Answer:
Step-by-step explanation:
Isaiah Let's solve this by rewriting the actual measurements the two boys have with their uncertainties. Krisann has a measuring tape to the nearest quarter inch. So his measurement may be off by half that, or and eighth of an inch. So his measurement is 27.75 ± 0.125. Isaiah has a measuring tape to the nearest eighth inch. So his measurement may be off by up to a sixteenth of an inch. So his measurement is 27.75 ± 0.0625 Now which is more precise, 27.75 ± 0.125, or 27.75 ± 0.0625? The answer is pretty obvious with 27.75 ± 0.0625 being the more precise measurement. And that value is from Isaiah.
Answer:
1 is A 2 Is B
Step-by-step explanation:
I hope this helps
Answer:
2.8
Step-by-step explanation:
using cosine rule
= 
s =
= 2.842 = 2.8
Let n be the number 18=60% of n
18=0.6n
18/0.6=n
30=n