The first one is
left at 2(A + B)
The second one is
A^2 + 2AB + B^2 The expanded version is greater than A^2 + B^2 See below for why.
(A + B)^2 / [2(A + B) ] = (A + B)/2 which is what is left over when (A + B)^2 is divided by the first one.
(A + B)^2 / (A^2 - B^2) = (A + B) * (A + B) / [(A + B) (A - B)] = (A + B) / (A - B) which is less than (A + B)/2 for (A - B)>2
The third one is just A^2 + B^2 which is smaller than the second one by an amount equal to 2AB. Since A and B are both > 0, 2 AB must be > 0
A^2 - B^2
Answer:
80 minutes
Step-by-step explanation:
Work done by Mark in 1 minute = 1/120
Work done by Alexis in 1 minute = 1/240
Work done by Mark and Alexis in 1 minute = 1/120 + 1/240
They both can load all the packages in 80 minutes.
Answer:
b
Step-by-step explanation:
False x is an angle Answer
Answer:
-9, 15
Step-by-step explanation:
Add them both together to get your answer.
