Which equation should be used to calculate the speed of a wave? speed = frequency x wavelength
speed = frequency x hertz
speed = period x wavelength
speed = period x hertz

Explanation:

Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed is related to wavelength and wave frequency by the equation: Speed = Wavelength x Frequency. This equation can be used to calculate wave speed when wavelength and frequency are known.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer