You "distributed" the negation inside the parenthesis. Let's focus on the
part.
We can distribute the negation inside the parenthesis by negating every term, and switching and with or, and vice versa. So, you have

Of course, writing
is improper, I was just stressing the fact that we distributed the negation to every term in the parenthesis. So, since a double negation cancels out, you're left with

which of course implies that

Edit: I actually derived the expression in the opposite order, but since they are equivalent, it doesn't really matters where you start from and where you get to. Anyway, if you actually want to derive
from
, you simply have to negate the first parenthesis and distribute the negation as discussed.
To divide a small number by a bigger number, just see how many times the smaller number fits into the bigger number.
Answer:
2350
Step-by-step explanation:
23.5 × 100 move the decimal point right by 2 because there's two 0
Answer:
the amount the stock changed over the day = $29
Step-by-step explanation:
The stock cost $122 at the start of the day . At the end of the day it cost $93. The amount the stock value changed can be calculated below.
The initial amount of the stock that days was $122 but at the end of the day it changes to $93. This means the stock cost decreases over the day.
Initial cost of stock at the day = $122
Final cost at the end of the day = $93
the amount the stock changes over the day = initial cost of stock at the day - final cost at the end of the day.
the amount the stock changes over the day = 122 - 93
the amount the stock changed over the day = $29
Generally, the stock decreased over the day.