It is different because partial products is you part the number to get the answer.They are the same because both strategies give you the same answer. Hope it helps
Think it's done like this but im not sure if the tan2x part is correct
Yes, 15 for both sides and 7 for the bottom. It will make an Acute Isosceles Triangle.
Answer:
C. (2,-3) is a solution to the system of linear equations
Step-by-step explanation:
3x - y = 9
4x + y = 5
---------------add
7x = 14
x = 14/7
x = 2
3x - y = 9
3(2) - y = 9
6 - y = 9
-y = 9 - 6
-y = 3
y = -3