Your favorite gas station is having a super sale and is selling regular unleaded gasoline at $1.239 per gallon. Using x as the independent variable representing the number of gallons purchased and C as the dependent variable representing the total cost of the fuel, you come up with an equation of C = 1.239 x. You also have the following information listed on the following table. Number of Gallons Purchased (x) 5 10 15 20 Total Cost of the Purchase (C) $6.20 $12.39 $18.59 $24.78 You have only $10 with you. Determine how many gallons you can purchase with this amount. Round to the nearest gallon. a. 8.1 gallons b. 9 gallons c. 7 gallons d. 8 gallons

step-by-step explanation:

1: -2 3/4, -2 1/2, -14, 0, 3, 8 1/3

2: -4, -3, -2 1/2, -2 1/4, 3 1/4,

step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;