# Tutor profile: Robert M.

## Questions

### Subject: Trigonometry

What are the possible lengths of the third side of a triangle whose two sides are 5 and 7

first, take the difference between the number 7 - 5 = 2 then take the sum of the 2 numbers 5 + 7 = 12 the third side has a length between 2 and 12 but not equal to 2 or 12

### Subject: Pre-Algebra

Find the prime factors of 32

Well lets break down 32 into its multiples: 32= 2 x 16 (2 is prime) now 16 = 2 x 8 (2 is prime) now 8 = 2 x 4 (2 is prime) 4 = 2x2 2 and 2 is prime therefore 32 = 2x2x2x2x2

### Subject: Algebra

Explain x/0 = undefined

Well let's look at $1 / 1 = 1 $1 / .50 = 2 $1/ .25 = 4 $1 / .10 = 10 $1 / .05 = 20 $1 / .01 = 100 you can see that as the divisor gets smaller (closer to zero), the result gets larger. imagine dividing by the smallest number you can think of. The result will get so big that we say it is reaching infinity. Since infinity is hard to define, we call the result UNDEFINED.

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