Given the functions a(x) = 3x − 12 and b(x) = x − 9, find a[b(x)].

PLZ HEL

The value of is

Explanation:

Given that the functions and

We need to determine the value of

The value of can be determined by substituting in the function  

Thus, we have,

Let us substitute the value in the function

Substituting in the function , we get,

Multiplying the terms, we get,

Adding the like terms, we have,

Thus, the value of is

3x - 39

Step-by-step explanation:

a(b(x)) = 3b(x) - 12

= 3(x - 9) - 12

= 3x - 27 - 12

= 3x - 39

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn