Answer:
10). m∠x = 47°
11). x = 30.96
Step-by-step explanation:
10). By applying Sine rule in the given triangle DEF,
Sin(x) =
Sin(x) = 0.7309
m∠x =
m∠x = 46.96°
m∠x ≈ 47°
11). By applying Sine rule in ΔRST,
x =
x = 30.96
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3.6/12=0.3
each pen costs 0.3 cents
8
8-2=6
6x5=30