Answer:
Step-by-step explanation:
GIVEN: two two-letter passwords can be formed from the letters A, B, C, D, E, F, G and H.
TO FIND: How many different two two-letter passwords can be formed if no repetition of letters is allowed.
SOLUTION:
Total number of different letters 
for two two-letter passwords 
different are required.
Number of ways of selecting different letters from 
letters
Hence there are different two-letter passwords can be formed using letters.
Answer:
Step-by-step explanation:
<u>Step 1: Find the a, b, and c values</u>
The a value is: 3
The b value is: -4
The c value is: -20
Answer:
Step-by-step explanation:
First we must calculate the interquartile range (IQR), using this equation:
Based on the information provided we fill in:
In order to find what the range for the data set is we need to use the Interquartile Rule:
× 
×
× 
Now we plugin in:
Any number below 25.5 is a possible outlier and any number above 77.5 is a possible outlier.
Answer:
Based on the results of the calculations, 25 could be a possible outlier in the data set.
Y = 7x, if x equals the number of hours and y equals the amount of money charged.
Answer:
The angles are 87 degrees and 93 degrees.
Im not sure if its correct-
Step-by-step explanation:
x+(x-6)=180
2x=174
x=87
