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14 / x  = 8 / 9      cross-multiply

9 * 14  = 8 * x        divide 14, 8     by   2

9 * 7  = 4 * x

63  = 4x       divide by  4

63/4  = x

(-3/4)(2x-1)=2-2x    multiply both sides by 4

-3 (2x - 1)  = 4 ( 2 - 2x)     simplify

-6x + 3  = 8 - 8x      add 8x , subtract 3  to /from  both sides

2x  =  5       divide by 2

x  = 5/2

well said

HAHAHA!!!!......

80%

(10x^3y) (-2x^2y^2)^3

(10x^3y) (-8x^6y^6)

-80 x^9 y^7

1>= sin x >= 0

= cuberoot(-6)= - 1.81712

-1.999999999 (continued)

Is 5.5    a pH or a pOH ????

'Shoots' a photo then develops it ....

16 x 6/16  =

(16/16) x 6  =

1 x 6  =

6

cot^2(75°)

Note.....  csc^2(75°)   =  1 + cot^2(75°)      →  csc^2(75°)  - 1  = cot^2(75°)

sin(75°) = sin(30 + 45)  =  sin30cos45 + sin45cos30  =

(1/2) * sqrt(2)/2  + sqrt (2)/2  * sqrt (3)/2  =

sqrt (2) / 4  +  sqrt (6) / 4

sin^2(75°)  =  [sqrt (2) / 4  +  sqrt (6) / 4] =  2/16 + 2sqrt(12)/16 + 6/16  =

1/2  + sqrt(12)/8   =  (1/2   + 2sqrt(3) / 8 )  =  1/2 + sqrt(3)/4   =  [2 + sqrt(3)] / 4

1 / sin^2(75°) =    1 /  [ (2 + sqrt(3) ) / 4]  =       4 /  [ 2 + sqrt(3)] =

[4 * (2 - sqrt(3)) ] /  (  2 + sqrt(3) *  (2 - sqrt(3) ]  =  

[4 * (2 - sqrt(3)) ]  / [ 4 - 3 ]  = 

8 - 4sqrt (3)    = csc^2(75°)

csc^2(75°)  - 1  = cot^2(75°)

8 - 4sqrt (3) - 1  = cot^2(75°)

7 - 4sqrt (3)   = cot^2(75°)

Guest's answer is incorrect......

15x - 3 = 9x + 1    add 3 to both sides

15x  = 9x + 4       subtract 9x from both sides

6x  = 4      divide both sides by 6

x  = 4/6  = 2/3

15x -3 = 9x +1
15x -4 = 9x
24x - 4 = 0
24x=4
x= 4/24
x = 1/6

V  = (4/3)pi (22/2)^3  = (4/3)pi*11^3   ≈ 5572.45 in³

The answer is -1.047303894

10000000000000000000000000000000000x11111111110000000000

1.11111111E53

Just use an online calculator. Lets you type as many numbers as you want. I used the bing calculator.

6(x - 1) = 4(x - 2)      simplify

6x - 6  = 4x - 8     subtract 4x, add 6  from/to  each side

2x  = - 2     divide by 2

x  = -1

10000000000000000000000000000000000x11111111110000000000

1.11111111E53

Just use an online calculator. Lets you type as many numbers as you want. I used the bing calculator.

10/1 * 4/5= 8

Now that we know 8 kids have finished, subtract 8 from 10

10-8=2

So, 2 kids need to finish their ice cream. 

60* (tan(-1)) = -1.04730389568

OR atan(60) = 89.045158746128

atan=tan^-1 

64/44^2

64/(44)^2 = 0.0330578512396694

or 4/121

V_sphere  = (4/3) * pi * r^3   .....so....

36 pi  = (4/3) pi r^3     divide out  pi

36 = (4/3) r^3       multiply by 3/4

36(3/4)  = r^3

27  = r^3       take cube root of both sides

3 in   =   r