As of a certain date, roughly 50 million web domain names were registered. a) How many domain names consisting of just two letters in sequence can be formed? (lower case only) b)How many domain names are there consisting of three letters in sequence? (lower case only) c) How many domain names are there consisting of four letters in sequence if either letters or digits are permitted? (lower case only) d) As of this certain date, 97,786 of the four -character sequences using either letters or digits had not yet been claimed. If a four-character name is randomly selected, what is the probability that it is already owned? (use your answer in c above)

sas (side angle side)

aa (angle angle)

sss(side side side)

sas find two sides with an angle in between

aa is finding two angles and the third will add up to 180

sss find all sides

step-by-step explanation:

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

your answer is  

a.

5

step-by-step explanation: