Answer:
0.002M
Step-by-step explanation:
2.7= -log(H^+)
-2.7=log(H^+)
10^-2.7 M=H^+
0.0002M=H^+
(3+a+2) (a+2-3)
(5+a) (a-1)
5a-5+a^2-a
Rearrange and combine like terms
a^2 +4a-5
This would be the set of rational numbers.
When dealing with money, we deal with parts of dollars, written as decimals. Decimals can be written as fractions, so these are rational numbers.
Answer:
Just multiply the equations
Step-by-step explanation:
for example num 1, 25 x 10 = 250 then 250 x 10 which is 2,500
he has 29 dollars because there is now $25 plus the $4 dollars of debt he paid off.