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2 years ago

Help me this assignment is due soon.

Mathematics

1 answer:

AlekseyPX2 years ago

6 0

So maybe it’s 5, it’s equivalent to the side with 6, just shorter

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Find the volume of the wedge-shaped region (Figure 1) contained in the cylinder x2+y2=81 and bounded above by the plane z=x and

Natali5045456 [20]

In cylindrical coordinates, the volume is given with

$\displaystyle\int_{\theta=-\pi/2}^{\theta=\pi/2}\int_{r=0}^{r=9}\int_{z=0}^{z=r\cos\theta}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\int_{\theta=-\pi/2}^{\theta=\pi/2}\int_{r=0}^{r=9}r^2\cos\theta\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\left(\int_{\theta=-\pi/2}^{\theta=\pi/2}\cos\theta\,\mathrm d\theta\right)\left(\int_{r=0}^{r=9}r^2\,\mathrm dr\right)$
$=486$

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2 years ago

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Two sides of a triangle measure 27 inches and 32 inches. Which could represent the length of the third side?

charle [14.2K]

Answer:

Step-by-step explanation:

The third side could have dimension x

32 - 27 < x < 32 + 27

5 < x < 59

There are a few special triangles

Equilateral triangle could have legs

27, 32, 27

32, 27, 32

A right triangle could have the third side

√(27² + 32²) = √1753 which is about 41.87

√(32² - 27²) = √295 which is about 17.18

Notice all these fit within the original limits specified.

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2 years ago

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PLZ ANSWER NUMBERS 8 AND 9. SHOWS YOUR WORK TOO!!!!

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8. 3x-4>38
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3 years ago

5x+8-7x=-4x+1 How many solutions does this have? A)no solutions B)exactly one solution C)infinitely many solutions

koban [17]

Answer:

C)infinitely many solutions

Step-by-step explanation:

$5x+8-7x=-4x+1\\-2x+8=-4x+1\\2x+8=1\\2x=-7\\x=-3.5$

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2 years ago

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katrin2010 [14]

Hello!

In order to find this out we should first know the ratio for the time and distance. So it takes her 4 minutes to go 2 blocks. So the ratio looks like this: 4:2. If we are trying to find 9 blocks, then multiply it by 4 and just add the other two minutes .

So in total your answer is: It takes Maya 18 minutes to walk 9 blocks.

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