Which answer shows 0.05 written in scientific notation?

3(10x-y)-5(x-y^2) need this solved asap

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)

What is not true about kl and mn? what is mn? (show )