21 I think cause you use pemdas
<u>Answer: </u>
sec squared 55 – tan squared 55 = 1
<u>Explanation:</u>
Given, sec square 55 – tan squared 55
We know that,
And,
where Ө is the angle
Substituting the values
Solving,
According to Pythagoras theorem,
Putting this in the equation;
squared 55 - tan squared 55 =
Therefore, sec squared 55 – tan squared 55 = 1
Answer:
The median is the middle number in a sorted, ascending or descending, list of numbers, The mode is the value that appears most frequently in a data set.
Step-by-step explanation:
The area of the figure is 144
Y = kx
y/x = k......(5,8)....x = 5 and y = 8
8/5 = k