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VashaNatasha [74]

3 years ago

7

A rectangle with vertices A(6, 0), K(0,0), L(0,9), and M(6, 9) is rotated around the x-axis. To the nearest tenth of a cubic uni

t, what is the volume of the resulting three-dimensional figure? Approximate as 3.14.

1 answer:

koban [17]3 years ago

7 0

Answer:

1526.0 cubic units

Step-by-step explanation:

Rotating rectangle AKLM you will get cylinder with height KA and base radius KL. From the given data

$KA=\sqrt{(6-0)^2+(0-0)^2}=6,\\ \\KL=\sqrt{(0-0)^2+(9-0)^2}=9.$

The volume of the cylinder is

$V_{cylinder}=\pi r^2\cdot H.$

Then

$V_{cylinder}=\pi \cdot 9^2\cdot 6=486\pi \approx 1526.0\ un^3.$

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URGENT PLEASE HELP!!!!!

telo118 [61]

(1)

we are given

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we can find for y

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we can see that y is directly proportional to x

so, option-D........Answer

(2)

y varies inversely with x

so, we can write it as

$y=k\frac{1}{x}$

now, we are given

y=5 when x=2.5

so, we can plug it here

$5=k\frac{1}{2.5}$

and then we can solve for k

$5*2.5=2.5*k\frac{1}{2.5}$

$k=12.5$

now, we can plug back

$y=\frac{12.5}{x}$

we can plug x=20

$y=\frac{12.5}{20}$

$y=0.625$ .............Answer

(3)

we are given

The current, I, in a circuit varies inversely with the resistance, R

so, we can write it as

$I=\frac{k}{R}$

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6 0

3 years ago

What is 4 3/4 + -5/8

Alona [7]

I think is 12 1/7 I'm not sure it's correct but I think it is

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3 years ago

Need help please there is the Question

Levart [38]

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3 years ago

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A hummingbird can travel up to 15 meters per second what is the hummingbirds speed in miles per hour

dexar [7]

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5 0

4 years ago

I need help plz and thank u sm

Alchen [17]

Answer:

5x + 3

Step-by-step explanation:

Since we can see DC is the median of Triangle ABC

So it breaks the into two equal parts

Given

AD = 2x + 5

BD = 3x - 2

Now

AB = AB + BD

= 2x + 5 + 3x - 2

= 5x + 3

Hope it will help :)❤

7 0

3 years ago