Let f be the function given below. What is the value of z for which f is differentiable at x=-2? f(x) = {wx+4 for x<-2, -3x^2+z for x≥-2}

Three coins are flipped. what is the probability that there will be at least two tails?

After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30

Convert 2000 swiss francs to dutch guilders