PLEASE HELP BEST ANSWER GETS BRAINLIEST URGENT

Mathematics

1 answer:

dybincka [34]3 years ago

3 0

Answer:

-- = y

Step-by-step explanation:

Because it is 25% off, x is divided by 25 to get the price.

For example if x was 100, divide it by 25 you get 75, which is y.

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$therefore\\x=\frac{-2\pm\sqrt{2^2-4(2)(-3)}}{2(2)}=\frac{-2\pm\sqrt{4+24}}{4}=\frac{-2\pm\sqrt{28}}{4}=\frac{-2\pm\sqrt{4\cdot7}}{4}=\frac{-2\pm2\sqrt7}{4}\\\\=\frac{-1\pm\sqrt7}{2}\\\\so,\ the\ answer:\\\\(x-1)\cdot2\left(x-\frac{-1-\sqrt7}{2}\right)\left(x-\frac{-1+\sqrt7}{2}\right)\\\\=\boxed{(x-1)(2x+1+\sqrt7)\left(x+\frac{1-\sqrt7}{2}\right)}=\boxed{\frac{1}{2}(x-1)(2x+1+\sqrt7)(2x+1-\sqrt7)}$

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Read 2 more answers

Please answer as soon as possible. Your help is truly appreciated. Be safe.

AlladinOne [14]

There are 2.5 pounds in 40 ounces. To find out you substitute 40 for z, then divide 40 by 16, getting 2.5.

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3 years ago