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Lady_Fox [76]
3 years ago
9

NEED HELP NOW!! FOR MATH 10PTS

Mathematics
1 answer:
meriva3 years ago
4 0

Answer:

a)

Step-by-step explanation:

Cost function = revenue function - profit function

   = -0.3x² + 150x - [-0.5x² + 250x - 300]

   = -0.3x² + 150x + 0.5x² - 250x +300

  = -0.3x² + 0.5x² + 150x - 250x + 300   {Combine like terms}

  = 0.2x² - 100x + 300

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if twice the opposite of a number us increased by 5, the result is the opposite of the number. What is the number?
Likurg_2 [28]

Answer:

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The asiest way to solve this is the guess and check method. It is asking you what a number doubled then by adding five is the opposite of that number. Now go through a few SINGLE digit numbers to try and solve. I hope this helps.

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Charra [1.4K]

Answer:  -418, 728, 446, -429, 1159, -696

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alekssr [168]

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Step-by-step explanation:

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