What's the value of 57,281 joules in btu? a. 54.3 btu b. 14.2 btu c. 28.9 btu d. 37.7 btu

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

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely