You are filling a 5-L fish tank using a 250-mL container. How many full containers are required to fill the fish tank?
2 answers:
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For the function 
We can use the formula for the axis of symetry, which is
With the values substituted, we get...
Therefore the axis of symmetry is
We can use the formula for the axis of symetry, which is
With the values substituted, we get...
Therefore the axis of symmetry is
For the square with side length n, the diagonal measures:
The sidelength of the square is n, and we want to get the length of the diagonal d.
Notice that the diagonal is the hypotenuse of a right triangle whose catheti measure n.
Then we can use the Pythagorean theorem, which says that the square of the hypotenuse is equal to the sum of the squares of the cathetus;
That is the length of the diagonal.
If you want to learn more about right triangles:
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