If f(x) = -X^3+3x+2. Find f(-1).

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)