x+xy^2= 250y
x-xy^2= -240y
2xy^2 = 490y
xy = 245
y = 245/x
Can you take it from here?
=^._.^=
1/8(x^2 + 8x + 4) and x^2 + 8x + 4 will have the same roots.
Awww, thank you. :))
x = sqrt(7 - sqrt(13)) - sqrt(7 + sqrt(13))
x^2 = 7 - sqrt(13) + 7 + sqrt(13) - 2*sqrt(36)
x^2 = 14 - 2*6
x^2 = 2
x = sqrt(2) or - sqrt(2)
However, sqrt(7+sqrt(13)) > sqrt(7-sqrt(13)), so x is a negative number.
x = -sqrt(2)
2.
a + b = 14
ab = 46
(a+b)^2 - 2ab = a^2 + b^2
Take it from here. :))
Plug everything in.
f(x) - g(x) + h(x)
(2x^2 + 3x - 9) - (5x + 11) + (-3x^2 + 1)
.y = (x + 3)^2 - 5
y = 10(x + 3)^2 - 50
x = -3, since -3 + 3 = 0
Oh, I see.
Broth Carrots Beans
750 1/2 300
600 2/5 240
30*50 = 1500
15 dollars is the cost of the box, you have to sell it for 60 dollars to make a 45 dollar profit.
60/50 = 1.25
x^2 + y^2 = x + y + 4
x^2 - x + y^2 - y = 4
(x-.5)^2 + (y-.5)^2 - .5 = 4
(x-.5)^2 + (y-.5)^2 = 4.5
The largest value of x is sqrt(4.5) + .5
