Answer:
4(5+4)
Step-by-step explanation:
4(5+4) equals 36, and 20 + 16 equals 36 as well, so therefore 20 + 16 is equivalent to 4(5+4)
For part A, you simply add the two functions a(x) and b(x). The resulting function is then (a+b)(x) = 5x +2.
For part B, you multiply the functions a(x) and b(x). Using the FOIL method, we obtain, 6x^2 -24x + 20x - 80. Simplifying, we get, (a*b)(x) = 6x^2 -4x - 80.
For part C, you replace x in the function a(x) with the expression from b(x). This results to: a[b(x)] = 3(2x - 8) +10. Simplifying, a[b(x)] = 6x - 14.
3-7 is -4 because if you use a number line and start at three and go back 7 you will get -4
<h2>
Hello!</h2>
The answer is:
The correct option is the first option,

<h2>
Why?</h2>
To solve the problem, we need to remember that the way to solve inequalities is almost the same that solving normal equations.
So, we are given the inequality, we have:

Now, solving we have:

Hence, we have that solution to the inequality is:

So, the correct option is the first option,

Have a nice day!