Answer:
h
Step-by-step explanation:
Answer:
= 4.9 (1 dp)
Step-by-step explanation:
Use trig ratio 
where 
is the angle, O is the side opposite the angle and H is the hypotenuse of a right triangle.
Given:
(1 dp)
Answer:
<h2>The first graph in the second image is an odd function.</h2>
Step-by-step explanation:
An odd function has a graph that it's symmetric about the origin, that is, the origin is like a mirror. In other words, the graph of an odd function has a specific symmetry about the origin.
So, we have to look for those graph that has symmetrical points in opposite quadrants, I and III or II and IV.
You can observe that the first graph of the second image has this behaviour. You can see that the points are symmetrical across the origin. If you graph a line defined as y=-x, you will observe that such line acts like a mirror.
Therefore, the odd function is the first graph in the second image.
Image attached.
The relations required are ...
- vertical angles (equal)
- linear angles (sum to 180°)
- sum of angles in a triangle (180°)
- meaning of hash marks on lines (the lines are congruent)
- meaning of hash marks on angles (the angles are congruent)
- corresponding angles (equal)
- alternate exterior angles (equal)
- alternate interior angles (equal)
= 4
