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3 years ago

Which of the following is true for all rectangle

Mathematics

2 answers:

deff fn [24]3 years ago

4 0

Hope this helps good luck!!

trapecia [35]3 years ago

3 0

All rectangles aren't squares but all squares are rectangles. Rectangles have the same sized sides and are simmetrical

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Help fill in the answers and are my answers rigt

Anna35 [415]

The third one tells us the price is $12 per liter, that is to say, the top number is twelve times the bottom number.

.25 × 12 = $3

.7 × 12 = $8.40

2.5 × 12 = $30

3.52 × 12 = $42.24

$57.60 / 12 = 4.80 liters

3 0

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

Help me with this plz

djyliett [7]

Ok what do u need help with?

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3 years ago

And have to make payments twice a year on her health insurance if each payment is $2316 how much money should you budget for hea

Oduvanchick [21]

I think that is right I look it up and god bless have a great day

6 0

3 years ago

EXPERTS/ACE/TRUSTED HELPERS

SVETLANKA909090 [29]

ST and WX are the same lines

4 0

3 years ago

Read 2 more answers