What is true about discipline

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

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy