A triangle with angles of 20, 80, and 80 is an isosceles
In a triangle, the three interior angles always add to 180°
m∠B = 180 - 30 - 80 = 70°
<span>D: 70</span>
2/5 * 4/7 = 8/35
All you do is 2*4=8
And 5*7=35
So your answer is 8/35
Well the SQRT and the ^2 cancel out on the R's so y=1 is whats left over
Answer:

<em>(None of the answer choices you've provided match the correct answer.)</em>
Step-by-step explanation:
Given:

To find the solution (what
equals), we must divide both sides of the equation by the coefficient of

Therefore, the solution of
is
.
-
We can check our work by substituting the solved value of
into the given equation:



Since both sides of the equation are equal to each other, our solution is correct!