Ineed to solve for the question mark.

The answer to the question mark is 95°

Step-by-step explanation:

First let's look at the 155°:

Since a straight line is automatically 180°, to find the other side of the length (aka one of the missing parts of the triangle), you would do 180-155. You will then get 35 as your answer.

Using that same 35 number:

Now, in a triangle, the total number of degrees in ALL triangles is 180 NO MATTER WHAT! Since we now have two angles, we just need to add them together and subtract by 180. 35 + 60 = 95. 180-95 = 85.

Now for the ? mark:

Remember when I said that a straight line equals 180? Well, now that we have one side of the line, (85), all we need is the other. 180-85=95. Therefore, the answer is 95°.

let's add {f(x)=x+1}f(x)=x+1 and {g(x)=2x}g(x)=2x together to make a new function.

f(x)+g(x) =(x+1)+(2x)=x+1+2x=3x+1

let's call this new function hh. so we have:

{h(x)}={f(x)}+{g(x)}{=3x+1}h(x)=f(x)+g(x)=3x+1

we can also evaluate combined functions for particular inputs. let's evaluate function hh above for x=2x=2. below are two ways of doing this.

method 1: substitute x=2x=2 into the combined function hh.

h(x)

h(2)

​    

=3x+1

=3(2)+1

=7

​ since h(x)=f(x)+g(x)h(x)=f(x)+g(x), we can also find h(2)h(2) by finding f(2) +g(2)f(2)+g(2).

first, let's find f(2)f(2):

f(x)

f(2)

​    

=x+1

=2+1

=3

​  

now, let's find g(2)g(2):

g(x)

g(2)

​    

=2x

=2⋅2

=4

​  

so f(2)+g(2)=3+4=\greend7f(2)+g(2)=3+4=7.

notice that substituting x =2x=2 directly into function hh and finding f(2) + g(2)f(2)+g(2) gave us the same answer!