Who is the best jojo of the 5

#12 find the value of x. #13 find the value of the variable.

Which of the following of the following sets of side lengths could not form a triangle?

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)