The number of hours of daylight in a city in the northern hemisphere shows periodic behavior over time. - the average number of daylight hours is 12 - the maximum number of daylight hours is 14.4 - the period is 365 days - the day with the least sunlight is december 20 which equation models the number of hours of daylight on the day that comes t days after the shortest day of the previous year
a) h(t)= -14.4 sin(0.017t)
b) h(t)= 14.4 sin(0.017t)
c) h(t)= -2.4 sin(0.017t) + 12
d) h(t)= 2.4 sin(0.017t) + 12

Option D

Step-by-step explanation:

Given that the number of hours of daylight in a city in the  northern hemisphere shows periodic behavior over time

Let t be the independent variable and no of hours H(t) be the dependent variable on t.

Maximum H(t) = 14.4 and average =12

Period = 365 days

If we fix a sine curve for this since period is 365, we must have coefficient of t as

So the function H(t) will have sine term as sin 0.017t ... i

Since average = 12, we have

H(t) = 12+a sin 0.017t

for some suitable a.

To find a, use maximum

Maximum is when angle is 90 degrees i.e. when sine value =1

max H(5) = 14.4 = 12+a (1)

a =2.4

Hence correct equation would be'H(t) = 2.4sin(0.017t)+12

OPtion D is right answer.

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.