When a national sample of heights of kindergarten children was? taken, a student was told that he was in the 20th percentile.
1 answer:
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First, we must find the common denominator (12) ✵
10/12-6/12 ✵ ✵ ✵ ✵
Now, why 10? ✵ ✵ ✵
Because we CAN'T just take the denominator and change it; we must change both the denominator AND the numerator:
✵ • - ○
4/12 ✧ ✩ ✶ ✺ ✱
We can simplify, or reduce, this fraction: ✱ ✱
1/3 ✩ ✦ ✤
I hope it helps!
Answer:
- Given and explained below.
question 4
using sine rule:
question 5
using cosine rule:
