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WARRIOR [948]
4 years ago
7

If f(x) = - 2x^2 + 2x - 3, what is f(5)?

Mathematics
1 answer:
Sonja [21]4 years ago
4 0

Answer:

-2(5)^2 + 2(5) - 3

-2(25) + 10 - 3

-50 + 10 - 3

-53 + 10

-43

Step-by-step explanation:

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How many fluid ounces are in 3 pints?
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Read 2 more answers
I need help solving this pls
Oksana_A [137]

Answer:

Adding them together. x = 3/2, y = 8

Step-by-step explanation:

Adding because we want to get rid of a variable. If we add, 2x + 6x = 8x, 1/2 * y + (-1/2 * y) = 0, and 7 + 5 = 12. Adding gets rid of the y variable.

By adding we get that 8x = 12 which gives us x = 12/8 = 3/2

Substituting this back into either equation will give us y = 8.

8 0
3 years ago
Can someone please explain to me how to solve this equation?
Nikolay [14]

Answer:

first of all erase what u have written

Step-by-step explanation:

<h2>Q: 25-(3x+5)=2(x+8)+x</h2>
  • 25-3x-5=2x+16+x
  • 20-6x=16
  • 6x=4
  • x=2/3
6 0
3 years ago
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