The following quadratic regression equation gives us an estimate of n, which is the number of days the AQI exceeded 100 a
particular year. We will use this equation to estimate the number of days the AQI was over 100 in the year 1995.
n-1.762 - 13.321+ 41.00
(Lett represent the number of years since 1990. Therefore, t = 0 corresponds to the year 1990. For the estimate of n, round to the
nearest whole day.)
18 days
b. 24 days
c. 182 days
d. 72 days

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