Answer:
see explanation
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the given angles from 180 for A
A = 180° - (90 + 48)° = 180° - 138° = 42°
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tan48° =
= 
Multiply both sides by a
a × tan48° = 18 ( divide both sides by tan48° )
a =
≈ 16.2 ( to the nearest tenth )
-----------------------------------------------------------
sin48° =
= 
Multiply both sides by c
c × sin48° = 18 ( divide both sides by sin48° )
c =
≈ 24.2 ( to the nearest tenth )
8/10 > 3/4 > -3/4 > -7/10
123x - 23(-1 + x) = 14
Simplify.
123x + 23 - 23x = 14
Subtract 23 from both sides.
123x - 23x = 14 - 23
Simplify.
100x = - 9
Divide both sides by 100.
x = -9/100
~Hope I helped!~
128÷6 = 21.3
21.3×2= 42.6
42.6 is the answer