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Semmy [17]
2 years ago
15

If a = 6, b= 7.5 and c= -2, calculate: a + b + c

Mathematics
2 answers:
aleksandrvk [35]2 years ago
6 0

Answer:

This is your answer ☺️☺️. If I'm right so,

Please mark me as brainliest. thanks!!!

Rasek [7]2 years ago
6 0

Answer:

11.5.......................

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Which of the following best explains why
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We can see values of angles in degrees first

\frac{5\pi}{6}   = \frac{5 \times 180}{6}= \frac{900}{6} = 150°

Similarly

\frac{5\pi}{3}   = \frac{5 \times 180}{3}= \frac{900}{3} = 300°

Now reference angle means positive acute angle they will have

As we can see in attachment 150° lies in second quadrant so its reference angle will be 180°-150° = 30° from x axis line as shown.

Where as angle 300° lies in fourth quadrant so its reference angle will be 360° - 300° = 60° from x axis as shown. So clearly both reference angles are different . So 1st choice " angles donot have same reference angle" best explains it

Choice (2) and (3) are incorrect as tan is positive only in first and third quadrants and angle 300° is in fourth quadrant.

since angle 150° is in second quadrant and 300° is in fourth quadrant so both will have same negative sign so choice (4) is not correct.

So final ansewr is choice (1) "the angles donot have same reference angle"

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Answer:

F = 200/d^2

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