Answer:
Option (a) is correct.
The value of given function at x = 3 is -28
Step-by-step explanation:
Given : Function
We have to find the value of given function at x = 3
Consider the given function
Since, we have tof ind the value of function at x = 3
Put x = 3 in given function f(x)
Simplify, we have,
Thus, the value of given function at x = 3 is -28
Using proportions, it is found that the length of AC is of 15 units.
<h3>What is a proportion?</h3>A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The ratios in this problem are given as follows:
The entire length is of 18 units, AB is half of that, hence:
AB = 0.5 x 18 = 9 units.
BC is two thirds of the length from 6 to 15, hence:
BC = 2/3 x (15 - 6) = 6
Thus, the length of AC is:
AC = 9 + 6 = 15 units.
More can be learned about proportions at brainly.com/question/24372153
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