It is 13 because 13*13*13 = 2197
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Image result for How do you get the square root of a certain number? How to find the square root of a number and calculate it by hand STEP 1: Separate The Digits Into Pairs. To begin, let's organize the workspace. ... STEP 2: Find The Largest Integer. ... STEP 3: Now Subtract That Integer. ... STEP 4: Let's Move To The Next Pair. ... STEP 5: Find The Right Match. ... STEP 6: Subtract Again.
(a + b)3 = a3 + 3a2b + 3ab2 + b3
Correction: the problem is Tan(30)= x/ 7.5 root 2
Starting with the root of the scale, the pattern is whole-step, whole-step, half-step, whole-step, whole-step, whole-step, half-step.
First divide the area by pi which you either get by using the pi symbol on a calculator, or by using 3.14159265. Then take the square root of the answer you get from the first step and this is your radius.