Answer:
108
Step-by-step explanation:
Robin cleans 72 rooms in 6 days,
so he cleans 72 rooms / 6 days = 12 (rooms /day),
so 9 days he could clean (12 rooms / day) * (9 days) = 108 rooms
The cosine of an angle is the x-coordinate of the point where its terminal ray intersects the unit circle. So, we can draw a line at x=-1/2 and see where it intersects the unit circle. That will tell us possible values of θ/2.
We find that vertical line intersects the unit circle at points where the rays make an angle of ±120° with the positive x-axis. If you consider only positive angles, these angles are 120° = 2π/3 radians, or 240° = 4π/3 radians. Since these are values of θ/2, the corresponding values of θ are double these values.
a) The cosine values repeat every 2π, so the general form of the smallest angle will be
... θ = 2(2π/3 + 2kπ) = 4π/3 + 4kπ
b) Similarly, the values repeat for the larger angle every 2π, so the general form of that is
... θ = 2(4π/3 + 2kπ) = 8π/3 + 4kπ
c) Using these expressions with k=0, 1, 2, we get
... θ = {4π/3, 8π/3, 16π/3, 20π/3, 28π/3, 32π/3}
The international financial reporting standards
Answer:
=
= 
Step-by-step explanation:
Hi!
Next time, I'd recommend just typing in the number, this is a bit hard to see.
To the point!
11
is equivalent to
and in decimal form is 11.25.
Hope this helps!
- Sahkfam
Also note if you want any more explanation, please comment.