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Black_prince [1.1K]
3 years ago
7

Can someone help me on these ???

Mathematics
2 answers:
krok68 [10]3 years ago
8 0
Multiply 81.5p and divide 7.5% you get the answer
Serjik [45]3 years ago
8 0
It can take 1200 liters....and it already has 450 liters.....so it needs (1200 - 450) = 750 liters to fill it up to full capacity.

and the price is 81.5 pounds per liter......for 750 liters...
81.5 * 750 = $ 61125 pounds

and he gets a 7.5% discount...
so his discount would be : 0.075 * 61125 = 4584.375 rounds to 
$ 4584.38 pounds <== ur answer
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Find domain of y=rad20-6x
Evgesh-ka [11]
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so... you end up with an "imaginary value"

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to check for that, let us make the expression to 0, and see what is "x" then

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now, if "x" is 10/3, let's see \bf \sqrt{20-6\left( \frac{10}{3} \right)}\implies \sqrt{20-20}\implies \sqrt{0}\implies 0

now, 0 is not negative, so the radicand is golden

BUT, if "x" has a value higher than 10/3, the radicand turns negative
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so.. that's not a good value for "x"

thus, the domain, or values "x" can safely take on, are all real numbers from 10/3 onwards, or to infinity if you wish
5 0
3 years ago
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Step-by-step explanation: hope this help

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