For physics, we use half the smallest division of the equipment used.
For chemistry, it should be the same.
The formula for percent error: delta(x)/x * 100% = delta(y)/y
Hope I helped :)
Answer:
x = ±8.43 (to 3sf)
Step-by-step explanation:
Let this number be x.
x² + 10 = 81
x² = 81 - 10
= 71
x = ±√71
= ±8.43 (to 3sf)
Because angle L is the common angle between lines JL and KL, your answer is angle L. Hope that made sense.
