Scores on a test have a mean of 70 and Q 3 is 83. The scores have a distribution that is approximately normal. Find P 90. (You will need to first find the standard deviation.)

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

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

pretty sure 750 each month!

step-by-step explanation:

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