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Seriously? what kind of math are u in?

4+4=8

The cube root of 64 is 4 (because 4x4x4 = 64).

The cube root of 125 is 5 (because 5x5x5 = 125).

So, all the numbers between 64 and 125 have a cube root between 4 and 5.

Replacing x witn -6:

     -6  =  y² - 5y                               

      0  =  y² - 5y + 6                         (add 6 to both sides)           

      0  =  (y - 3)(y - 2)                       (factor)

               y = 3    or   y = 2

What is the question?

7^(-2)  =  1 / 7²

The negative sign in the exponent means that the number is in the wrong location (numerator or denominator).

12^-4  =  1 / 12^4

and:  1 / [3^-5]  =  3^5

If the function is:            y  =  -3,24x² + 242.1x - 738.4

                        y + 738.4  =  -3,24x² + 242.1x                                 (move the constant to the other side)

                        y + 738.4  =  -3,24(x² - 1345/18x          )                  (factor out -3.24)

y + 738.4 + 1809025/1296 =  -3,24(x² - 1345/18x + 1809025/1296)   (complete the square)

            y + 4443319/2160  =  -3.24(x - 1345/36)²                             (factor)

Vertex( 1345/36, -443319/2160) 

funny 

Percentage = Part / Total x 100

Percentage = 36 / 150 x 100  =  24%

If it's an arithmetic sequence, the sum is:  S = N(F + L)/2

    where:          S = Sum          N = Number of Terms         F = First Term          L = Last Term

S = 13(14 + 79)/2  =  604.5     <---- Provided that it is an arithmetic sequence.

A boring subject that makes you use your brain power.

The answer is: i dont know

What is 1 + 1?

multiply like this is easier to find the answer, mutiply each number and the exponets should be added this easier way has helped me 

2s/s^2-2s+1

-2/s^2-2s+1

8==============D ----

11.666666666666666666...

I assume you'd like to find the solution to this system

x+4y =   5 

x+2y =   7              subtracting the second equation from the first, we have

    2y =  -2             divide by 2 on both sides

y = -1

To find x just substitute this y value into either equation...... using the second one, we have

x + 2(-1) = 7

x - 2 = 7     add 2 to both sides

x = 9

So, the solution is (9, -1)

use the force 

Assuming that we are talking about radians, tan(5/6) = about 1.1

However.....I think you might have meant.... tan(5pi/6)......if so....this is the same as tan(150°) = -1/√3

Thanks Melody and anonymous 

Thank you Alan. 

Do you mean to solve the equation: 10-2x=4x-6?

Adding 2x+6 on both sides of the equation we get 6x=16

and dividing 6  on both sides gives x=16/6=8/3