Answer:
A) because b=c it is an equlateral triangle.
The interior Angles of a triangle is always equal to 180 .
Therefore 180-38 =142
because B=C
142÷2 =71
Given that 
, and 
, this first step can be to make the equations equivalent to one another. As you can see, each equation is equal to a constant, e. Therefore, we can conclude that the equations can be equal to one another as well ( transitivity ).
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Nice and simple question we have here! The step that can be used to find the solution should be 
.
Answer:
16
Step-by-step explanation:
baámmáy tính
Well to solve this you write out three equations
x+(x+1)+(x+2)=1623
then
3x=1620
x=540
so the three consecutive integers are 540,541, and 542.
Answer:
x = 6.6
Step-by-step explanation:
law of cosines:
x² = b² + c² - 2ac · cosX
x² = 5² + 8² - 2(5 · 8) · cos 55°
x² = 25 + 64 - 80· cos 55°
x² = 25 + 64 - 45.89
x² = 89 - 45.89
x² = 43.11
x = √43.11
x ≈ 6.6
