Given:
The three points are (1,2), (2,3) and (-2,-11).
To find:
Whether the given points are collinear.
Solution:
Let as consider the three points are A(1,2), B(2,3) and C(-2,-11).
If these three points are collinear, then area of
must be 0.
Area of
,







Therefore, the given points are not collinear.
Answer:
1 1/4
Step-by-step explanation:
Answer:
No real solutions
Step-by-step explanation:
Using the quadratic formula, you will end up with a square root of a negative number in the numerator. Hence there is no real solution.
see attached.
Answer: Choice B
95 - 1080n for any integer n
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Explanation:
Notice how 1080 is a multiple of 360 since 360*3 = 1080. The other values 1450, 780 and 340 are not multiples of 360. For example 1450/360 = 4.02777 approximately. We need a whole number result to show it is a multiple.
Therefore, choice B shows subtracting off a multiple of 360 from the original angle 95. In my opinion, it would be better to write 95+360n or 95-360n to make it more clear we are adding or subtracting multiples of 360.
Choice B will find coterminal angles, but there will be missing gaps. One missing coterminal angle is 95-360 = -265 degrees. So again, 95-360n is a more complete picture. I can see what your teacher is going for though.
Answer: The first graph
Step-by-step explanation:
It's the first one. I don't know how to explain, haha.