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3 years ago

If f(x)= 2(3x²-2x+2). Find:A) f(x+1)B) f(3)C) f(y-2)

1 answer:

8 0

A) f(x+1) = 6x^2 + 8x + 6
1) substitute the value of x as (x+1)
2) 2(3(x+1)^2 -2(x+1) +2)
3) 6(x^2 + 2x + 1)
4) 6x^2 + 8x + 6

B) f(3) = 46
1) simplify the expression first
2) 6x^2 -4x + 4
3) Now just substitute 3: 6(3)^2 -4(3) + 4
4) 6•9 - 12 + 4 = 46

I hope this helps :)

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3 years ago

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Answer: $1.495*10^8\ inches$

Step-by-step explanation:

For this exercise you have to remember the Product of powers property, which states that:

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You know that the thickness of 1 pennie is $5.98*10^{-2}\ inches$ , then, you can write the following proportion:

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3 years ago

Find the perimeter of the figure to the nearest hundredth

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Answer: 33.13 in

Step-by-step explanation:

First, let's start with the perimeter of the semicircles.

Since there are two, it is easier to do because the perimeter of the two halves will add to one full circle; so we can just calculate without having to halve anything.

The formula for the perimeter (aka circumference) of a circle is 2πr

Plug the radius into the equation to get 2π4, or 8π

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We now have to subtract the diameters of the circles, as they are not on the outside of the figure and won't be counted in the total perimeter. From the 24, we subtract the two diameters, or 16 in.

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The total perimeter then comes out to be 25.13 + 8, or 33.13 in

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3 years ago

If f(x)= 2(3x²-2x+2). Find:A) f(x+1)B) f(3)​C) f(y-2)

If f(x)= 2(3x²-2x+2). Find:A) f(x+1)B) f(3)C) f(y-2)