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2 years ago

Pls help Equation = x2-2x-3=0

Mathematics

1 answer:

vagabundo [1.1K]2 years ago

5 0

Answer:

x^2 - 2x - 15 = 0.

Step-by-step explanation:

x^2 - 2x - 3 = 0

(x - 3)(x + 1) = 0

So alpha and beta are -1 and 3.

So the roots of the required equation are 2(-1)-1 and 2(3) - 1

= -3, 5.

So the equation is

(x - 5)(x + 3) = 0

-that is x^2 - 2x - 15 = 0

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Data Set #1

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Answer:

The data table is attached below.

Step-by-step explanation:

The average of a set of data is the value that is a representative of the entire data set.

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$\bar x=\frac{1}{n}\sum\limits^{n}_{i=1}{x_{i}}$

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Compute the average for drop 4 as follows:

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