Answer:
The answer is:
which agrees with the last answer option (D) in the list.
Step-by-step explanation:
In order to add rational expressions, we need to express them with the same denominator. Therefore we examine what factors there are in the first denominator, which happens to be a difference of squares which is readily factored out as:
the second denominator consists of only one of these factors: 
, then in order to express both rational expressions with the same common denominator, we multiply numerator and denominator of the second fraction by the factor: 
Then we get two expressions that can be easily added as shown below:
Answer:
i need a tutor too .
Step-by-step explanation:
Answer:
-152
Step-by-step explanation:
How to you explain multiplication? You take the numbers and you multiply them. I would recommend getting a scientific calculator
Answer:
Step-by-step explanation:
Given
--- apothem
Required
The area of the square
The relationship between the apothem (a) and the length (L) of 1 side of a square is:
Make L the subject
Substitute
The area is then calculated as:
So:
Let f, s, m represent my father's age, my son's age, and my age, respectively.
.. f = 5s . . . . . . . . . . . . . . my father's age is currently 5 times my son's current age
.. s +(f -m) = 8 +m . . . . . when I'm as old as my father, my son will be 8 years older than I am now
.. f +m = 100 . . . . . . . . . the sum of my age and my father's is 100
These can be rewritten into a matrix form that makes solution using a calculator easier.
.. f -5s +0m = 0
.. f +s -2m = 8
.. f +0s +m = 100
A calculator shows the solution to be f=65, s=13, m=35.
My son is now 13 years old.
