Answer:
1. 106.68
2. 27.78
Step-by-step explanation:
1. 1 in= 2.54 cm
42 × 2.54= 106.68
2. 1 kg= 2.20462 lbs
12.6 × 2.2= 27.77825
42 in=106.68cm
12.6kg=27.77lb
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local calls per 1 long distance call.
Local calls
Long distance calls
For 20 long distance calls local call
x + 2 + 57 = 90
x + 59 = 90
x = 31°
x + 2 = 33°
sin 30=14/x
x=14*2
x=28
and
x=√{28²-14²}
x=14√3