Answer:
(3a-1)(3a+1)
Step-by-step explanation:
We can quickly see with this problem that it is the difference of two squares as 9a^2 is (3a)^2 and 1 is 1^2 and therefore can factorise quickly using this rule.
x^2-y^2 = (x-y)(x+y) where x = 3a and y = 1
In order to convert a mixed number into its simplest form you must first divide the denominator by the numerator then convert the answer back to fraction form.
in order to concert a decimal into a fraction you must first find out how many times the decimal goes into one hundred then with the rest of the number you repeat until you finally get you fraction.
Answer:
.75 cents
Step-by-step explanation:
Because it wouldn't matter which direction you go in first. For example would it matter if you took two steps left then three forward or if you took three forward and then two left. It wouldn't because you would end up in the exact same place.
Answer:
Step-by-step explanation:
- Average time for New York = 40 minutes
- Average time for United States = 25.5 minutes
<u>The difference:</u>
<u>Correct choice:</u>
