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scZoUnD [109]
3 years ago
12

Solve the equation 2x^2+8x-1=0 by completing the square. Give your answer to 2 decimal places 4 marks

Mathematics
1 answer:
ad-work [718]3 years ago
3 0

Answer:

Step-by-step explanation:

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Evaluate -x+4y when -x=-4/5 and y= 1/3 write your anwser as a fraction or mixed number
Bogdan [553]

Answer:

\frac{8}{15}

Step-by-step explanation:

The given expression is

-x+4y

We have to find the value of given expression when -x=-4/5 and y= 1/3.

Substitute -x=-4/5 and y= 1/3 in the above expression, to find the value of given expression when -x=-4/5 and y= 1/3.

-\frac{4}{5}+4(\frac{1}{3})

After multiplication we get

-\frac{4}{5}+\frac{4}{3}

Taking LCM, we get

\frac{3(-4)+5(4)}{15}

\frac{-12+20}{15}

\frac{8}{15}

Therefore, the value of given expression is \frac{8}{15}.

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Answer:

an American citizen who treated immigrants

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irina [24]
I would say a. is not very common. 
I did not calculate the rest, I am just canceling out one for you
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Faye is making bead necklaces. She has 243 beads . Faye makes 51 with the same amount of beads on each necklace. How many beads
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Faye has 243 beads.

She uses 51 for each necklace.


243/51 = 4.7...

243-51-51-51-51=39.

She can make 4 necklaces, with an extra of 39 beads.


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Step-by-step explanation:

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