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Rom4ik [11]
1 year ago
12

F(x)=3x square + x f(-5)

Mathematics
1 answer:
KatRina [158]1 year ago
8 0

Answer:

If you need the answer as f by simplifying both sides of the equation and then isolating the variable, the answer would be:

xf=\frac{3x^2}{5}-\frac{f(x)}{5}

Or, if you need to evaluate the function itself, the answer would be:

f(x)=3x^2-5xf

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Using the discriminant, how many real number solutions does this equation have? 3x^2 – 2 = 5x
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The discriminant of this equation is 49. The solutions for this equation are x=2 and x=-\frac{1}{3}
I hope that helps.
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Tripp and Rico are two dogs. Tripp weighs exactly 35 pounds more than Rico. Together, they weigh exactly 49 pounds. How much doe
babymother [125]
Call the weights of the two dogs t and r.

We know that Tripp weights 35lbs more than Rico, or:
t=r+35

We also know that the total weight of both dogs is 49lbs.:
t+r=49

Now, by substitution:
(r+35)+r=49
2r+35=49
2r+35-35=49-35
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Then:
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t=7+35
t=42
Tripp weighs 42lbs.

To check our work:
t+r=49
42+7=49
49=49  CHECK!
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