Answer: 18 feet
Step-by-step explanation:
Given: The circumference of circle is given by :-
, where r is the radius of the circle.
Since, The circumference of a circle
feet.
Hence, the radius of the circle = 18 feet.
Answer:
The longest day of the year is day 172
Step-by-step explanation:
Since the length of day is L(t)=727+22sin[2π(t−80.75)/365], the maximum length of day is obtained when sin[2π(t−80.75)/365] is at its maximum value which is 1. So. sin[2π(t−80.75)/365] = 1
We now solve this to find the day at which this maximum value occurs.
sin[2π(t−80.75)/365] = 1
[2π(t−80.75)/365] = sin⁻¹(1)
[2π(t−80.75)/365] = π/2
dividing both sides by 2π/365, we have
[2π(t−80.75)/365] ÷ 2π/365 = π/2 ÷ 2π/365
t−80.75 = 365/4
t−80.75 = 91.25
t = 91.25 + 80.75
t = 172
The longest day of the year is day 172
3+5.2x=1-2.8x
1. 3+5.2x+2.8x=1
2. 5.2x+2.8x=1-3
5.2x+2.8x=1-3
1. 8x=1-3
2. 8x=-2
8x=-2
1. =-(1/4)
Alternative form:
2. x=-0.25
I think you divide.. find the mean of all of the numbers?
