4 years ago

How to find square feet

Mathematics

1 answer:

ad-work [718]4 years ago

7 0

Answer:

It depends on the shape

Step-by-step explanation:

For a rectangle: length x height

For a triangle: base x height, then divide the answer by 2

For a circle: π x (diameter / 2)^2

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Please solve with explanation (high points)

IgorLugansk [536]

So, we know that:

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We also know that $(a+b)^2=a^2+2ab+b^2$ . We will use that fact to find $c$ in terms of $A$ and $P$ .

$A=\dfrac{1}{2}ab\Rightarrow 2ab=4A\\P=a+b+c\Rightarrow a+b=P-c$

Therefore:

$(P-c)^2=c^2+4A\\P^2-2cP+c^2=c^2+4a\\2cP=P^2-4A\\c=\dfrac{P^2-4A}{2P}$

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3 years ago

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GrogVix [38]

The ? is 1.

7*(9*1)=63

Hope this helps!!

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4 years ago

Solve this and please try to explain also

olchik [2.2K]

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3 years ago

Determine which system below will produce infinitely many solutions.

mariarad [96]

A system that will produce infinitely many solutions will have the property where all the equations overlap. That means they will have the same slope and y-intercept.

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