A study reports that in 20102010 the population of the United States was 308,745,538308,745,538 people and the land area was approximately 3,531,9053,531,905 square miles. ​Based on the study, what was the population density, in people per square mile, of the United States in 20102010? ​Round your answer to the nearest tenth.​

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

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

246

step-by-step explanation: