You would do 172 -8 and keep the i when you cancel the numbers out
Answer:
Because emojis can better express what you are feeling, and it's fun to use. As for fairys... I don't really know either.
Step-by-step explanation
Letters used to represent values or unknown quantities that
can change or vary. One example of an algebraic expression
is 3x – 4. Notice the variable,
Answer:
(15, 36, 39)
Step-by-step explanation:
Using pythagoreas formula: A^2 * B^2 = C^2
so a=15, b=36, c=39
15^2+36^2=39^2
Answer:15
Step-by-step explanation:
If the two sides equal 30 then you just divide that by 2 and get your answer 15