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
s344n2d4d5 [400]
3 years ago
11

Serial numbers for a product are to be made using 2 letters followed by 2 digits. The letters are to be taken from the first 6 l

etters of the alphabet, with no repeats. The digits are taken from the 10 digits 0, 1, 2, ... , 9 , with no repeats. How many serial numbers can be generated?
Mathematics
1 answer:
Andru [333]3 years ago
5 0
Alright so I'm coming up with this on the fly; you have the first six letters (a,b,c,d,e,f) and 0-9 and your ten numbers. calculate the amount of possible combinations for the letters by simply writing them down.
ab, ac, ad, ae, a f- five
bc, bd , be, bf- four
cd, ce, cf- three
de, df- two
ef,- one.
adding these all together gets a total of 15 for the letters. now the numbers
01, 02, 03, 04, 05, 06, 07, 08, 09- nine
12, 13, 14, 15, 16, 17, 18, 19- eight
23, 24, 25, 26, 27, 28, 29- seven
34, 35, 36, 37, 38, 39- six
45, 46, 47, 48, 49- five
56, 57, 58, 59- four
67, 68, 69- three
78, 79- two
89- one
added together with a total of 45 combinations.
alright so, 45 different number combinations and 15 letter combinations. multiplying 15 by 45 should tell you the total possible combinations for a two letter and two number serial-number

You might be interested in
A population of 100 frogs increases at an annual rate of 22%. How many frogs will there be in 5 years? Write an expression to re
gizmo_the_mogwai [7]
Exponential growth of the form:

F=Ar^t

F=100(1.22)^t

F(5)=100(1.22)^5

F(5)=270.27

F(5)=270 to the nearest frog...

....

1.22=r^12

r=1.22^(1/12)

F=100(1.22^(1/12)^t)

F=100(1.22^(t/12))  now it will produce monthly populations...

Say we did the same as before but instead of 5 years you have 60 months...

F(60)=100(1.22^(60/12))

F(60)=270 to the nearest frog... :P 
6 0
3 years ago
The regular price of a tablet case is $38.45. During a sale, the case was marked as 25% off. What was the approximate price of t
Pani-rosa [81]
C 28.84 just multiply 38.45 by .25 then you should get 9.6125 you subtract 38.45 by 9.6125 and get 28.84
6 0
3 years ago
Read 2 more answers
HOW do you find the value of TAN 88 degrees 22' 45'' and COT 36 degrees???
storchak [24]
Part 1
We want to find the tan of 88 degrees, 22' 45''.

88° 22' 45''
= 88 + 22/60 + 45/3600 degrees
= 88.3792°

From the calculator, obtain
tan(88.3792°) = 35.3409

Answer: 35.3409

Part 2
We want to find cot(36°).

By definition, cot(x) = 1/tan(x).
From the calculator, obtain
tan(36°) = 0.7265
Therefore
cot(36°) = 1/0.7265 = 1.3764

Answer: 1.3764

3 0
3 years ago
What are the first 300 digits of pie first answer is brainiest
Gelneren [198K]

Answer:

3.

141592653589793238462643383279502884197169399375105

82097494459230781640628620899862803482534211706798

21480865132823066470938446095505822317253594081284

81117450284102701938521105559644622948954930381964

42881097566593344612847564823378678316527120190914

5648566923460348610454326648213393607260249141273

Step-by-step explanation:

:)

6 0
3 years ago
Read 2 more answers
Is checking account an asset or liabilitie
photoshop1234 [79]
A checking account is a liability
7 0
3 years ago
Other questions:
  • Does the product of two real numbers with the same sign result in a positive? I think it does but not completely sure.
    5·2 answers
  • 25 POINTS
    11·1 answer
  • a car salesman makes $445 per week plus commission. if during the week he sells a new van for $34,960 and earns 2.5% commission
    15·2 answers
  • What is 20+ 1,278 equal
    8·2 answers
  • A multiple choice test has 9 questions each of which has 5 possible answers
    6·1 answer
  • I have to write the slope and equation of each line pictured in y = mx + b form.
    12·1 answer
  • 0=5-2x+y<br><br> solve the equation for y.
    5·1 answer
  • What is the value of P for the following triangular prism? 19 yd 12 yd 6 yd 18 yd
    10·2 answers
  • The function f(x) = –x2 – 4x + 5 is shown on the graph. On a coordinate plane, a parabola opens down. It goes through (negative
    7·1 answer
  • Can someone please be indepth
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!