330 is the answer to this question, please mark me brainliest!
Answer:
1st option is correct.
Step by step explanation:
Let us see our given options one by one.
1. We can see that median of group A is 79 and median of group B is 79.5. Therefore, median of group A is less than group B and 1st statement is correct.
2. Let us find range of each group.
We can see that range of group A is greater than group B, therefore, 2nd statement is false.
3. The lower quartile of group A is 78 and lower quartile of group B is 77. We can see that 78 is greater than 77, therefore, 3rd statement is false.
For this case we have that by definition:
Complementary angles are those that add up to 90 degrees.
We have the following variables:
x: Angle
y: Complement of the angle
According to the statement we have:
According to the given definition we have:
So, we have two equations with two unknowns:
-----> (1)
-----> (2)
From (1) we clear y:
We substitute and in (2):
Thus, the angle is degrees.
Answer:
3x + 5x = 10
8x = 10
x = 10/8
x = 5/4