Dimitristhym

No its x power 2 

Like this: \(x^2\) or x*x  its means x multiply x 

Hope it helps!

Yes this is the same and this is faster and i think the fastest way to answer! 

The answers is 

y= 9-(0)       y= 9       (0,9) 

y= 9-(2)       y= 7       (2,7)

y= 9-(6)       y= 3       (6,3) 

You have in the order of the data the values of x (-4,0,2,6),the function y= 9 - x , the values of y, (x,y)

Hope it helps!

Because its a straight so its f(x) = ax + b 

and because x,y increase at the same rate its 1 so f(x) = x + b and b = 1 to verify the equation ! 

Ok we have:

f(x) = x+1 , xΕ [-2,2] 

and g(x) =  x + 1 , xE [-2,1)

                  1 , x=2

                  -x + 3 , xE(1,4]

So f(g(x)) = (x+1) + 1 , xE [-2,1) 

                   (-x + 3) + 1 , xE (1,2] 

We need around 1 to know the equation of function f(g(x)) because we want lim x->1 

so when lim x -> 1+ f(g(x)) = (x+1) + 1 = 1 + 1 + 1 = 3 

when lim x -> 1- f(g(x)) = (-x+3) + 1 = -1 + 3 + 1 = 2 +1 = 3 so 

lim x -> 1+ = lim x -> 1- = 3 

lim x -> 1 = 3 

Correct answer (C) 

f(x) , g(x) I find the equation of function from graph!

tan 43 = 0,933 ~ 1 

so tan 43=x/12 <=>

x= 12*tan 43 = 12*0,933 = 11.196 ~ 11.2 so the answer is \(11.2\) 

Hope it helps!

You will find f(x) its 

\(f(x) = x^3 - x^2 - x +1 \)

But where i find it? 

You will start for 0 so f(0)= 1 so its a fuction function with +1 in the end because all other is 0 

after for experience see that when you have 2 f(2)= 3 but f(-2) = -9 and 9>3 so you have x^3 but 2 in row 2 (-) and with tests resulting 

\(f(x) = x^3 - x^2 - x +1\)

and with this equation verifies this :−3 −32,−2 −9,−1 0,0 1,1 0,2 3 ,3 16 

so the question is What is the degree of f? 

The degree of f(x) = 3 because is x^3 !!!

Hope it helps! 

You're wellcome!

ok i prove it below! 

\(AD=AB + BD \)

so  \(AB = 30 - 20 =10 \)

and \(AB = AC + CD \)

so \(CD = 30 - 16 = 14 \)

Finally \(AD = AB + BC + CD \)

so \(BC = 30 - 10 - 14 = 6 \)

so \(BC = 6\)