4) Find m of angle KLH
A) 20°
C) 27°
B) 28°
D) -4°

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)