Use the linear combination method to solve the system of equations. explain each step of your solution. 2x+y=-6" " -8x+2y=12

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2

The diameter of a bacteria colony that doubles every hour is represented by the graph below. what is the diameter of the bacteria after 8 hours? graph of a curve passing through the points zero comma 1, one comma two, two comma four, and three comma eight