What is the value of the expression 7−3 ? 343 −1343 1343 −21

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)

Find the value of the variable and the length of each chord for #5 and #6.

Y=x+2 4x+3y= -36 system of equation