Answer:
No
Step-by-step explanation:
A^2+b^2=c^2
8^2+15^2=20^2
64+225=400
289=400
289 does not equal 400 so it is not a right triangle
A veriable = 1, use it as with pemdas
I'm not sure about the given data but I plotted the scatter plot based on what I understand on how the data should be presented.
Time (years)
3, 6, 9, 12, 15, 18, 21, 24
Number of participants(x1000)
22, 25, 28, 14, 17, 20,15, 9
Attached is the scatter plot created online.
x = time (years)
y = number of participants