Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

Which statement correctly describes the relationship between frequency and wavelength?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.