Using the concepts of domain and range, it is found that:
- The domain of the relation is {-1, 2, 3, 4}.
- The range of the relation is {-1, 0, 2, 4}.
<h3>What are the domain and range of a relation?</h3>
- The domain of a function is the set that contains all possible input values. On a graph, it is given by the values of x.
- The range of a function is the set that contains all possible output values. On a graph, it is given by the values of y.
In this graph, the points represented are given by: {-1, 2}, {2,0}, {3,-1} and {4,4}. Hence:
- The domain of the relation is {-1, 2, 3, 4}.
- The range of the relation is {-1, 0, 2, 4}.
More can be learned about the concepts of domain and range at brainly.com/question/10891721
I believe your answer would be 56.2mpg more on the highway.
The measure of angle B is equal to 60 degrees.
In order to find this, we can first note that the angle C (in the right side triangle) is equal to 80 degrees. We can tell this because it creates a straight line with the other angle C and therefore the two combined give us 180 degrees.
Then we can add angle A, B and C together in the right side triangle to get 180 degrees since they are all the measures of angles in a triangle.
A + B + C = 180
2x + 3x + 80 = 180
5x + 80 = 180
5x = 100
x = 20
Now that we have the x value, we can plug into the equation for B.
B = 3x
B = 3(20)
B = 60
Answer:
Option C is correct
Step-by-step explanation:
Given: A plane is descending onto the runway with an angle of depression of 55°. Also, it has 2.8 miles to go before landing.
To find: current altitude of the plane
Solution:
Consider the attached image.
In ΔABC,
(Alternate interior angles)
For any angle 
,
= side opposite to angle/side adjacent to angle
Put 
So, the current altitude of the plane is 4 miles.
