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volume of cylinder = (area of base) * (height)

2π * radius = circumference

2π * radius = 18π

radius = (18π)/(2π)

radius =    9    feet

volume of cylinder = (π * 9²) * (10)     cubic ft

volume of cylinder = (π * 81) * 10       cubic ft

volume of cylinder = 810π                  cubic ft

volume of cylinder ≈ 2544.690           cubic ft

Theoretical probabilty.......the blue should come up 3 times.....so the theoretical probabilty is 3/12  = 1/4

Experimental probability.....the blue comes up once.....so the experimental probability is 1/12

66 is the sum of 21 and h .

66 = 21 + h

If you need to actually find what Han's savings is..just subtract 21 from both sides of this equation. :)

a. 

tan (45°)  = 1      

sec (45°)  =  √2

So    tan^2 (45°) =  1^2  = 1

And  sec^2(45°)  =  ( √2 ) ^2  = 2 

So

tan^2 (45°)  + 1  =  sec^2(45°)

1    +   1   =   2

Sorry.....I don't understand what's being asked for in "b"

to do that do 3 * 7

40% off means that it is now worth 60% - .60 -  of its original cost

So it now costs

$80  * .60   =  $48

That was a better copy

I do this daily

Since the discount is 40% off,

the sale price will be 100% - 40% = 60% of the regular price.

60% of $80 = 0.6 * $80 = $48

im a sophmore and im curently failing algebra so yea imma be on this sight alot

More warm wishes...

You can never send you many!!

Lol! I am still in high school....though just barely!! 

But I really appreciate it! 

are you a math major or something you explain it so well

We want to split 128 into it's prime factors.

\(\sqrt{128}=\sqrt{2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2}\)

Then we can rewrite this as:

\(=\sqrt{2\cdot2}\cdot\sqrt{2\cdot2}\cdot\sqrt{2\cdot2}\cdot\sqrt2\)

Now..replace each  \(\sqrt{2\cdot2}\)   with 2

\(=2\cdot2\cdot2\cdot\sqrt2\)

Multiply the numbers outside the radical together.

\(=8\cdot\sqrt2 \\~\\ =8\sqrt2\)

8rad2

Just teasin ya 

Royal jester?

Is that what ya call yourself these days? 

thx 

Clown you werent happy when someone claimed they were you.

I did it using the LaTeX button right next to the image button...

Erase the stuff that is already inside and then click the " Math " button in the top left. At the bottom of the list there is a little picture of a square root. You can just click that and then type the number that you want to go underneath between the {} s.

Also..you can copy and pase this: √[   ]

And just type what goes under between the parenthesees :)

Or.....you can just type sqrt(  ) 

Why should we do that

Ya why

thanks that helped alot

also how you get the radical sign 

This isn't an equation since there is not an equal sign..but it is an expression.

And we can distribute the 12 to each term in parenthesees like this:

12(4b + 3)

(12)(4b) + (12)(3)

48b + 36