Answer:
Step-by-step explanation:
C(x)=2x^(2)-24x+720
Slope = 
Differentiating to get the slope;
= 4x - 24
Lowest cost is when the slope is zero, therfore ;
⇒ 4x-24 = 0
⇒ x = 6
substituting for x
c(6) =
-24(6)+720 = 648
Lowest cost is $648
Answer:
Its c. c = 50.
Step-by-step explanation:
First, we need to figure out what the equation equals.
7 + 7/7 + 7*7 - 7 = x
PEMDAS
Parentheses, exponents, division/fraction, addition, subtraction.
7/7 = 1. So equation changed into 7 + 1 + 7*7 - 7 = x.
7*7 = 49. So equation changed again into 7 + 1 + 49 - 7.
Lets calculate it. 7 + 1 = 8 + 49 = 57 - 7 = 50. x = 50.
c is the only one who has a calculation of 50.
I don't remember what is a extraneous solution, but i hope it helps
Very easy to do this.
60/12 is your fraction.
Multiply numerator and denominator by the same number.
60*2/12*2 = 120/24
120/24 = 5
You can also simplify.
60/12 = 5
12/12 = 1
5/1 = 5
60/12 = 5