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Anni [7]
3 years ago
15

A credit card company requires that its customers choose a 3 digit, numerical code to access their online account. Each digit sh

ould be chosen from 012345678 or 9. So there are 10 possibilities for each digit. How many different three digit codes are there?
Mathematics
1 answer:
Citrus2011 [14]3 years ago
4 0

Given :

A credit card company requires that its customers choose a 3 digit.

Each digit should be chosen from 0, 1, 2, 3, 4, 5, 6, 7, 8 or 9.

So there are 10 possibilities for each digit.

To Find :

How many different three digit codes are there.

Solution :

We know, possibility of choosing each digit is 10.

So, total number of three digit codes are :

T=10\times 10\times 10\\\\T=1000

Therefore, their are 1000 different three digit codes.

Hence, this is the required solution.

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Ivenika [448]

Answer:

35 degrees

Step-by-step explanation:

The sum of all angles in a triangle equals to 180

To find angle z, just subtract 55 and 90 from 180

180-55-90= 35

Angle z = 35 degrees

Hope this helps

8 0
2 years ago
I need to solve for X btw they are same side interior ( supplementary angles )​
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Answer:

x = 17.2

Step-by-step explanation:

since they are supplementary, when you add then together they equal 180

4x + 8 + 6x = 180

Combine like terms

10x + 8 = 180

subtract 8 from both sides

10x = 172

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hope this helps :)

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3 years ago
What does it mean to live on campus?
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To live on campus is when you have almost like a hotel room but you may share it and it is linked to you school
4 0
2 years ago
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A random sample of 17 hotels in Boston had an average nightly room rate of $165.40 with a sample standard deviation of $21.70. T
tensa zangetsu [6.8K]

Answer:

153.158 ; 177.642

Step-by-step explanation:

Given the following:

Sample mean (m) = 165.40

Sample standard deviation (s) = 21.70

Sample size (n) = 17

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Confidence interval = m ± z(SE)

z at 98% = 2.326

SE = s/√n

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Hence,

Confidence interval = 165.40 ± 2.326(5.2630230)

165.40 - 12.241791498 OR 165.40 + 12.241791498

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3 0
3 years ago
What is the solution to the system of
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2x+2y=12.........&
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3 years ago
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