1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NemiM [27]
2 years ago
10

Consider generating length-7 strings of lowercase letters. How many strings are there that either begin with 2 consonants or end

with 3 vowels
Mathematics
1 answer:
Semmy [17]2 years ago
7 0

Answer:

5259544316

Step-by-step explanation:

Given that:

Length of string = 7

Either begins with 2 consonants or ends with 2 vowels :

Either or :

A U B = A + B - (AnB)

Number of vowels in alphabet = 5

Number of consonants = 21

2 consonants at beginning :

First 2 consonants, then the rest could be any:

21 * 21 * 26 * 26 * 26 * 26 * 26 = 5239686816

3 vowels at the end :

First 4 letters could be any alphabet ; last 3 should be vowels.:

26 * 26 * 26 * 26 * 5 * 5 * 5 = 57122000

2 consonants at beginning and 3 vowels at the end :

21 * 21 * 26 *26 *5* 5 * 5 = 37264500

Hence,

2 consonants at beginning + 3 vowels at end 2 consonants at beginning - 2 consonants at beginning and 3 vowels At end

(5239686816 + 57122000) - 37264500

= 5259544316

Hence, number of 7 alphabet strings that begins with 2 consonants and end with 3 vowels = 5259544316

You might be interested in
Identify the subsets of real numbers to which the number 25√ belongs.
Radda [10]
It would be rational
8 0
3 years ago
Read 2 more answers
Write the fraction 3663 in simplest form
dybincka [34]
HEY THERE.

THE CORRECT ANSWER IS 36/63 = 4/7 Hope this helps you
8 0
3 years ago
Read 2 more answers
HELP ASAP GIVING BRAINLIST!!!!!!!!!!
Vilka [71]

Answer:

Step-by-step explanation:

6 0
3 years ago
Once the Bolsheviks seized control of Russia’s government Lenin began to negotiate an armistice with the Central Powers. Why wer
likoan [24]

Answer:

I'm reading about it and mostly they're saying they were concerned with internal conflict within Russia. I'm not positive, it could be because of the loss of land, but it appears to be more politically motivated. uprisings with in the country. so my best guess would be none of the above

3 0
2 years ago
Y=⅔x+4 written in standard form
Verdich [7]

Answer:

I think it is 2x-3y=-12 not sure but try it

5 0
2 years ago
Read 2 more answers
Other questions:
  • HARDEST QUESTION ON THE INTERNET. CAN YOU SOLVE????
    7·2 answers
  • Lisa is cooking muffins.the recipe call for 7 cups of sugar . She has already put 2 cups . how many more cups does she need
    8·2 answers
  • An isosceles triangle may be right or acute but never obtuse.<br> A. True<br> B. False
    13·2 answers
  • Lainey bought a set of 20 markers for $6 what is the cost of one market
    9·1 answer
  • A commercial laundry charges $5.25 per load. You have $31.50. Write and solve an inequality to find the greatest number of loads
    5·1 answer
  • Put the following fractions in order of size starting with the one with the least value 5/16 1/2 3/4 5/8 1/4
    13·2 answers
  • A square market has an area of 36 square meters. How long is each side?
    15·1 answer
  • Can someone help and explain
    8·1 answer
  • Please help! I cant figure this out!
    14·1 answer
  • 3x=10 how do you solve this, i hate math and dont know what to do. help?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!