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BartSMP [9]
4 years ago
9

0.00216140848x^2-.43046552x+315.0091012= 315.00910 solve this equation

Mathematics
2 answers:
kondor19780726 [428]4 years ago
5 0

The answer is 199.198.

exis [7]4 years ago
5 0

Answer: x = {199.28959,  0.00000278768}

<u>Step by step explanation:</u>

0.00216140848x² - 0.43046552x + 0.0000012=0

x = \frac{-b +/- \sqrt{b^{2}- 4ac} }{2a}

x = \frac{-(-0.43046552) +/- \sqrt{-0.43046552^{2}- 4(0.00216140848)(0.0000012)} }{2(0.00216140848)}

You can do each step manually or use a quadratic calculator to do the calculations.

x = 199.28959, x = 0.00000278768


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3 years ago
Which statements are true based on the diagram? Check all that apply.
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First statement: False. Points K, M and N form a triangle.
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3 years ago
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Now that you have the price for 1 hour including the initial fee, now you need to find the price for each hour after that. Here's how I did that:

I created a graph that looked like this:

Hours:       1                 2                  3               
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Here's how I figured out the price for each hour:

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Hour 1 (including initial price):
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Hour 2 (excluding initial price): Only add the hourly price after Hour 1!
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Hour 1 (including initial price):
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I hope I was able to help you! :)
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