Which of the following statements is not true? a. a number ending in 0 or 5 is always divisible by 5. b .a number ending in 0 is always divisible by 10. c. if a number is divisible by both 2 and 3, then it is not divisible by 6. d. odd numbers are not divisible by 2.

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.