Answer:
-19/248
Step-by-step explanation:
5.79
3.99 x .45 = 1.7955 = 1.80
3.99 + 1.80 = 5.79
its terminating because as you can see there isn't any numbers that are ongoing
Cos30 = square root of 3/2=0.8660
The cos of 60 is the sin of 30 n vice versa.
U can use the unit circle for this too
Angle B is 67 degrees. The definition of similar triangles gives us that the corresponding angles are equal. Angle E in the second triangle corresponds to angle A in the first triangle, ∠A=∠E=61 degrees. The sum of the internal angles of Triangle ABC is 180 degrees, so <span>∠B=180-61-52=67 degrees.</span>