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mihalych1998 [28]
3 years ago
8

Serial numbers for a product are to be made using 2 letters followed by 3 digits the letters are to be taken from the first 6 le

tters of the alphabet with no repeats the digits are to be taken from 10 digits with no repeats how many serial numbers are there
Mathematics
1 answer:
kipiarov [429]3 years ago
7 0

Answer:

Step-by-step explanation:

We have to make 5 place serial number with first two as alphabets and last three as digits.

The alphabets are bonded to first 6 ( A, B, C, D, E, F) where as digits are 10 (say 1 to 10).

Let the serial number be S1 S2 S3 S4 S5.

For Alphabets

For S1 we have 6 alphabets.

Now for S2 we are left with 5 alphabets since there is no repetition one alphabet will be fix for S1.

So the possible combination for S1 S2= 6x5=30.

For Digits

We did the same as we did for alphabets, for S3 we have 10 possibilities, and for S4 and S5 9 and 8 respectively due to the no repetition condition.

So the possible combinations for S3 S4 S5 = 10x9x8=720

So the total number of serial numbers are 30+720=750.

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Selena is planning a birthday party for her little sister at a local zoo. The price depends on the number of children that atten
pentagon [3]

Answer:

WHY TO A ZOO

Step-by-step explanation:

1. zoos keep animals in captivity when they shouldnt be

2. the animals didnt just walk up to a zoo and was like oh yea imma stay there they were forced to be in there

4 0
2 years ago
A rectangle has a width of 9 km and a length of 6 km. How does the area change when each dimension is multiplied by 3?
Gnom [1K]

For this case we have that by definition the area of a rectangle is given by:

A = wl

Where

  • <em>w: width of the rectangle </em>
  • <em>l: length of the rectangle </em>

The area of the original rectangle is given by:

A1 = (9) (6)\\A1 = 54

The area of the new rectangle is given by:

A2 = (3 * 9) (3 * 6)\\A2 = 9 * (9) (6)\\A2 = 9 * 54\\A2 = 9 * A1

Therefore, the original area increases with a factor of 9.

Anwer:

the original area increases by a factor of 9.

A2 = 9 * A1

5 0
3 years ago
Read 2 more answers
The graph of y=√x is shifted 3 units down and 2 units right. Which equation represents the new graph?
kolbaska11 [484]
The general form would be:  y = a \sqrt{x-b} + c  where 'a' is responsible for the magnitude of the function, 'b' is responsible for horizontal shift.and 'c' is responsible for vertical shift of the function.  

Your answer would be:  y =  \sqrt{x-2} -3

Looks like choice A
7 0
3 years ago
Read 2 more answers
Someone please help me
SOVA2 [1]
Gosh, when I saw that my mind went blank
6 0
3 years ago
Does the equation x2 - 10x + y2 - 6y = -30 intersect the x-axis?
Dmitriy789 [7]
Intersecting the x axis means y is 0
plug y=0 in the equation and solve for x to see if there are real solutions
x^2-10x+0+0=-30
x^2-10x+30=0
this cannot be factored, so let's see if b^2-4ac is bigger than 0
10^2-4*1*30=-20
so the solutions for this equation are not real numbers, therefore the answer is no.
5 0
3 years ago
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