Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
3)

4)

5)

Answer:
There are <u>77</u><u> girls</u> in the class when there are 49 boys.
Answer:
i think your question might be incomplete. the necessary part of the question seems to be missing.
Answer:
D) 73.5º
Step-by-step explanation:
Law of sines
sinQ/15 =sin50.1/12
multiply both sides by 15
sinQ = sin50.1/12 * 15
sinQ = 0.958956439769124
Q = arcsin0.958956439769124
Q = 73.5º
Step-by-step explanation:
Triangle XYZ is isosceles.
Since Angle Y = 90°, Angle Z = (180° - 90°)/2 = 45°.