Answer:
The answer is B
Step-by-step explanation: Hope this helps
Answer:
A.
Step-by-step explanation:
Given
Required
Determine the time
From the question, we understand that:
This question implies that we make t the subject of formula.
Divide both sides by r
The equation becomes:
Reorder the equation.
<em>The correct option is (a) </em><em></em>
y = 42°
Because the angle at the side of right angle will also be right angle or 90°
Sum of all angles of a triangle = 180°.
So, 48° + 90° + y = 180°
=> 138° + y = 180°
=> y = 180° - 138°
=> y = 42°