3. If f(x)=2x+3 then what is f(x+1)? Plzzz answer ASAP

 =2x+5

Step-by-step explanation:

f(x)=2x+3

Replace x with x+1

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

        =2x+2+3

    Combine like terms

        =2x+5

your answer would be 12

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.