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
Akimi4 [234]
2 years ago
7

You are creating strings picking letters from the English alphabet at random. What is the probability that your randomly created

string of length 11 will contain exactly 7 A's
Mathematics
1 answer:
White raven [17]2 years ago
8 0

There are 4 positions in the string that each have 25 choices (any letter in the English alphabet except A) and the other positions are filled with A, so there are 25⁴ possible strings containing exactly 7 A's.

Overall, there are 26¹¹ possible strings of length 11.

Then the probability of randomly generating a string containing exactly 7 A's is

25⁴ / 26¹¹ ≈ 0.000000000106427

You might be interested in
A point that is 7 units from the y-axis is reflected across the y-axis. What is the distance of this new point from the y-axis?
Alona [7]
The new distance is -7on the y axis

7 0
3 years ago
Is the expression a valid way to calculate the total bill with a 15% tip. (Yes it no for each letter)
prisoha [69]

Answer:

x*15% (x times fifteen percent)

Step-by-step explanation:

Say x is 20, you multiply 20 times 15% and that will be your answer

5 0
3 years ago
Read 2 more answers
Please help! I really need help!
Musya8 [376]

Answer:104 degrees

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The length of the sides of a triangle is given. Determine
aalyn [17]

Answer:

the triangle is right

Step-by-step explanation:

The Pythagorean theorem dictates that a^2 +b^2=c^2

6^2+8^2=10^2

36+64=100

100=100

6 0
2 years ago
WILL MARK BRAINLIEST A satellite is to be put into an elliptical orbit around a moon as shown below. A vertical ellipse is shown
Radda [10]

Answer:

a=567 km+900 km

a=1,467 km

b=567 km+169 km

b=736 km

x^2/a^2+y^2/b^2=1

x^2/(1,467)^2+y^2/(736)^2=1

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Ben and Susan are truck drivers who start at the same location. Ben drives 300 miles due west and Susan drives 160 miles due sou
    15·1 answer
  • Expression of 5423*1000,0000,0000
    10·1 answer
  • An inchworm (exactly one inch long, of course) is crawling up a yardstick (guess how long that is?). After the rst day, the inch
    7·1 answer
  • What is the degree of the polynomial and what the y-intercept
    13·1 answer
  • Simplify: 64r^8<br> 8r^2<br> 8r^4<br> 32r^2<br> 32r^4
    10·1 answer
  • Is (2,1) a solution of 3y&lt;2x+5
    6·1 answer
  • PLAY
    6·1 answer
  • Complete the equation: 43 in =ft .
    7·2 answers
  • Find the value of x that makes m || n. ​
    10·2 answers
  • HellpppNeed help please urgent
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!