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arod20061
02.04.2020 •
Mathematics
I need help with this
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Ответ:
Your answer would be option A, 3.
Step-by-step explanation:
You use the slope equation![\frac{y2-y1}{x2-x1}](/tpl/images/0578/2944/71a0a.png)
So it would look like
, which is
, which reduces to 3.
Ответ:
Using the geometric mean concept, it is found that the value of a is 18.
----------------------
The geometric mean, of a data-set of n elements,
, is given by:
That is, the nth root of the multiplication of all elements.
----------------------
In this question:
Two elements(n = 2), a and 34.Thus:
We find the square of each side, so:
Simplifying both sides by 17:
The value of a is 18.
A similar example is given at