Find f(g(3)).

f(x) = 2x-5
g(x) = 1+x^2

f(g(3)) = ?

Greetings from Brasil...

For the composite function f(g(x)), just replace the function g(x) in the x of f(x):

f(x) = 2x - 5

g(x) = 1 + x²

then

f(g(x)) = 2 · (1 + x²) - 5

f(g(x)) = 2 + 2x² - 5

and

f(g(3)) = 2 + 2 · (3)² - 5

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles