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PIT_PIT [208]
2 years ago
7

F(x) = 6x+2, find f (x+3)

Mathematics
2 answers:
nikklg [1K]2 years ago
3 0

Answer:

6x+20

Step-by-step explanation:

F(x) = 6x+2

f(x+3) means replace x with x+3

F(x+3) = 6(x+3)+2

         = 6x+18+2

         = 6x+20

Alika [10]2 years ago
3 0

Answer:

A; F(x+3) = 6x^2 + 20x + 6

Step-by-step explanation:

To find it you just would multiply F(x) onto the other side. So it would look like this:

           F(x+3) = 6x + 2 (x+3)            

          F(x+3) = 6x^2 + 2x + 18x + 6            *combine like terms getting you

           F(x+3) = 6x^2 + 20x + 6    

Hope this helped!!

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3 years ago
The width of a rectangle is 5 units less than the length. The area of the rectangle is 6 units. What is the width, in units, of
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Answer:

The width of rectangle is 1 unit.

Step-by-step explanation:

Given:

The area of rectangle is 6 units and its width is 5 units less than the length.

So, to find the width of rectangle.

Let the length be x and the width be x-5.

Now, to find the width we put the formula of area of rectangle:

Area = length × width

6= x\times (x-5)

6=x^{2}-5x

0=x^{2}-5x-6

0=x^{2}-6x+x-6

0=x(x-6)+1(x-6)

0=(x-6)(x+1)

<em>On solving equation we get:</em>

x-6=0, x+1=0

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x-6=0

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Therefore, the width of rectangle is 1 unit.

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3 years ago
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