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3 years ago

9

An astronaut took a picture. He sent a 1.2” by 1.8” picture to four friends. If the photo was enlarged 150% of it’s original siz

e, what would be the new length and height of the picture?

1 answer:

WINSTONCH [101]3 years ago

8 0

Try this it might help

https://EpicCodes.com/?ref=2012996

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Answer:

Y-intercept = -3

Step-by-step explanation:

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What are the factors of 3x²+7x-20?

Leya [2.2K]

$3x^2+7x-20=0\\\\a=3;\ b=7;\ c=-20\\\\\Delta=b^2-4ac\\\\x_1=\frac{-b-\sqrt\Delta}{2a};\ x_2=\frac{-b+\sqrt\Delta}{2a}\\\\\Delta=7^2-4\cdot3\cdot(-20)=49+240=289;\ \sqrt\Delta=\sqrt{289}=17\\\\x_1=\frac{-7-17}{2\cdot3}=\frac{-24}{6}=-4;\ x_2=\frac{-7+17}{2\cdot3}=\frac{10}{6}=\frac{5}{3}\\\\\\3x^2+7x-20=3(x+4)(x-\frac{5}{3})\\\\\\3x^2+7x-20=0\iff x=-4\ \vee\ x=\frac{5}{3}$

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