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Dovator [93]
3 years ago
15

X-y+z for x= 1,y=6,z=1

Mathematics
1 answer:
adell [148]3 years ago
6 0

Answer:

I'm glad you asked!

Step-by-step explanation:

x = 1.So the starting number is 1.

y=6.So it is 1-6.

z = 1.So it is now 1 - 6+1.

1-6+1 = -4.Your final answer is -4.

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Read 2 more answers
For f(x) = 5x and g(x)= x + 9, find
Bad White [126]

Answer:

  • (fog)(x)  = 5x+45
  • (gof)(x)   = 5x+9
  • (fog)(3) = f(g(3)) = f(12) = 60    

Step-by-step explanation:

Given

  • f(x) = 5x
  • g(x) = x + 9

Finding (fog)(x)

(fog)(x)  = f(g(x))

(fog)(x)  = f(x+9)

(fog)(x)  = 5(x+9)             ∵ substitute x as x+9 in the f(x)

(fog)(x)  = 5x+45

Finding (gof)(x)

(gof)(x) = g(f(x))

(gof)(x)  = g(5x)

(gof)(x)   = 5x+9                 ∵ substitute x as 5x in the g(x)

Finding (fog)(3)

(fog)(3) = f(g(3))

substitute x = 3 in the g(x)=x+9

g(x) = x+9

g(3) = 3+9

g(3) = 12

so

(fog)(3) = f(g(3)) = f(12)

now substitute x = 12 in  f(x) = 5x

f(x) = 5x

f(12) = 5(12)

f(12) = 60

Thus,

(fog)(3) = f(g(3)) = f(12) = 60

5 0
3 years ago
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