All categories

3 years ago

If f(x) = 4x + 8 and g(x) = (x+4, what is (fºg)(12)?

Mathematics

1 answer:

svetlana [45]3 years ago

4 0

Answer:

Step-by-step explanation:

$f(x) = 4x+8\\g(x) = x + 4\\\\1. f(g(x)) = 4(x+4) + 8\\2. f(g(x)) = 4x + 16 + 8\\3. f(g(x))=4x + 24\\\\4. f(g(12)) = 4(12) + 24\\5. f(g(12)) = 48 + 24 = 72\\$

To do these, you have to place the entire function inside the parent function's variables.

You are inputting the value of the function g(x) into f(x)

You might be interested in

How many sides do 4 hexagons, 1 octagon, and 5 dodecagons have in all?

Vladimir79 [104]

Hexagon = 6 sides = 6 x 4 = 24

Octagon = 8 sides = 8

Dodecagons = 12 x 5 = 60

24 + 8 + 60 = 92 IN TOTAL

5 0

2 years ago

Read 2 more answers

Can anyone help me????

saul85 [17]

6a perimeter is 12 cms and 28cms.

6b side length is 90 cms

6c areas 9sq cm and 49 sq cms

6d 11 cms

5 0

3 years ago

Read 2 more answers

(-9) + (-4) =

Gwar [14]

$\\ \bull\sf\longmapsto -9+(-4)=-9-4=-13$

$\\ \bull\sf\longmapsto +3-(-5)=3+5=8$

$\\ \bull\sf\longmapsto 2\times 2=4$

$\\ \bull\sf\longmapsto 36+4=40$

$\\ \bull\sf\longmapsto 5\times 7=35$

$\\ \bull\sf\longmapsto 8(9)=72$

$\\ \bull\sf\longmapsto -4+(-2)=-4-2=-6$

$\\ \bull\sf\longmapsto 3-(-6)=3+6=9$

$\\ \bull\sf\longmapsto -6(-3)=18$

$\\ \bull\sf\longmapsto -4+(-4)=-4-4=-8$

$\\ \bull\sf\longmapsto 5(7)=35$

$\\ \bull\sf\longmapsto 4-(-5)=4+5=9$

$\\ \bull\sf\longmapsto 4-3=1$

$\\ \bull\sf\longmapsto 10+5=15$

$\\ \bull\sf\longmapsto 3(8)=24$

7 0

2 years ago

F K = {(x, y) | x - y = 5}, is Set K a function?

muminat

Answer:

Yes, because the linear function x - y = 5 is a function

Step-by-step explanation:

x - y = 5 can look like y = x - 5 with slope 1 and y-intercept -5

so this is a function which makes set K a function.

3 0

3 years ago

2 is what percent of 20?

ale4655 [162]

It would be 5% of 20.

4 0

3 years ago

Read 2 more answers