Answer:
question 1=12
question 2= [tex]3|-2x^2-4|-4[/tex]
Step-by-step explanation:
question 1
[tex]u(t)=7t-2\\\\s(t)=t^{2}-9 \\\\s(u(2))=?\\\\u(2)=7(2)-2=14-2=12\\\\u(2)=12\\\\s(12)=(12)^2-9=144-9=135\\\\s(u(2))=135[/tex]
question 2
[tex]f(x)=3|x+1|-4\\\\g(x)=-2x^2-5\\\\f(g(x))=?\\\\g(x)=-2x^2-5\\\\f(-2x^2-5)=3|(-2x^2-5)+1|-4\\\\f(g(x))=3|-2x^2-5+1|-4\\\\f(g(x))=3|-2x^2-4|-4\\\\[/tex]
