CPhill

...What she said.....

I'm assuming this might be....

(x-2)/4 + 12/x = x/2   ????

Multiply though by 4 and we have

x - 2 + 48/x  = 2x     

Multiply through by x

x^2 - 2x + 48  = 2x^2

Rearranging, we have

x^2 + 2x - 48 = 0

Factoring produces

(x + 8) (x - 6) = 0

Set each factor to 0, and we have that.....  x = 6  and x = -8

I'll leave it for you to check that both solutions "work".....

Hit the "2nd" button......you'll see it on the top tier of buttons......

(279 - 248) /279   =

31 / 279   =  (about 11.1%)

Mainly...by answering questions.....we like correct answers, but, if you make a good effort, we often reward that, too!!!

We also give some points for just "goofing off"....especially if you're witty or you provide us with some deep thoughts for the day !!!!

Remember........ only Chuck Norris (and kitty<3) can successfully divide by zero.....all others are doomed....!!!!

81,129,638,414,606,681,695,789,005,144,064

cubedsqrt250x^7y^3/cubedsqrt2x^2y =

³√(250*x^7*y^3)/ ³√(2*x^2*y) =  ³√(125*x^5*y^2) =  (5x)[³√(x^2*y^2)]

We need to use the sine for this.....we know an angle, an opposite side..... and we need to find the hypoteneuse.....

We have....

sin(15) = 25/h    ...where h =  the hypoteneuse = road length

Multiply both sides by h and divide both sides by sin(15)..so we have...

h = 25/sin(15) = (about 96.6 yds)

rosala is correct, Amonymous......you made a "lucky" mistake.....because 10/1 = 10(3-2).....but..if we had..... 10(7-2) = 10*5, we couldn't claim that it = 10/(7-2)= 10/5.....!!!