3 years ago

What’s the variance

Mathematics

1 answer:

creativ13 [48]3 years ago

8 0

A is the right answer

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If the point is (-4,2) what the reflection over y=x

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Answer:

(2,-4)

Step-by-step explanation:

When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places.

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2 years ago

6y−3(4/3y−2) Simplified please?

Hitman42 [59]

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6(3y2−2y−2)3y−2

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2 years ago

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On the graph of f(x)=cos x and the interval [0,2π), for what value of x does f(x) achieve a minimum?

Mariulka [41]

Answer:

$cos(\pi)=-1$

Step-by-step explanation:

$f(x)=cos (x)$

State that the values where cos x is minimum:

$x=\pi +2\pi n, n\in \mathbb{Z}$

$cos(0)=1\\$

$cos\left(\frac{\pi}{4} \right)=\frac{\sqrt{2} }{2}$

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3 years ago

How do you calculate the minimised dimensions: length width and height of a rectangular prism with the given volume of 10m^3?

Elan Coil [88]

The length, width and height of the rectangular prism is ∛10

<h3>How to determine the dimensions?</h3>

The volume is given as:

Volume, V = 10m^3

For a minimised volume, we have:

Length = Width = Height

This means that:

V = L^3

So, we have:

L^3 = 10

Take the cube root of both sides

L = ∛10

Hence, the length, width and height of the rectangular prism is ∛10