Number 4 please help 4. Sherri and Deion both have square posters. Sherri’s poster has an area of 49 square inches. If Deion’s poster has an area that is 4 square inches less than Sherri’s poster, what are the side lengths of Sherri and Deion’s posters?

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

What is the total surface area of this square pyramid?