Option D:
Solution:
Given data:
Let the unknown degree be x.
To find the degree x:
Cancel the common factor 7 in the numerator and denominator.
Using trigonometry basic formula,
we know that .
So, x = 60°.
The unknown degree measure is 60°.
Hence option D is the correct answer.
It comes from D, from bank premiums.
The vertical line is solid, so it must contain the solution so the inequality must contain equal to.
Because the shaded region is to the right of the line the solution has to be greater than.
The equation would be X ≥ -2