Answer:
-1
Step-by-step explanation:
The formula for D/4 is b'^2-ac (where b' = 4/2=2, a=1, c=5). When we use the special discriminant (D/4) we get D/4 = (2)^2-1*5 = 4-5=-1.
Hope this helps!
Answer:
Step-by-step explanation:
Z-score:
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem:
I suppose there was a miscue in typing the names, either Emily is Jessica, or we have to find the z-score for Emily's exam.
We have that and a score of 66, so
Then
Answer:
40.2
Step-by-step explanation:
you have to add all of the sides together.
don't worry about the circle yet.
Answer:
a\a= what you started with
Step-by-step explanation: