mishope mishope

25-02-2015
Mathematics

contestada

if F(x)=3x-1 and g(x)=2x+5
a. (F o g)(x)
b. (g o f)(x)
c. (f o g)(-2)
d. (g o f)(-2)

Respuesta :

crisforp crisforp

25-02-2015

( fog )(x) = f(g(x)) =3*g(x) - 1 = 3(2x+5) -1 = 6x + 15 - 1 = 6x + 14;
( gof )(x) = g(f(x)) = 2 *f(x) + 5 =2(3x-1) + 5 = 6x-2 + 5 = 6x + 3 ;
( fog )(-2) = 6*(-2) +14 = -12 + 14 = 2;
( gof )(-2) = 6*(-2) + 3 = -12 + 3 = - 9.

Answer Link

Otras preguntas

who the founder of Hull House

Please help. A model car has tires that are 2 inches in diameter. How far will the model travel in 20 revolutions?

How is Lizabeth affected by her relationship with her parents in "Marigolds"?

Please help!!!!!!!! MAX POINTS

The sum of the interior angle measures of a polygon with n sides is 180 find n

Which two scientific theories were developed by Isaac Newton?

How many moles of S are in 33.3 g of (C3H5)2S

the ratio of blue marbles to white marbles and summer bag is equal to 1 to 2 if there are 20 blue marbles how many white marbles are there

Which statement is true about the local minimum of the graphed function over the function

In the gym the ratio of volleyballs to soccer balls is 7 to 4. If there are 91 volleyballs, how many total sports balls are in the gym?