One month Reuben rented movies and video games for a total of . The next month he rented movies and video games for a total of .
1 answer:
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Answer:
Two distinct real solutions.
Step-by-step explanation:
Given the equation in the form , you need to find the Discriminant with this formula:
For the equation you can identify that:
Then, substituting these values into the formula, you get that the Discriminant is:
Since , then
has two distinct real solutions.
Answer:
sin -115° = -0.91
Step-by-step explanation:
Point A is (cos 115°, sin 115°). Since cos 115° = -0.42 and sin 115° ≈ 0.91, it means that the coordinates at point A is (-0.42, 0.91).
As for point B which was revolved around -115°,
the coordinates will be similar to point A but you just have to change the negative.
B(cos -115°, sin -115°) = B(0.42, -0.91)
