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.
58 degrees bra cause the arc is 58 degrees and due to congruent angles x is also 58 degrees
B = 26in, c = 40in
a^2 = 26^2 + 40^2
= 2276 (square root it)
a = 2root569 // 47.7in
So, you know that there were 5 people there, Kara and 4 friends. To divide equally, just divide 42.30 by 5=
42.30/5 = 8.46
Each person played $8.46.
Hope this helps!!
~Kiwi
