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Gwar [14]
4 years ago
9

Using the quadratic formula to solve x? + 20 = 2x, what are the values of x?

Mathematics
1 answer:
Sergio [31]4 years ago
6 0
I am not sure if the “+” was supposed to go there or if that was just a typo, so I do apologize if this is wrong... but if it doesn’t belong in the equation at all, 20 = 2X is a fairly simply multiplication problem. You are to divide both sides by the 2 and you should get X = 10, because 2 goes into 20, 10 times; and the 2 goes into 2 only once, therefore the 2 now gets cancelled out.

Answer: 20 divided by 2 = 2x divided by 2 is now 10 = X.

Really hope this helps you, have a good day :)
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1. The computation of range of the sample data is shown below:-

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= 42 - 12.6

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2. For the computation of variance of the sample data first, we need to find out the mean which is shown below:-

Mean = \frac{(42 + 40 + 39 + 32 + 21 + 18 + 16 + 14 + 13.7 + 12.6)  }{10}

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3. The computation of the standard deviation of the sample data is shown below:-

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