a cell phone company Mobile x used for the number of text messages x according the function f(x)=0.5+15 on a monthly basis however mobile x doubled their charge per text message from 5 cents to 10 cents under their new plan maggie sent 103 text messages under the old plan and 75 text messages under the new plan what was the difference in maggie text messaging charges

6.5

step-by-step explanation:

you said it was in the question

~courtney

this is false ^.^ lol

49%

step-by-step explanation:

when you realize that you dont know just realize i just took a test and im so smart

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