2 years ago

how would you find the volume of an ice-cream cone with ice cream in it? what measurements would you need?

Mathematics

1 answer:

chubhunter [2.5K]2 years ago

3 0

Cone and sphere volume formula

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X^2=4x-15 solve with Quadratic formula

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$x=2+i\sqrt{11}$

$x=2-i\sqrt{11}$

Step-by-step explanation:

we have

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we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

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in this problem we have

$x^{2}-4x+15=0$

$a=1\\b=-4\\c=15$

substitute in the formula

$x=\frac{-(-4)(+/-)\sqrt{-4^{2}-4(1)(15)}} {2(1)}$

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Remember that

$i=\sqrt{-1}$

$x=\frac{4(+/-)\sqrt{-44}} {2}$

$x=\frac{4(+/-)2i\sqrt{11}} {2}$

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