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use a site called mathway

Thanks for the help!!!!

Hi, Guest! This seems like a really hard problem. This is just a hint to help you.

I thought of this a little like the Pythagorean Theorem. If you've got some of those 3-D shapes at home, they help. I filled those in with water, and poured it into the triangle.

f(x)   +  g(x)  =  -2 + x

(x^3 - 2x - 2)  + g(x) = -2 + x

g(x)  =  (-2 + x)  - (x^3 - 2x - 2)

g(x)  =  -2  + x  - x^3  + 2x  + 2

g(x)  =  -x^3 + 3x

That was correct, thank you! :D Have a great day!

a=10; b=5;c=a nCr b; if(c==4353548972850, goto4, goto5);printc, a, b; a++;if(a<100, goto2, 0);a=10;b++;if(b<100, goto2, discard=0;

[n, k =55, 14] and [n, k =55, 41]

The dog has been running at 10 mph  for 1 hour

10 m/ hr  x  1 hr = 10 miles

A    x  AND  y are  positive

B    x is negative    y is positive

C    x AND y are negative

D    x is positive   y is negative

CPhill, your calculations seem accurate, but why is the answer 277in^2?

The circumference is 29.5 inches (You can memorize this)

Therefore, the diameter would be around 9.4 inches, which makes the radius about 4.7 inches.

The surface area would be around 277.59 in^2, or 278 in^2. I think you had a rounding mistake, CPhill!

Hope this helped!

Mmmmm...after an internet search.....I found that an NBA ball has a circumference  of 29.5  in

So....to  find  the radius we  have

29.5  / [2pi]   ≈  4.695  in  =  radius

So.....the surface area  =

4 * pi * radius^2  =

4 * pi  * ( 4.695)^2  ≈  277  in^2

I assume  this is  :

        5

__________    multiply top / bottom  by   the conjugate  2 +  √3 

   2  -   √3

        5  [ 2 + √3 ]                              5 [ 2 + √3]            10 + 5√3

    __________________  =       ____________  =    _________  

      [ 2 - √3]  [ 2 + √3 ]                        4  -  3                     1

A =  10   B  = 5   C  =  1

A  +  B    +   C    =       16

I would multiply both the numerator and the denominator by [2 + sqrt(3)].  That would make the denominator 1 and then you just work on the numerator. 

Look  at the fourth  one

The discriminant  =  (-30)^2 - 4(9)(25)  =  900 - 900  =   0

This  indicates a double root

The (double) root  is        -B / [2A]  =  - (-30) / [ 2 * 25 ]  =   30 / 50   =   3 / 5

Well the method was detailed.....you should be able to do it yourself now....  

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)      this is the quadratic formula....you should know it   

b^2 - 4ac      is the discriminant      if  it = 0   there is one (double) root

                                                        if it = perfect square there is two roots

                                                        if it <0  there are 2 imaginary roots   

                                                        if it > 0  there are two real roots 

6.370 x 10³  km        6.370 x 10⁶  m

Yes... but the problem was wrong... the correct problem is this one...

Thx so much but i accidently posted something wrong in the problem so...

https://web2.0calc.com/questions/pls-help_106

We have  that

y  =  k / √x

So

15  =  k / √24

So

k =  15√24

And when y  = 3  we have that

3   =   15√24 / √x          divde both sides  by  15√24

   3                 1

_____  =      ____       cross-multiply

15√24           √x

3√x  =  15√24      divide both sides  by 3

√x =  5√24          square  both sides

x = 25*24  =  600

10 more than twice as many  =  10 + 2 x 50  =  10 + 100  =  110

What about the air inside the ball? Technically that air is within the cube too.  

The question should've stated that it was a solid ball.  

what

If we have a repeated root  the discriminant  will  =  0

Discriminant of first polynomial  = 18^2  - 4(-1)(81)   =   not zero

Discriminant of second polynomial    = (-3)^2 - 4(3) (-168) =  not zero

Discriminant  of  third polynomial  =  4^2 - 4(1)((-4.25)  = not zero

Discriminant of  fourth polynomial  = (-30)^2 - 4(1)(9)  =  not zero

Discriminant of fifth polynomial  =  (-14)^2  - 4(1)(24)  =  not zero

The first polynomial WOULD  have a repeated  root if we had  x^2 + 18x + 81   since  it can be factored as

(x + 9)^2

The repeated root  =  - 9

Thanks for the help!

Nice CPhill!!!!! I want to add on to what you said.

If the degree of f(x) is 8, then no matter what x is, the degree will always be 8.

g(x) must half a degree 9, which we know thanks to CPhill. A Degree 8 plus Degree 9 will always result in the larger one--- The Degree 9!!!