A wave has a speed of 6 m/s and a wavelength of 12 m. What is the frequency of this wave?
a. 2.0 Hz
b. 0.5 Hz
c. 18 Hz
d. 72 Hz

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Through non-collinear points there is exactly one plane.

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?