What does the central limit theorem say about the shape of the distribution of sample means?

Solve: 3x+y=6 4x-2y=18 show all work !

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?