Answer:
15 different passwords.
Step-by-step explanation:
Since I need to make a password of 4 letters from 6 given letters without repeating any letters, this can be done using combination.
Combination has to do with selection of some object from a pool of many objects.
Generally, if r objects are to be selected from a pool of n objects, this can be done in nCr number of ways where:
nCr = n!/(n-r)!r!
Applying the formula, if 4 letters are to be selected from 6 letters, this can be done in 6C4 ways
6C4 = 6!/(6-4)!4!
= 6!/2!4!
= 6×5×4!/2×4!
= 6×5/2
= 15ways
This shows that I can use 15 different passwords without repeating any letter
Order of Operation is commonly referred to as PEMDAS, an acronym for "Please excuse my dear aunt Sally," which references the order in which operations should be calculated when solving a math problem.
P = parentheses
E = exponent
M = multiply
D = divide
A = add
S = subtract
So you don't always have all of these components, but you consider the ones present in the problem in front of you. If there is no multiplication, but there is division and a set of parentheses, then you FIRST solve what's inside the parentheses, then you divide. If you have some examples, I'll show you.
Answer:
tohw9
ufpa
Step-by-step explanation:
jfapn
abjllj shllhphkvq gohahogsv 79qy75j
In Line 2, Madeline subtracted one from -7, she was supposed to add 1. UR WELCOME!!!
Answer:
A. -2
Step-by-step explanation:
You will always find the slope of the line on the y-axis, in thus question here it shows the line on the y-axis, on the -2. Therefore, your answer will be A. -2