Answer:
42°
Step-by-step explanation:
Complementary angles are two angles that add up to 90°
1) 90-48 = 42
Hope this helps! :)
Answer:

Step-by-step explanation:

The formula of perimeter of the rectangle:

Substitute:


The coin should land on heads around 50 times
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Cosine and secant functions are reciprocal, which means

So, if

then

I hope this helps. =)
Tags: <em>cosine secant cos sec relation reciprocal trig trigonometry</em>