989571
Description
Quiz by Harmony Richman, updated more than 1 year ago
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Created by Harmony Richman
over 10 years ago
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Question 1
Answer
-
9 ; 1
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-9 ; 4
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10 ; 3
Question 2
Question
Solve x^2 + 13 = 4x by using the quadratic formula.
Answer
-
2 + 3i 2 - 3i
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4 + 6i 4 - 6i
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5 ; -1
Question 3
Question
The discriminant of 2x^2 + 3x + 1 = 0 is -2
Answer
-
True
-
False
Question 4
Question
2x^2 + 3x + 1 = 0 has 2 REAL solutions.
Answer
-
True
-
False
Question 5
Question
Solve 6x^2 - 13x - 8 = 0 by factoring.
Answer
-
x = 1/2; x = -8/3
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x = -1/2; x = 8/3
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x = 1; x = 3
Question 6
Question
Solve: 4 - 5x = 3x + 14
Answer
-
x = -5/2
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x = 5/4
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x = -5/4
Question 7
Question
Solve: - 2x + 7 < 5x + 1
Answer
-
x > 6/7
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x < 6/7
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x > - 6/7
Question 8
Question
The length of a rectangle is 9 feet less than twice the width. The perimeter is 54 ft, find the width and length.
Answer
-
w = 12 l = 15
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w = 9 l = 36
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w = 6 l = 42
Question 9
Question
Force, f, is directly proportional to the acceleration, a. If a force of 10 pounds produces an acceleration of 2 feet per second, what will be produced by a 15- pound force?
The acceleration for a 15-pound force is 3 feet per second.
Answer
- True
- False
Question 10
Question
The number of MP3 players a company can sell is inversely proportional to the price of the player. If 5000 MP3 players can be sold when the prices is $150, how many players can be sold if the price is $125?
Answer
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33.333
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750000
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6000
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