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2 years ago

Find the volume of a cone with a base radius of 6 yd and a height of 12 yd

Mathematics

1 answer:

anygoal [31]2 years ago

5 0

Answer:

452.38934 yd^3

Step-by-step explanation:

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Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.

likoan [24]

Answer:

Thus, the two root of the given quadratic equation $x^2+4=6x$ is 5.24 and 0.76 .

Step-by-step explanation:

Consider, the given Quadratic equation, $x^2+4=6x$

This can be written as , $x^2-6x+4=0$

We have to solve using quadratic formula,

For a given quadratic equation $ax^2+bx+c=0$ we can find roots using,

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ ...........(1)

Where, $\sqrt{b^2-4ac}$ is the discriminant.

Here, a = 1 , b = -6 , c = 4

Substitute in (1) , we get,

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\Rightarrow x=\frac{-(-6)\pm\sqrt{(-6)^2-4\cdot 1 \cdot (4)}}{2 \cdot 1}$

$\Rightarrow x=\frac{6\pm\sqrt{20}}{2}$

$\Rightarrow x=\frac{6\pm 2\sqrt{5}}{2}$

$\Rightarrow x={3\pm \sqrt{5}}$

$\Rightarrow x_1={3+\sqrt{5}}$ and $\Rightarrow x_2={3-\sqrt{5}}$

We know $\sqrt{5}=2.23607$ (approx)

Substitute, we get,

$\Rightarrow x_1={3+2.23607}$ (approx) and $\Rightarrow x_2={3-2.23607}$ (approx)

$\Rightarrow x_1={5.23607}$ (approx) and $\Rightarrow x_2=0.76393}$ (approx)

Thus, the two root of the given quadratic equation $x^2+4=6x$ is 5.24 and 0.76 .

7 0

2 years ago

Read 2 more answers

Whats the gcf of 15 and 70

makvit [3.9K]

The gcf of 15 and 70 is 5

8 0

3 years ago

Read 2 more answers

Help!!!!!!!! Please

kvv77 [185]

The answer is C

Hope it helped

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3 years ago

!!!! PLEASEEE HELP ME, IDK WHAT TO DO PLEASE !!!!

Helga [31]

Answer:

The first question is A.

The second question is C.

The thid question is B., I think i'm not quit sure sorry

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2 years ago

Given: If a child is at least 4 feet tall, then

KIM [24]

Answer:

Step-by-step explanation:

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3 years ago