All Answers 356020 Answers

No it isn't!  EP has correctly answered the question you supplied.  If you think that answer is incorrect you might well have specified the question incorrectly.

5x+6y=11     arrange to y = mx+b form      m = slope

6y = -5x +11

y = -5/6 x + 11      slope,  m  = - 5/6        perpindicular slope = - 1/m   =   -1 / ( -5/6) = 6/5

New line     y = 6/5 x   + b      sub in the point   15, -7   to calculate 'b'

But its incorrect

answer=137

x = stickers 

Ken = x-36

Joan = x+65

x+65=2(x-36)

x+65=2x-72

137=x

They both had 137 stickers in the beginning.

Hope this helps:)

This has been answered by EP. 

The domain is all real numbers EXCEPT for the value of 'x' that would result in the deniminator being = 0

    Can you take it from here?     

Hi Jenny,

This is almost exactly the same as the one I just answered for you.

Can't you copy the technique and try it for yourself?

Give it a go    

Like so:

No not all 4

Let x = 0.999... etc.

Then 10x = 9.999... etc.

Subtract:  10x - x = 9.999... - 0.999...

 or                 9x = 9

so                   x = 1

You have a history of posting copyrighted material.  I expect this is more of that.

What does linear mean?  If you do not know, google it.

Gradient is rise over run.  There would be a multitude of sites and youtube clips explaining this. 

I'm quite sure you can attempt this question on your own.

All four  A, B, C, and D 

x/2 - 80 = 3x/8

x = 640

Children = 320

Adults = 320            (Women = 240    Men = 80)

Use this to find your answer

I set up two equations, each with r and theta then I solved them simultaneously.

I only needed r so you can eliminate theta.

What is the greatest possible whole-number value of the congruent sides lengths?

Hello Guest!

There is no largest integer value. The congruent sides can be infinitely long.

  !

 How many pairs of congruent triangles are in the figure?

Hello Guest!

The diagonals created two pairs of congruent triangles.

  !

If x, y and z are positive with xy=24, xz=48 and yz=144, what is the value of x+y+z?

Hello Guest!

\(xy=24\\ xz=48\\ yz=144\\ 24-y=48-z\\ \frac{144}{z}=z+24-48\\ z^2-24z-144=0\\ z=12(1+\sqrt{2})\\ \color{blue}z=12+12\sqrt{2}=28.9706\)

\(24-y=48-z\\ y=z-24\\ y=12(1+\sqrt{2})-24\\ \color{blue}y=-12+12 \sqrt{2}=4.9706\)

\(x = \frac{48}{z}=\frac{48}{12+12\sqrt{2}}\\ \color{blue}x=1.6569\)

\(\color{blue}x+y+z=35.5979\)

  !

You are very welcome.

What is the sum of all possible values of x such that 2x(x - 1) = -50?

Hello Guest!

The sum of all possible values of x is

\(\dfrac{1}{2}(1+3i\sqrt{11})+\dfrac{1}{2}(1-3i\sqrt{11})\large\color{blue}=1\)

one  <===== via quadratic formula

thank u! 

\(g(x)=x-8\\ (f o g) (x)=f(g(x))=f(x-8)\\ h(x)=f(x-8)=\frac{1}{(x-8)^5}\\ so\\ f(x)=\frac{1}{x^5}\)

Circle equation about the origin     x^2 + y^2 = 67^2

Line equation between the two points     y = 78/87 x -78    <===== insert this value of y   into the circle equation to find the x values where the line crosses the circle.

   Use these x values in the line equation (easiest) to calculate the y values

     Use distance formula to calculate the distance between the points ......YOU can do the work

          I find an answer AROUND  66 miles    

               what do you find?

You can also use graphical methods to find the intersection points (very easy) ....then distance formula between the points of intersection...

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