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lora16 [44]
3 years ago
14

"a computer system requires that passwords contain at least one digit. if "seven" characters are generated at random, and each i

s equally likely to be any of the 26 letters or 10 digits, what is the probability that a valid password will be generated?"
Mathematics
1 answer:
PtichkaEL [24]3 years ago
5 0

There are 36^7 different passwords available, incluiding ones that have repeated characters, are sequential characters, or are all the same letter or digit. Of these 26^7 are invalid. the probability of obtaining a valid password is

... 1 - 26^7/36^7 ≈ 0.8975

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The sixth grade art students are making a mosaic using tiles in shapes of right triangles. Each tiles has the leg measures of 5.
Drupady [299]

Given:

Each right triangular tiles has the leg measures of 5.2 cm and 6 cm.

There are 150 tiles in the mosaic.

To find:

The area of the mosaic.

Solution:

We know that, the area of a triangle is:

A=\dfrac{1}{2}\times Base\times height

So, the area of Each right triangular tile is:

A=\dfrac{1}{2}\times 5.2\times 6

A=\dfrac{1}{2}\times 31.2

A=15.6

There are 150 tiles in the mosaic. So, the area of the mosaic is:

Area=15.6\times 150

Area=2340

Therefore, the total area of the mosaic is 2340 cm ².

5 0
2 years ago
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ruslelena [56]

Answer:

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Step-by-step explanation:

7 0
2 years ago
Goes through the 2 points (-3,5) (4,5). what's the equation?
Ierofanga [76]
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3 0
3 years ago
Which set of integers is a Pythagorean triple and are side lengths of a right triangle?
Alona [7]
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c squared = a squared + b squared
6 squared = 5 squared + 3 squared
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c) 17, 15, 9
c squared = a squared + b squared
17 squared = 15 squared + 9 squared
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12 squared = 8 squared + 6 squared
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hope this helps!!
4 0
2 years ago
Which statement is true about the equation (x – 4)(x + 2) = 16?
BabaBlast [244]
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5 0
2 years ago
Read 2 more answers
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