Question 4. Convert to Vertex form by completing the square and factoring and isolating y. Which is the first step of work where an error is made? *

y=-x^2-6x-8

A. y + 8 = -x^2 -6x

B. -y - 8 = x^2 +6x

C. -y +1 = x^2 + 6x + 9

D. -y + 1 = (x+3)^2

E. -y = (x+3)^2 -1

F. y = (x-3)^2 + 1

Use the function nest to evaluate p(x) = 1 + x + · · · + x50 at x = 1.00001. (use the matlab ones command to save typing.) find the error of the computation by comparing with the equivalent expression q(x) = (x51 − 1)/(x − 1).

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?