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2 years ago

9

Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign?

1 answer:

Lelechka [254]2 years ago

7 0

Answer:

A is the correct answer

Step-by-step explanation:

Area= (8x-2)^2=(8x)^2 -2(8x)(2) +(2)^2

=64x-32x+4

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frez [133]

The answer is d i honestly just typed it into the computer

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3 years ago

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insens350 [35]

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3 years ago

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Ipatiy [6.2K]

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Step-by-step explanation:

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3 years ago

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If f(x)=2x-4, what would be the answer if f(3)-1??

Vinil7 [7]

Answer:

1

Step-by-step explanation:

We have the function

$f(x) = 2x - 4$

and we want to know the value of $f(3) - 1$ .

The first step is to find $f(3)$ ; we can subtract 1 from it at the end! But what does $f(3)$ mean?

Basically, we're saying <em>"what is the value of the function when </em> $x = 3$ <em> ?"</em>

So, we simply replace $x$ with 3 in the function, and we get:

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3 0

3 years ago

Difference in the following polynomials (6x^3 - 2x^2 + 4)<br> -(2x^3 + 4x^2 - 5)

Colt1911 [192]

$\bold{[ \ Answer \ ]}$

$\boxed{\bold{4x^3-6x^2+9}}$

$\bold{[ \ Explanation \ ]}$

$\bold{Find \ Difference: \ \left(6x^3\:-\:2x^2\:+\:4\right)-\left(2x^3\:+\:4x^2\:-\:5\right)}$

$\bold{-----------------------}$

$\bold{Remove \ Parenthesis}$

$\bold{6x^3-2x^2+4-\left(2x^3+4x^2-5\right)}$

$\bold{Remove \ Parenthesis \ / \ Simplify}$

$\bold{-\left(2x^3+4x^2-5\right): \ -2x^3-4x^2+5}$

$\bold{Rewrite}$

$\bold{6x^3-2x^2+4-2x^3-4x^2+5}$

$\bold{[Simplify \ 6x^3-2x^2+4-2x^3-4x^2+5] \ 4x^3-6x^2+9}$

$\bold{4x^3-6x^2+9}$

$\boxed{\bold{[] \ Eclipsed \ []}}$

6 0

3 years ago