Question

Quick Math problem okay ​

Answer 1

See below.

Explanation:

For this problem, we are asked to find m∠Y.

We can't identify m∠Y yet, we have to solve for x.

We should know that this triangle has both legs equal to each other, meaning that it's an isosceles triangle. Because it's isosceles, the 2 angles are equal.

Set the angles equal to each other;

`5x+6=8x-15`

Subtract 6 from both sides;

`5x=8x-21`

Subtract 8x from both sides;

`-3x=-21\\x=7`

Substitute 7 back into the 2 angles.

`5(7)+6=41\\8(7)-15=41`

We should know that a triangles' angles add up to 180°. By subtracting the 2 angles' values from 180°, we can find m∠Y.

`180-41-41=98`

Our final answer is C. m∠Y = 98°