4 Samir is a roofer. Here is a section of a roof made from straight pieces of wood.
Pitch
Angle o
D
12
45
11
42.5
10
40
DO NOT WRITE IN THIS AREA
9
37
8.
33.75
7
30
А
6
26.5
B.
С
5
22.5
Samir knows that
4
18.5
3
14
2
9.5
the shaded triangle is an equilateral triangle
the line DB is a line of symmetry
the line ABC is a straight line
the size of the angle marked xº indicates the pitch of the roof.
The table shows information about the pitch and angle of a roof.
1
4.5
0
0
TE IN THIS AREA
Find the value of x and use the table to give the pitch of the roof.​

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)