Step-by-step explanation:
try 365 I think that is it
Answer:
x=80
Step-by-step explanation:
Take the derivative of C(x) using the power rule
C'(x)=4x-320
Set this equal to 0 and solve for x
4x=320
x=80.
Sign analysis shows this to be a minimum because for values larger than 80 C'(x)>0 and for values less than 80 C'(x)<0
Answer:
X²+16x-63
Step-by-step explanation:
expand out the brackets to get:
X²+9x+7x-63
simplify:
X²+16x-63

Rewrite -1 as a fraction

Cross multiply

Distribute the -1

Add both sides by ax

Subtract both sides by 3

Divide both sides by 3a

Simplify

That's the value of x respect to a. Let me know if you need any clarifications, thanks!
Step-by-step explanation:
First you divide the numerator and the denominator by 10, it leaves you with 1500/21 , now you again divide the numerator and denominator by 3 and you get 500/7.
Remember, you ought to divide the numerator and the denominator only by the numbers which are their common factors or in a more easier way, you only divide them by a number which divides them both simultaneously.