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3 years ago

What is the simplified value of the expression below? 4.2+0.6/3-5(0.9-0.5) will mark the brainliest

Mathematics

2 answers:

Vika [28.1K]3 years ago

7 0

Answer:

2.4 jus did it and it was right

Step-by-step explanation:

makkiz [27]3 years ago

4 0

Hi!

4.2+0.6/3-5(0.9-0.5) = 4.2 + 0.2 - 5*0.4 = 4.4 - 2 = 2.4

Hope this helps!

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A cryptographic hash takes a message as input and produces a fixed-length string as output, called the digital fingerprint. A br

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$1.85x10^{19}$ attempts are required to find a matching pair if the digital fingerprint is 64 bits long.

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Step-by-step explanation:

Each bit has two options. So

How many attempts are required to find a matching pair if the digital fingerprint is 64 bits long?

So for each of the 64 bits, we have the following number of options.

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So, in all, there are

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options.

So, $1.85x10^{19}$ attempts are required to find a matching pair if the digital fingerprint is 64 bits long.

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Using the same logic as the first question.

$T = 2^{128} = 3.40*10^{38}$

So, $3.40*10^{38}$ attempts are required to find a matching pair if the digital fingerprint is 128 bits long.

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2 years ago