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Answer:
False
Step-by-step explanation:
first step is
x+y = 30
x-y = 12
20% of 120 is 25. You have to cross multiply and divide.
Answer:
Option D.
Step-by-step explanation:
The angle of elevation of an object is the angle between the horizontal line and the line from the object to the eye of the observer.
The angle of depression is the downwards angle between the horizontal line and the line from the eye of the observer to the object.
We know that sine angle is given by side opposite to the angle divided by the hypotenuse.
To find:x