Choose the situations that state an appropriate domain for the function a function predicts the number of online devices in terms of the number of people in the household. An appropriate domain for the function is whole numbers.

a self-serve ice cream shop sells ice cream by the ounce. the function C(w) represents the cost, in dollars, of w ounces of ice cream. An appropriate domain for the function is positive rational numbers

the function h(t) = -16t^2 represents the height, h(t), of an object from the ground at t seconds from being dropped. An appropriate domain for the function is all real numbers

an online company allows you to play games for $0.99 each after you pay a $10.00 membership fee. an appropriate domain for this function is all whole numbers greater than 0.

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;

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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20days louise can read300 pg

step-by-step explanation:

1 day 15 pg 300: 15= 20

x day 300 pg

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)