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4 years ago

Which expression is equivalent to 5x + 5x – x + 8y – 4y?

1 answer:

6 0

5x + 5x - x + 8y - 4y =
(5x + 5x - <span>x) + (8y - 4y) =
(9x) + (4y) =
9x + 4y

</span> ${\boxed{\sf\ Answer:\ 9x+4y}$ <span>
</span>

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2 years ago

After transforming f(x) = 2x² +4x + 3 into vertex form, the vertex is easily identifiable. Which ordered pair is the vertex?

jolli1 [7]

The vertex is $(-1,1)$

Explanation:

The equation is $f(x)=2x^{2} +4x+3$

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Dividing each term by 2 in the equation $f(x)=2x^{2} +4x+3$

$f(x)=2(x^{2} +2x+\frac{3}{2} )$

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The first three terms can be written as $(x+1)^{2}$ ,

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Multiplying 2 into the bracket, we get,

$f(x)=2(x+1)^{2} +1$

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3 years ago

How do you solve this?9=8x+15/x

fiasKO [112]

8x=15+9

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x=3

you are going to divide 8 by 8 which will cancel each other and you will left with x and divide 24by 8 which will give you 3

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3 years ago