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vfiekz [6]
3 years ago
11

Can someone please help me out

Mathematics
1 answer:
Serga [27]3 years ago
7 0

cylinder but which grade is this?

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You are assigned a computer generated 4-digit password to access your new voice mail account. If the
lara [203]

Answer:

5,040 different passwords are possible

Step-by-step explanation:

Assuming that 4-digit means using only numeric values.

This is a permutations problem.

n = number of values used with number values only this is 10

r = the number used in each case without repeating in this case 4

nPr = n! / (n - r)!

nPr = 10! / (10-4)!

nPr = 10! / 6!

The ! means factorial. For example 4! = 4 x 3 x 2 x 1 = 24

A quick hack for dividing factorials is to use cancelling.

10! / 6! = 10 x 9 x 8 x 7 (because 6 to 1 are cancelled by 6!)

= 5040

5 0
4 years ago
Need help in algebra with graphs <br> Quick
Nina [5.8K]

Answer:

I think X=1

hope that helps:)

3 0
3 years ago
Max pays a flat rate of $85 for his cell phone. He is also charged $0.15 for every text that he sends. His cell phone bill can b
iogann1982 [59]
Answer : b, .15x + 85 ≤ y
8 0
3 years ago
Find the determinant of the given matrix.<br><br> -42<br> or<br> -22<br> or <br> 22<br> or <br> 42
Maksim231197 [3]

Answer:

-42

Step-by-step explanation:

Cross multiply

5 * -2 = -10

8 * 4 = 32

-10 - 32 = -42

5 0
3 years ago
Read 2 more answers
Team one had 4 times less people than team two. After 6 people quit team two and 12 people were transferred from team two to tea
Snowcat [4.5K]

Answer:

There were 10 people in team one.

Step-by-step explanation:

Let x= team one.

Let y= team two

Because there four times less people in team one than in two we know that x=(1/4)y

After 6 people quit and 12 people transfer from team two, the two teams become equal. Therefore, x + 12 = y - 6 - 12.

You can then insert the initial equation for x into the second equation and know that there were 10 people in team one and 40 people in team two.

7 0
4 years ago
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