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brilliants [131]
3 years ago
13

Select all of the following that are quadratic equations.

Mathematics
1 answer:
kifflom [539]3 years ago
5 0
A quadratic equation is one in which the highest exponent of x is 2.
7x^2+14x=0 is quadratic; the highest exponent is 2.
x³-3x²+1=0 is NOT quadratic.  The highest exponent of x is 3, not 2.
5x-7=0 is NOT quadratic.  The highest exponent of x is 1, not 2.
x²+3x-5=0 is quadratic; the highest exponent of x is 2.
x-5=9x+7 is NOT quadratic.  The highest exponent of x is 1, not 2.
x²-x=3x+7 is quadratic; the highest exponent of x is 2.
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(2x+3)*4 is less than or equal to 10. For x, the number, you would get x is greater than or equal to -1/4.
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What is the answer to this problem?
zepelin [54]

Answer:

36

Step-by-step explanation:

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Eight more than four times a number is -12 eauation
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The function C(x) = 25x + 50 represents the labor cost (in dollars) for Certified Remodeling to build a deck, where x is
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Step-by-step explanation:

<em>Original question is attached</em>

<h3>Option 1</h3>
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<h3>Option 2</h3>
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3 years ago
8. Daren and Josh are pretty good free throw shooters. Daren makes 75% of the
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Answer:

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Step-by-step explanation:

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