<u>Answer:</u>
The correct answer option is C. 12/13.
<u>Step-by-step explanation:</u>
We are given a right angled triangle with two known sides and we are to find the measure of the angle O.
For finding the measure of O, we will use sine for which we need to find the value of the value of the hypotenuse (MO).

Now that we know the length of the hypotenuse, we can find sin (O).

Therefore, the correct answer option is C. 12/13.
In ∆ ABC and ∆ADC
AB=AD
AC=AC(common side)
BC=DC
So, ∆ABC and ∆ADC are congruent triangles,
so, m<ABC= m<ADC(corresponding angles of the congruent triangles)
x= 97°
Answer:
B
Step-by-step explanation:
15+15=30
30/9=3 r3 doesn't work
30+15=45
45/9=5
(-1, 5) because if you plug in -1 to both equations, you should get 5 from both equations. They also cross at that point, making that the solution.