02:32:00

Mathematics

1 answer:

german3 years ago

7 0

The volume is given by

$V=\pi hr^2$

Since the height is 3 times the radius of the base, we can substitute $h=3r$ :

$V=\pi (3r)r^2=3\pi r^3$

And we know that the volume is $24\pi$ (I'm actually assuming that there's a typo in the question, otherwise the options wouldn't match):

$24\pi=3\pi r^3 \iff r^3=8 \iff r=2$

The height is 3 times the radius, so it is

$h=2\cdot 3 = 6$

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Goshia [24]

Answer:

Your table might look something like this:

The dads steps:

Sons steps:

You can notice the pattern. If dad walks 3 steps, son walks 5. If dad walks another 3, son walks another 5. And so on. This means dad walks 12 steps when the sin walks 20 steps.

Step-by-step explanation:

The ratio is 3:5. This means dad wlaks 3 steps so son must walk 5 steps basically. So.......... You can now create the table. Y I just have to multiply or divide each side ( of the colon:) so. Whatever you do to one side, you do to the other side. If you x3 on one side, you do it to other. Same goes for division. In the 'table' I did above, I x2 to get 6 and 10. Then I took the 3 and the 5 again and timsed those by 3. You can also change the 6 and the 10. So:

3:5

Then x2

6:10

Then I take the top layer (you can either choose to change the top layer, or layer above as long as you do the same thing to each side. Remember, only x and ÷. No + or-.) and I x3

9:15

Then I could take 9 and 15 and x5

45:75

It's crazy that all these. Ratios mena the same thing! 45 steps from dad would take the son 75 steps. You can also divide the last ratio of 45:75 to find the one you started with, 3:5.

So you get the idea.

It is probably best to do what I did in the table in the answer part because I did a pattern. Take the top layer, and x2, then x3, then x4, ect. Rather then doing random things.

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3 years ago

Human visual inspection of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the nu

olga_2 [115]

Answer:

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