Evaluate the expression 5+2n^2 when n=3

41.

Step-by-step explanation:

With n being 3, 3 would multiply by 2 (and become 6), and since it's going to be squared, your new equation will be "5+6^2". 6 squared is 36, and 5 being added to 36 results in 41. Therefore, your answer is 41.

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im not sure

step-by-step explanation:

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq