CI said the angle between vector (-9,-8) and vector (-6,5) is 81.4º. Jamie said, "Cl you are wrong. The angle between these two vectors is 100.40." Which statement below is
true?
a) CJ is correct.
b) Jamie is correct.
c) Neither CJ nor Jamie is correct.
d) Not enough information to determine.

Consider the function f left parenthesis x right parenthesis equals 4 x squared minus 3 x minus 1f(x)=4x2−3x−1 and complete parts (a) through (c). (a) find f left parenthesis a plus h right parenthesis f(a+h); (b) find startfraction f left parenthesis a plus h right parenthesis minus f left parenthesis a right parenthesis over h endfraction f(a+h)−f(a) h; (c) find the instantaneous rate of change of f when aequals=77.