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
Mars2501 [29]
3 years ago
12

John is choosing a password for an account. He has decided not to use the digit 0 or the letter m. And each letter or number can

be used more than once. How many passwords of two letters followed by four digits are possible?
Mathematics
1 answer:
kap26 [50]3 years ago
4 0
<em>If this guy doesn't use the letter m, then the first and second characters of the password could be any of the 25 remaining letters.  So, the number of possible combinations of 2 letters is 25 times 25, or 625.  

If he doesn't use the digit 0, how many digits are left to choose from?

The first 2 characters of the password will be letters; after that there come four digits.  How many different combinations of 4 digits are there if 0 is not used?

To obtain the final result, mult. together that 625 and the number of possible combinations of digits just found above.</em>
You might be interested in
What is the probability that a person chosen at random from this group has brown or green eyes? startfraction 3 over 25 endfract
lianna [129]

Using it's concept, it is found that the probability that a person chosen at random from this group has brown or green eyes is of \frac{13}{25}.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

Researching the problem on the internet, it is found that the group has 20 + 6 + 17 + 7 = 50 people, of which 20 + 6 = 26 have brown or green eyes, hence the probability is given by:

p = 26/50 = 13/25.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ4

7 0
2 years ago
How many swimmers are holding exaclty 3 toy whales? ​
Setler79 [48]
About 40 swimmers maybe more
6 0
3 years ago
Your mother gave you $13.32 to buy a present. This covered 1/5 of the cost. How much did the present cost?
Nady [450]

Answer:

$66.60

Step-by-step explanation:

Step 1 so she gave you 13.32 and covers 1 fifth of the cost so you have to times 13.32 by 5 to get how much does the present cost so the total after I times 13.32 by5 equals $66.60

6 0
3 years ago
The random variable X~(30,2^2) <br> Find p(X&lt;33) <br> Find p(X&gt;26)
Ostrovityanka [42]

Answer:

i) P(X<33)  = 0.9232

ii) P(X>26) = 0.001

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the mean of the Population = 30

Given that the standard deviation of the Population = 4

Let 'X' be the Normal distribution

<u>Step(ii):-</u>

i)

Given that the random variable  X = 33

               Z = \frac{x-mean}{S.D}

               Z = \frac{33-30}{2} = 1.5 >0

P(X<33) = P( Z<1.5)

              = 1- P(Z>1.5)

             = 1 - ( 0.5 - A(1.5))

             = 0.5 + 0.4232

  P(X<33)  = 0.9232

<u>Step(iii) :-</u>

Given that the random variable  X = 26

               Z = \frac{x-mean}{S.D}

               Z = \frac{33-26}{2} = 3.5 >0

P(X>26)  = P( Z>3.5)

              = 0.5 - A(3.5)

              = 0.5 - 0.4990

             = 0.001

P(X>26) = 0.001

5 0
3 years ago
Which graph represents the compound inequality?<br> n&lt;-2 or n &gt; 4
Marina86 [1]
Yes the answer is C. -2 to the left with open circle and 4 to the right with closed circle
5 0
2 years ago
Other questions:
  • Score data from a statewide exam for 10th-graders follows a normal distribution, has a mean of 77, and has a standard deviation
    13·1 answer
  • What is the square root of NEGATIVE 16
    13·1 answer
  • The tires on Pablo's bicycle have a radius of 10 inches. Use the appropriate formula model to find the circumference. What is th
    9·1 answer
  • 5. Fantine bought flour for her bakery each month and
    8·1 answer
  • John read the first 1 1 4 114114 pages of a novel, which was 3 33 pages less than 1 3 3 1 ? start fraction, 1, divided by, 3, en
    7·1 answer
  • Sathish is going on a 2100 km road with 2 friends, whom he will pick up 150 kilometers after he begins the trip and drops off wh
    7·2 answers
  • Problem
    12·1 answer
  • The actual width of a garage door is 3 m. In a scale diagram, the width of the garage door is
    5·1 answer
  • The plant-breeding department at a major university developed a new hybrid boysenberry plant called Stumptown Berry. Based on re
    15·1 answer
  • The following dot plot represents a random sample of elementary students and the number of children that live in their homes.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!