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2 years ago

F(x) =x^2-4x+2 and g(x) =3x-7 find (fog)(x)

Mathematics

2 answers:

fgiga [73]2 years ago

7 0

Answer:

9x² - 54x + 79

Step-by-step explanation:

To find (f ￮ g)(x) substitute x = g(x) into f(x), that is

f(g(x))

= f(3x - 7)

= (3x - 7)² - 4(3x - 7) + 2 ← expand factor using FOIL

= 9x² - 42x + 49 - 12x + 28 + 2 ← collect like terms

= 9x² - 54x + 79

sergejj [24]2 years ago

3 0

Answer:

Step-by-step explanation:

hello :

F(x) =x²-4x+2 and g(x) =3x-7

(fog)(x)=f(g(x))=f(3x-7) = (3x-7)²-4(3x-7)+2

(fog)(x)= 9x²-42x+49-12x+28+2

in standard form : (fog)(x)= 9x²-54x+79

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2 years ago

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(Encircle this answer, as said on the directions)

Step-by-step explanation:

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2 years ago

The value of y varies jointly with the values of x and z When x = 4 and z = 10, the value of y is 360.

Igoryamba

Answer:

Step-by-step explanation:

Joint variation is given by:

$y=kxz$

Where k is some constant.

We are given that y = 360 when x = 4 and z = 10. Therefore:

$360=k(4)(10)$

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$40k=360\Rightarrow k=9$

Therefore, our equation is:

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2 years ago

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nignag [31]

Answer:

Step-by-step explanation:

Can you give me more information on the question, so i can make sure that i give you the correct answer . I think its A but not totally for sure

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2 years ago

When calculating a loanâ€™s effective interest rate, if the nominal rate is 8. 5%, what value of i do you plug into your equatio

natta225 [31]

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The value to plug into your equation,

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Thus, the nominal rate is 8.5% can be written as

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Hence, the nominal rate to plug in will be 0.085.

To know more visit:

brainly.com/question/12522729

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2 years ago

F(x) =x^2-4x+2 and g(x) =3x-7 find (fog)(x)​

F(x) =x^2-4x+2 and g(x) =3x-7 find (fog)(x)