TOP OF THE MORNIN TO THE PEOPLE THAT CAN ANSWER THIS!!!!

1 answer:

7 0

surface area=4πr2=2700 cm2
r2=27004π=27004×3=225
r=225−−−√=15
volume=43πr3=43×3×153=13500 cm3

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steposvetlana [31]

The answer to your question is 225

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Please help, this will just take a minute of your time ❤︎ (literally) (Discriminant Worksheet)

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Answer:

$\large\boxed{x=-\dfrac{7-\sqrt{97}}{4}\ \vee\ x=-\dfrac{7+\sqrt{97}}{4}}$

Step-by-step explanation:

$ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt\Delta}{2a}\\\\\text{We have:}\\\\-2x^2-7x+10=4\qquad\text{subtract 4 from both sides}\\\\-2x^2-7x+6=0$

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