Each table represents an investment after a given number of years.
which tables represent exponential functions?
select each correct answer.
time (years) investment ($)
1 1820.00
2 2912.00
3 5241.60
4 8386.56
time (years) investment ($)
1 820.00
2 984.00
3 1279.20
4 1535.04
time (years) investment ($)
1 910.00
2 1001.00
3 1101.10
4 1211.21
time (years) investment ($)
1 220.00
2 264.00
3 316.80
4 380.16

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