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3 years ago

What is the area?

Mathematics

2 answers:

Vika [28.1K]3 years ago

8 0

27 because 6*9 is 54,54 divided by 2 is 26

vichka [17]3 years ago

4 0

The area you are looking for is 90 square kilometers

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The probability that the fish is black is 2 / 5.

Over [174]

Answer:

probility that fish is not black is 3/5

Step-by-step explanation:

it' s because the full fraction is 5/5 minus 2/5 which is fish is black. so the left is 3/5 which is not black

6 0

3 years ago

What is the sum of 3/4 + 5/16

guapka [62]

3/4 + 5/16
=12/16 +5/16
=17/16
=1 1/16

4 0

3 years ago

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Sedaia [141]

I cant see it sorry :(

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3 years ago

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Find a point on the ellipsoid x2+y2+4z2=36x2+y2+4z2=36 where the tangent plane is perpendicular to the line with parametric equa

Anvisha [2.4K]

Answer:

A point on the ellipsoid is (-4,2,2) or (4,-2,-2)

Step-by-step explanation:

Given equation of ellipsoid f(x,y,z) : $x^2+y^2+4z^2=36$

Parametric equations:

x=-4t-1

y=2t+1

z=8t+3

Finding the gradient of function

$\nabla f(x,y,z)=\\\nabla f(x,y,z)=$

So, The directions vectors=(-4,2,8)

Now the line is perpendicular to plane when direction vector is parallel to the normal vector of line

$\nablaf(x,y,z)=(2x,2y,8z)=\lambda(-4,2,8)$

So, $2x=-4\lambda$

$\Rightarrow x=-2\lambda$

$2y=2\lambda\\\Rightarrow y=\lambda\\8z=8\lambda\\\Rightarrow z=\lambda$

Substitute the value of x , y and z in the ellipsoid equation

$(2\lambda)^2+(\lambda)^2+4(\lambda)^2=36\\9(\lambda)^2=36\\\lambda^2=4\\\lambda=\pm 2$

With $\lambda = 2$

x=-2(2)=-4

y=2

z=2

With $\lambda =- 2$

x=-2(-2)=4

y=-2

z=-2

Hence a point on the ellipsoid is (-4,2,2) or (4,-2,-2)

7 0

3 years ago

Plz prove the given equation!!!

elixir [45]

Answer:

Please see the attached picture for the full solution.

4 0

3 years ago