7. A teacher makes a table that lists the number x of letters in the first name and the number y of letters in the last name of each student in the class. Is this a function?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

Cavaliers principle states that two solids with equal heights and cross-sectional volumes at every level have equal areas.

Need ! a certain ultraviolet ray has a frequency of 1 × 1016 hz, and a certain infrared ray has a frequency of 2 × 1012 hz. which of the following is true? a. the frequency of the ultraviolet ray is fifty thousand times the frequency of the infrared ray. b. the frequency of the infrared ray is fifty thousand times the frequency of the ultraviolet ray. c. the frequency of the ultraviolet ray is five thousand times the frequency of the infrared ray. d. the frequency of the infrared ray is five thousand times the frequency of the ultraviolet ray.