Answer:
y = ± 15
Step-by-step explanation:
Given
y² = 225 ( take the square root of both sides )
= ±
y = ± 15
That is y = 15, y = - 15
Since 15 × 15 = 225 and - 15 × - 15 = 225
An irrational number is one with a fraction.
Answer:
5
Step-by-step explanation:
the answer is 5 because it sounds good
(x+20)/2 = 3x
x+20 = 6x
6x - x = 20
5x = 20
x = 4
The answer you are looking for is X = 21.
Since supplementary angles equal 180, you'd first need to subtract 48 from 180. This gives you 132. Next, you'd divide 132 by 6 to get 22. Since x is in the parenthesis with "+ 1", you'd subtract 1 to give you x (21).
I hope this helps!