"A quadrilateral is a trapezoid if and only if it has exactly one pair of parallel sides."
2 answers:
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Answer: 30° and 330°
<u>Step-by-step explanation:</u>
sec θ =
sec θ =
=
cos θ =
cos θ =
cos θ =
cos θ =
Look at the Unit Circle to see that cos = at 30° and 330° ( which is equivalent to π/6 and 11π/6)
The function will be
where y is the balance, and x is the number of month.
The raph will be a line on the xy-plain which starts at the point (0, 360), and end in the point (72, 0).
Hope it helps.
where y is the balance, and x is the number of month.
The raph will be a line on the xy-plain which starts at the point (0, 360), and end in the point (72, 0).
Hope it helps.