Thaddeus models the number of hours of daylight in his town as D(t) = 2sin(xt) + 12, where Dis the number of daylight hours and tis the
time in months since January 1.
What are the least and greatest numbers of daylight hours over the course of
a year?
A. Least: 10 hours; greatest: 14 hours
B. Least: 6 hours; greatest: 12 hours
C. Least: 2 hours; greatest: 12 hours
O D. Least: 7 hours; greatest: 14 hours
SUBMIT

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?