Answer:
Step-by-step explanation:
We need to check each u value to say if each one is correct...
8 
u - 27
when u = 33
8 33 - 27
8 6
and it's true!
So, 33 is solution
when u = 39
8 39 - 27
8 12
It isn't true. No solution!
When u = 31
8 31 - 27
8 4
It's true and it also is a solution.
when u = 35
8 35 - 27
8 8
it's true and it also is a solution.
<h3>
Answer: B) 60</h3>
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Explanation:
Whenever the angle theta is between 0 and 90, the reference angle is exactly that value.
It's only when you get to other quadrants is when things get a bit tricky. Right now we're in quadrant 1, often written as Q1.
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Extra info:
- If theta is between 90 and 180, then the reference angle is 180-theta. This region is Q2
- If theta is in quadrant 3, between 180 and 270, then the reference angle is theta-180. The order of subtraction is important since x-y is the not the same as y-x.
- Lastly, if theta is between 270 and 360 (in Q4), then the reference angle is 360-theta.
- As you can see, we have four quadrants starting with Q1 in the upper right corner. Then we move counterclockwise to get Q2,Q3 and Q4.
Yes, this is a function because the mapping is one to one. The domain is the the different inputs that can be put into the function, so the domain is {1,2,3,4,5}. The range is the different outputs the function can produce. So the range would be {40,80,120,160,200}.
When you are finding a measurement of area, you will use square units - Choice B.
The reason is because the measurement of area is how much space a flat surface covers. You create little squares of the units to measure this space. Area is a two dimensional measurement.
