3 years ago

How many squares of all sizes are there in the 3 by 3 square shown next?

1 answer:

5 0

There are 9 unit squares, 4 2x2 squares, and 1 3x3 square, for a total of 14.

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Nostrana [21]

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Step-by-step explanation:

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Greeley [361]

Answer:

a straight line: y = x -5, with a hole at (4, -1)

Step-by-step explanation:

The rational function can be simplified to ...

$f(x)=\dfrac{x^2-9x+20}{x-4}=\dfrac{(x-5)(x-4)}{(x-4)}\\\\f(x)=x-5\qquad\text{$x\ne 4$}$

The graph of this is a straight line, with a hole at x=4, where the function is not defined.

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