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3 years ago

Part A

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

6 0

Answer:

Step-by-step explanation:

There are several possible outcomes. If your cross section is created by intersecting the cone with a plane parallel to the base of the cone, the cross section is a circle. If the plane is held vertical, the cross section could be a hyperbola. If the intersecting plane is neither vertical nor horizontal, the cross section could be an ellipse.

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What is the equation of the line that passes through (1,3) and (2,5)

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2 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

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What is the answer? x^2 + 4x - 6 = 0

vodka [1.7K]

First we have to find $\Delta$ from the equation $b^{2} -4ac$ where a, b and c are consecutive coefficients of the equation. In this case: $a=1, b=4, c=-6$

 $\Delta =4^2-4*(-6)=16+24=40$ , 

Later we will need to use $\sqrt{\Delta}$ sofor us $\sqrt{40}$ . It can be then simplified to $2 \sqrt{10}$ .

Then we use quadratic formula $x=\frac{-b\pm \sqrt{\Delta} }{2a}$ to see what are the options for x.

$x=\frac{-4\pm 2\sqrt{10}}{2}$
$x=- 2 \pm \sqrt{10}$

The answer for your question:
 $x=- 2 + \sqrt{10}$ or $x=- 2 - \sqrt{10}$

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3 years ago