What sentence best re-states the paragraph below? Humans have watched solar eclipses since before the dawn of written history. During this long span of time, our understanding of science has grown enormously. As a consequence, many of the older ideas we had about the causes and effects of solar eclipses have been replaced by detailed physical explanations. Still, some people hold on to older, more superstitious ideas about eclipses, such as the idea that food will spoil during an eclipse because of special radioactive waves.

Are there options or do I need to just determine which sentence best restates the paragraph..?

I think in the paragraph, the sentence "As a consequence, many of the older ideas we had about the causes and effects of solar eclipses have been replaced by detailed physical explanations." best fits what you're looking for. :)

coordinates of r(b,c)

slope of nm is 0.

step-by-step explanation:

the midpoint of the line joining the points (x₁,y₁) and (x₂,y₂) is given by

the midpoint of the line segment nk is given by

∴r(b,c)

the slope of the line joining the points (x₁,y₁) and (x₂,y₂) is given by

slope of rs is

hence

coordinates of r(b,c)

and slope of nm is 0.