Answer:
3x²-11x-6
Step-by-step explanation:
(3x+2)(-x-3)
Then you Foil, AKA multiply the First Outside Inside and Last and then add them together
3x²-9x-2x-6
A^2+b^2=c^2
20^2+b^2=29^2
400+b^2=841
-400. -400
b^2=√441
b=21
Answer:
Step-by-step explanation:
You want the absolute extremes of the function f(x) = x³ -3x² +1 on the closed interval [-1/2, 4].
<h3>Extreme values</h3>
The extreme values will be either the turning points of the function or the ends of the interval. We must examine all of those. A graphing calculator is helpful for evaluating the function at various points.
<h3>Interval ends</h3>
f(-1/2) = 1/8
f(4) = 17
<h3>Turning points</h3>
The turning points are found where the derivative is zero.
f'(x) = 3x² -6x = 3x(x -2)
This function is zero where the factors are 0, at x=0 and x=2.
f(0) = 1
f(2) = -3
The maximum value is found at the right end of the interval: f(4) = 17.
The minimum value is found at the right turning point: f(2) = -3.
Answer:
4.6in
Step-by-step explanation:
115/50=2.3
2.3*2=4.6
The answering got is x = -3