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3 years ago

13

3249

gn="absmiddle" class="latex-formula">

2 answers:

Anit [1.1K]3 years ago

8 0

71,47899999899999999999999

zmey [24]3 years ago

5 0

71478 is your answer. Hope I helped!

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Find the volume of the ellipsoid x2+y2+4z2=100x2+y2+4z2=100.

kondor19780726 [428]

Given the ellipsoid $x^2+y^2+4z^2=100$

For the radius in the x-dirextion, y = z = 0, and we have

$x^2=100 \\ \\ \Rightarrow x=\pm10$

For the radius in the y-dirextion, x = z = 0, and we have

$y^2=100 \\ \\ \Rightarrow y=\pm10$

For the radius in the z-dirextion, x = y = 0, and we have

$4z^2=100 \\ \\ \Rightarrow z^2=25 \\ \\ \Rightarrow z=\pm5$

Thus, the radius of the ellipsoid is given by

$Volume=4\pi r^3=4\pi\times10\times10\times5=500\pi$

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3 years ago

Write an equation of the line that passes through the point (2, -1) and is perpendicular to the line y = -2x + 1, then use Point

ratelena [41]

Y+1=1/2(x-2)

y = 1/2x - 2

5 0

4 years ago

A <br><br>B <br><br>C <br><br>D...............

evablogger [386]

I got imaginary means complex numbers
So answer is d

4 0

4 years ago

What is the value of x?<br><br> Enter your answer in the box<br><br> (Please hurry)

GaryK [48]

Answer:

$\large\boxed{x=20}$

Step-by-step explanation:

The whole triangle and small triangle are similar (AA). Therefore the sides are in proportion:

$\dfrac{5x+10+10}{10}=\dfrac{121+11}{11}$

$\drac{5x+20}{10}=\dfrac{132}{11}$ <em>cross multiply</em>

$11(5x+20)=(10)(132)$ <em>use distributive property</em>

$(11)(5x)+(11)(20)=1320$

$55x+220=1320$ <em>subtract 220 from both sides</em>

$55x=1100$ <em>divide both sides by 55</em>

$x=20$

7 0

4 years ago

e-lub [12.9K]

<span>Solution above is incorrect, simplify as follows:
-(7c-18)-2c > 0

-7c+18-2c > 0
-9c > -18
c < 2</span>

8 0

3 years ago