2x + y = 8
x - y = 10
--------------add
3x = 18
x = 6
x - y = 10
6 - y = 10
-y = 10 - 6
-y = 4
y = -4
solution is : (6,-4)
10 root 2
10^2 + 10^2 = 200
200 is 10 root 2
Answer:

Step-by-step explanation:
1) Flip the second fraction and change the operation to multiplication:

2) Cross cancel factors:

3) Multiply:

4) Simplify:

5; 5,000 to 10,000
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Answer:
hi
Step-by-step explanation: