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Butoxors [25]
3 years ago
8

For the functions f(x) = 6x – 1 and g(x) = 4x2 + x, find (gºf)(x). Provide your answer bolow

Mathematics
1 answer:
emmainna [20.7K]3 years ago
6 0

For this case we have the following functions:

f (x) = 6x-1\\g (x) = 4x ^ 2 + x

We must find (g_ {o} f) (x):

By definition of composition of functions we have to:

(g_ {o} f) (x) = g (f (x))

So:

(g_ {o} f) (x) = 4 (6x-1) ^ 2 + (6x-1) = 4 ((6x) ^ 2-2 (6x) (1) + (1) ^ 2) + 6x -1 = 4 (36x ^ 2-12x + 1) + 6x-1 = 144x ^ 2-48x + 4 + 6x-1 = 144x ^ 2-42x + 3

We have different signs subtracted and the sign of the major is placed.

Finally we have to:

(g_ {o} f) (x) = 144x ^ 2-42x + 3

ANswer:

(g_ {o} f) (x) = 144x ^ 2-42x + 3

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3 years ago
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Calculate percentage to the nearest 0.1%.
Anna71 [15]

9514 1404 393

Answer:

  a. $4.17

  b. 233.3%

Step-by-step explanation:

a. The proportion the markup (m) is to the total (t) is ...

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The total is the cost (c) plus the markup, so we have ...

  m : t = 7 : 10 = m : (m +c) = 7 : 7 +3

Then the ratio of total price to cost is ...

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4 0
3 years ago
What number is 10th times as much as 17.1
Effectus [21]

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Step-by-step explanation:

you move the decimal to the right one time.

8 0
2 years ago
What is the solution to this system of equations?
vovangra [49]

3x + 2y=-10 equation 1

y=-x -4 equation 2

use the substitution method of elimination to get the answer to the question.

*using substitution

substitute equation 2 in one and we get

3x +2(-x-4)=-10

3x- 2x-8=-10

x=-2 and y=-2

Answer:

B

7 0
2 years ago
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