Gm The Air Quality Index, or AQI, measures how polluted the air is in your city and assigns a number based on the quality of
the air. Over 100 is "Unhealthy".
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
(Let t 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
24 days
182 days
d. 72 days
a.
b.
C.
Please select the best answer from the choices provided
е А
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Subunit

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation:

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt