(25 points) a weather reporter in your area said that the speed of sound in air today is about one thousand one hundred feet per second. what is that speed in scientific notation?

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?