Iwill give 50 points for this answer find the value of r for the data below electricity use per person (kwh) proverty rate (%) angola 248 43.4 brazil 2384 6.1 china 2944 11.8 colombia 1012 8.2 india 616 32.7 nepal 93 24.8 poland 3783 0.1 senegal 195 29.6 does this dara have a positive or negative correlation? is the data strong, moderate, or weak?

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations