Question about SoftMath Algebrator - Algebra Homework Solver (689076614429)
Learn to live with the particularities of the software you are using. If you do not like what it does, use another one more likable to you, or better still create your own.
As to mathematics, the best way to learn it is with pen and pencil, leaving the pain of repetitive tasks to the electronic brain of a calculator.
The question is why do you persist in trying to remove the multiplication symbol after you found out that the software requires it.? It is perfectly correct to have it there if you mean to multiply. Yes!! It is not absolutely necessary, but if the software wants it leave it, and spare yourself some grief.
Posted on Jan 22, 2012
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Posted on Jan 02, 2017
You should checkout Bitesize revision:
To summarise - Pythagoras works with right angled triangles only (with one 90 degree angle). One side is always bigger than the other two - it's always the one opposite the 90 degrees.
The long side (hypotenuse) times by itself is the same as if you times-ed the other sides by themselves and added them together.
In your question, you're trying to find the across (which you guess as 12?).
The diagonal (14) is opposite the right angle so it's the biggest (and equal to the other two). We'll call across a, we don't know what it is.
14 * 14 = (7.5 * 7.5) + (a * a)
(14 * 14) - (7.5 * 7.5) = (a * a)
Type that bit on the left into a calculator (you might need to do it in parts - work out 14 * 14 and write it down...). Once you've got the answer you need to use the square root button to find out what a is.
Posted on May 06, 2009
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