that are shown.
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Solution:
22 100a