If a1 = 9 and an = 3an -1 what is the value of a5

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)

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Someone me what is the area of this figure? 18m 18m 8m 16m