Answer:
True. That is a function.
Step-by-step explanation:
A function just means that every input has only one output. The simpler way to do these is the vertical line test. Draw a vertical line anywhere on the graph and see if the vertical line is intersected in two places. If the vertical line is crossed twice, the graph isn't a function.
Answer:
always
Step-by-step explanation:
She will get about 151.4 euros when she converts it.
Answer:

Step-by-step explanation:
tan(30°) = 
cot(30°) = 
sin(60°) = 

Answer:
It is because the red disks were more than the other disks before the pupils added other disks.