The error bars are used to indicate the variability of the data presented in a graph.
There are several quantities that can be used to generate error bars in the graph. These are:
standard deviation
standard error
confidence interval
Usually, one standard deviation above and below the mean is used although it is advised to indicate which variability data is used to generate the error bars in the graph since the 3 quantity given are not equal.
Answer:
14 length of the side is 3x-7
and 15 length of side is 2x+6
The answer to 14 is 13 as in the number not the question
and 13 I'm not so sure
Answer: D
Step-by-step explanation:
Step-by-step explanation:
See above graph.......