I had to do a few problems. I'm just checking if they are right. Thanks.
2x = 26
x = 13
4x = -12
x = -3
6x = 72
x = 12
8x = 808
x = 101
10x = 130
x = 13
12x = 360
x = 30
3x = 99
x = 33
6x = 96
x = 16
2007-11-14 10:21:00 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
congratulations you are correct
2007-11-14 10:24:08 · answer #1 · answered by Ms. Exxclusive 5 · 0⤊ 0⤋
you ought to locate the derevitive of the formula: f'(x)= 6x^2 - 14x The derevitive is the slope of the function, so whilst the slope is 0, you will the two have a optimum, or a minimum: 0 = 6x^2 - 14x = x(6x-14) -> x = 0 or 6x = 14, x= 14/6 > 2 there is one factor interior the era at x=0. f(0)=9 is a optimum (whilst you're making a comedian strip, or with the aid of closer inspection of things around 0). f'(x) = 6x^2 - 14x < 0 (so f(x) is lowering) for 0 < x < 14/6 and 6x^2 - 14x > 0 (so f(x) is increasing) for 0 > x, for this reason the minimum is the two at x=-2 or at x=2. f(-2)=-27, f(2) = -11, for this reason the minimum is at x=-2. the best fee is f(0) = 9. The least fee is f(-2) = -27.
2016-10-16 13:17:09 · answer #2 · answered by ? 4 · 0⤊ 0⤋
All are correct. Good going!
2007-11-14 10:25:02 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
They r all correct!!!
Congratulation you know how to do these questions
2007-11-14 10:25:11 · answer #4 · answered by tinhnghichtlmt 3 · 0⤊ 0⤋
nice----good jobb -- u seem to b betta at this then i was-- but i alwaiyz acted stupid in class...lol
2007-11-14 10:28:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
all are correct but i dont see why you don't trust your calculator !
2007-11-14 10:32:39 · answer #6 · answered by David 2 · 0⤊ 1⤋
yes !!! good job
2007-11-14 11:16:33 · answer #7 · answered by navya 1 · 0⤊ 0⤋
they're right
2007-11-14 11:01:36 · answer #8 · answered by -violet- 3 · 0⤊ 0⤋