Need help!!! Which trigonometric function has 6 x-intercepts over the interval (0,2π]?
f(x)=3cos(x)+6
f(x)=4cos(3x)+2
f(x)=6sin(2x)+3
f(x)=3sin(6x)+4

This doesn’t make sense to me it’s supposed to be lcm ( least common multiple )

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 number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year