Similarities: They both are polynomials of degree 2, both of their graphs is a parabola, both have either 2 or 0 real solutions, they are both continuous functions over R
(DOS= difference of two squares, PST=perfect square trinomial
Differences: PST has three terms, whereas the difference of squares has 2. PST's factors are both the same, whereas DOS's elements are conjugates of each other. DOS can always be factored into two distinct polynomials with rational coefficients, whereas PST has two same polynomial factors.
Answer:
The $3.20 one
Step-by-step explanation:
The $3.20 one is cheaper because you get more.
Answer: 28
Step-by-step explanation:
The mean of 15 numbers = 12
Then , the sum of the numbers = 12x15 = 180
Let the extra number included be 
, then
The new sum = 
And the new total number will increase from 15 to 16
new mean = 13 , so we have :
therefore , the extra number is 28
Answer:
then what?
Step-by-step explanation:
The break-even point is when there is no profit and no loss. Given the two equations for cost and revenue, we simply have to equate the two equations to solve for the unknown value, n. This is shown below:
C = 20n + 134000
R = 160n
R = C
160n = 20n + 134000
140n = 134000
n = 957.14
Among the choices, the nearest answer is D. 957.
