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Infinity is not a number TJM

You can not think of it like an ordinary number - it does not work that way.

so do find this wed do it like

40/100 x  240,000

now cut the zeroes of 40 , 100 and 240000

so we have!

=4 x 24,000

now simply multiply!

but CPhill wheres the 100...im suspecting you all dont like 100 hun?

oh no....all my brain work has just gone  a waste!

It means you don't include a numerical approximation for pi in your answer, you just leave pi as pi.  

For example, if you were asked to turn 45 degrees into radians, leaving your answer in terms of pi, you would express the answer as pi/4 radians, you wouldn't go on to say this is approximately 3.14/4 =  0.785 radians.

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uuuugh it is tu dificult fur mi i am sorry i cant jelp yu 

First consider the number of ways they can be seated so that no boys are next to each other.  The only way this can happen is if the boys are on seats 1, 3, 5, 7 and 9.  There are 5 boys who could go on seat 1.  For each of these there are 4 boys who could go on seat 3 ...etc., so there are 5! ways of arranging the 5 boys on these seats.  For each of these there are 4! ways of arranging the girls on seats 2, 4, 6 and 8.  So in total there are 5!*4! ways of arranging everyone on 9 chairs such that no boys sit together.

Now there are 9! ways of arranging everyone on the 9 chairs, regardless of who sits next to whom.

This means there must be 9! - 5!*4! ways of arranging everyone on the 9 chairs such that at least two boys are next to each other.

$${\mathtt{9}}{!}{\mathtt{\,-\,}}{\mathtt{5}}{!}{\mathtt{\,\times\,}}{\mathtt{4}}{!} = {\mathtt{360\,000}}$$

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The points A(5,-3), B(-2,4) and C(-1,7) are three vertices of a parallelogram ABCD. Find the coordinates of vertex D.

$$\vec{D}=\vec{B} + (\vec{A}- \vec{B}) + (\vec{C}- \vec{B}) \\
\vec{D}=\not{ \vec{B} } + \vec{A} -\not{ \vec{B}} + (\vec{C}- \vec{B}) \\
\boxed{ \vec{D}=\vec{A} + (\vec{C}- \vec{B}) }\\\\
\vec{D}=
\left(
\begin{array}{c} 5\\-3\end{array}
\right)
+ (
\left(
\begin{array}{c} -1\\7\end{array}
\right)
-
\left(
\begin{array}{c} -2\\4\end{array}
\right)
)\\\\
\vec{D}=
\left(
\begin{array}{c} 5+(-1)-(-2)\\-3+7-4\end{array}
\right)\\\\
\vec{D}=
\left(
\begin{array}{c} 5-1+2\\0\end{array}
\right)\\\\
\vec{D}=
\left(
\begin{array}{c}6\\0\end{array}
\right)\\\\$$

What is the integral 1/x ?

$$\small{\text{
We substitute : $ x = e^u \qquad \ dx = e^u\ du
$
}}\\
\small{\text{
$\int {\frac{1}{x} }\ dx = \int{\frac{1}{e^u} }\cdot e^u \ du = \int{1}\ du = u
$
}}\\\\
\small{\text{Back substitute :
$\int {\frac{1}{x} }\ dx = u \qquad u = \ln{(x)}
$
}}\\
\small{\text{
$\int {\frac{1}{x} }\ dx = \ln{(x)} + c
$
}}$$

The volume of the pyramid is

9600 = (1/3)s^2 h     where h is the height and s is the length of the side of the square base...so we have

9600 = (1/3) s^2(32)    multiply by 3 and divide by 32

(3/32)9600 = s^2

900 = s^2      take the square root of both sides

30m = s

So...the perimeter of the base woulld be 4s  = 120m

As to how many steps it would take to wlk around the base.....that would depend upon the length of each step......!!!

Good try, rosala....but I think we  need this....

The interest accrued is just

I = Prt =  2200(.034)(5.5)  = $411.40

So...this added back to the principal of $2200 gives us their worth of......  $2611.40

That's some pretty "creative" math, rosala......!!!

But.....remember..... √a *√a  = a      when a ≥  0   ....so......

√5 * √5   = 5 

Melody seems mostly immune to stupid people, so she’s not “afended”

However, most of us are offended and nauseated ヽ(＾°̥̥̥̥̥̥̥̥＾‶)ﾉ

by your very presence.

Recommend user name: today i learned how to button my pants and my lip

So I assume you're here.........

log₅ X  ≤ -1

This says that 

X  ≤  5^-1

X  ≤ 1/5

ok!

so the square root of 5 is 

√5 = 2.2360679774997897

now lets get its 5 times so

2.2360679774997897^5 = 11.1803398874989485

now lets take out the square root of this!

√11.1803398874989485 = 3.3437015248821101227

There you go ! your answer is $$3.3437015248821101227$$

$$frui!$$

It's the square root of 25, so 5, basically

i think we will solve this like .....

the formula to find simple interest is 

PRT/100

thats 

principal * rate * time/100

now lets put the numbers

principal= 1200

rate= 3.4%

time 5.5 years

so

1200 * 3.4 * 5.5 / 100

now divide them all!

= 1122 / 5

= 224.4

so thats the interest he gets!

(1/2)x + (4/5)x =2   simplify

5/10x + 8/10x = 2

13/10x  = 2    multiply both sides by 10/13

x = 20/13

Nice pic, Melody......you have something in common with Picasso.......you're both into "cubism"....

We need to find the radius.....

The volume is given by

Vcylinder = (4/3) pi r^(3)   ....so we have

3600pi^3  = (4/3)pi r^3      .....multiply by (3/4) and divide by pi

(3/4)3600pi^2  = r^3

2700pi^2  = r^3       take the cube root of each side

r = 29.87

To find the surface area (inckuding the top amd bottom), we have

Sa = 2pi (r * h + r^2)     where r is the radius and h is the height

Sa = 2pi( 29.87 * 16 + 29.87^2)  =  8608.82 cubic inches

In terms of pi basically means in terms of 3.14

3(10)=6x

30= 6x

[30= 6x] /6

x= 5. each people will get 5 balloons