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Explanation:
We use cosine to tie together the adjacent and hypotenuse
cos(angle) = adjacent/hypotenuse
cos(38) = x/21
21*cos(38) = x
x = 21*cos(38)
x = 16.5482258257411
x = 16.5
Answer:
-3
Step-by-step explanation:
The answer is
F = x - 5 + 1/5
C.
To find the area of a rectangle, times the length and the breadth together. So, it would be 16×5=80. option C is 80.