8) Use Descartes's Rule of signs to determine the possible number of positive and negative real roots or real zeros. Upload your answer. Show all work. *
f(x) = x^3 + 3x^2– 4

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify