The probability that you can randomly select a red marble from a group of 40 marbles is 720 how many red marbles are there
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The <span>Pythagorean Theorem tells us that 
where c is the </span><span>hypotenuse and a and b are the other two sides. To solve for one of the shorter sides we need to rearrange:
We can then substitute known values, and solve:
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We can then substitute known values, and solve:
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