Answer:
a
Step-by-step explanation:
Answer:
59049 digits
Step-by-step explanation:
Given
Digits = 0 to 9
Required
Determine number of 5 digit pins that must not contain 0
There are 10 digits.
Since the pin must not contain 0, there are 9 digits left to select from.
The question didn't state that a digit can not be repeated, so I'll assume that repetition of digit is allowed.
The 1st digit of the 5 could be any of the 9 digits
The 2nd could be any of the 9 digits
The 3rd could be any of the 9 digits
The 4th could be any of the 9 digits
The 5th could be any of the 9 digits
Hence, number of selection is calculated as this:
Selection = 9 * 9 * 9 * 9 * 9
Selection = 59049
Answer:
Mark types the fastest rate of words per minute at 75 words per minute
Step-by-step explanation:
In this question, we want to know which of the three typists has the fastest typing rate.
To calculate this, what we need to do is to divide the total number of words they can type by the number of minutes taken to type those words.
For Natasha, we have; 2600 words / 40 minutes = 65 words per minute
For Henry, we have 4900 words/70 minutes = 70 words per minute
For Mark, we have 3750 words/50 minutes = 75 words per minute
We can see that Mark with 75 words per minute has the fastest typing rate
Answer:
y=−2x5−9x4−8x3+15x2+28x+12
Step-by-step explanation:
