Which expression could you use to find the average rate of change for this function over the given interval. f(x) = 2x2 − x + 6; [−2, 3] a) f(2) − f(3) 3 − (−2) b) f(−2) − f(3) 2 −3 c) f(3) − f(−2) 3 − (−2) d) − f(3) − f(−2) 3 − (−2)

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

The sum of two numbers is 58. the first number is 8 less than half the second number. let  c  represent the first number. let  drepresent the second number. which statements about solving for the two numbers are true? check all that apply.the equation    represents the sum of the two numbers.the equation    represents the sentence “the first number is 8 less than half the second number.”the equation    represents the relationship between the two numbers.the equation    represents the sum of the two numbers.the number  d  is 14.the number  c  is 44.the number  c  is 14.the number  d  is 44.

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.