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garri49 [273]
2 years ago
14

How many four-character alpha-numeric codes are possible if repeated characters are not allowed?

Mathematics
1 answer:
sweet [91]2 years ago
5 0

Answer:

1,413,720

Step-by-step explanation:

Total number of characters = letters + numbers

= 26 + 10

= 36.

So total number of possible codes

= 36P4

=  36!/ (36-4)!

= 36*35*34*33

= 1413720

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The volume of a bathtub is 32,400 in.³ If the width is 30 inches and the length is 60 inches what is the depth
marysya [2.9K]

Answer:

18 inches

Step-by-step explanation:

volume = lenght * width * depth

let the depth be x

32400=60*30*x

x=32400/(60*30)

x=32400/1800

x=18

3 0
3 years ago
How many ways are there for six dogs and four cats to sit in a row in a strawberry field so that no two cats sit next to each ot
pickupchik [31]

Answer: 5,760

Step-by-step explanation:

\\It was given that each dog is distinct from other dogs and each cat is distinct from other cats, Also from the hint given, the First position is for the dogs. \\Let D represent the dogs and C represent the Cat , then we have

\\D C D C D C D C D D   or

\\D  D C D C D C D C D  or

\\D C DD C D C D C D or

\\D C D C D D C D C D or

\\D C D C D C DD C D

\\Each of the arrangements above  could be done in

\\2 x 4! x 4!  ( it is constant that D is starting , so I am only left with the arrangement of the remaining 5 D's  , out of the remaining 5 D's it is also constant that tow of them will be together and this could be done in 2 ways, so I have 4! left for the D's and 4! also for the C's )

\\= 2 x 24 x 24

\\ = 1 , 152

\\The total arrangement = 5 x 1 , 152

\\= 5,7 60 ways

3 0
3 years ago
I really need help on this one. Help please
ddd [48]
COULD YOU BE Y GIRLFRIEND IF I ANSWER?

6 0
3 years ago
What is the correct expanded form of -3(4 + 2n) ?​
lys-0071 [83]

Answer:

-3(4+2n) multiply -3 by 4 and 2n

-12-6n

3 0
3 years ago
Read 2 more answers
If a scientific team uses special equipment to measures the pressure under water and finds it to be 282 pounds per square foot,
taurus [48]

p=282 pounds per square foot =1 376.8 kg/m2

d- density of water

d≈997 kg/m³

p=d*h

h=p/d

h=1 376.8/997

h=1.38 m (about 4530 feet 105⁄64 inches)

4 0
3 years ago
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