Answer:
Step-by-step explanation:
If the Number of Sales of x units, N(x) is defined by the function:
![N(x)=-5x^3+235x^2-3400x+20000,10\leq x\leq 40](https://tex.z-dn.net/?f=N%28x%29%3D-5x%5E3%2B235x%5E2-3400x%2B20000%2C10%5Cleq%20x%5Cleq%2040)
![N'(x)=-15x^2+470x-3400\\When -15x^2+470x-3400=0\\x=20, x=11\frac{1}{3}](https://tex.z-dn.net/?f=N%27%28x%29%3D-15x%5E2%2B470x-3400%5C%5CWhen%20-15x%5E2%2B470x-3400%3D0%5C%5Cx%3D20%2C%20x%3D11%5Cfrac%7B1%7D%7B3%7D)
Next, we text the critical points and the end points of the interval to see where the derivative is increasing.
![N'(10)=-200\\N'(11\frac{1}{3})=0\\N'(19)=115\\N'(20)=0\\N'(40)=-8600](https://tex.z-dn.net/?f=N%27%2810%29%3D-200%5C%5CN%27%2811%5Cfrac%7B1%7D%7B3%7D%29%3D0%5C%5CN%27%2819%29%3D115%5C%5CN%27%2820%29%3D0%5C%5CN%27%2840%29%3D-8600)
Thus, the rate of change of sales
is increasing in the interval
on 10≤x≤40.
Algebra is number 3 - You have subtracted the measure of angle HKI from the equation.
Transitive property of equality is number 2 - Because both pairs of angles equal 180 degrees, you can set them equal to each other.
Definition of congruence is number 4 - The congruence symbol is in the equation, which tells you that the two angles are congruent.
Angles forming a linear pair sum to 180 degrees is number 1 - 180 degrees is in the equations given and the angles all form linear pairs.
Hope this helps!! :)
Answer:5.5
Step-by-step explanation:
You take the ratio divide then multiply by 2
Answer:
only E is false except that all are true
A,B,C,D are correct