3 years ago

PLEASE HELP I DON'T KNOW HOW TO DO THIS?!?!??!??!?!?!?

Mathematics

2 answers:

PolarNik [594]3 years ago

4 0

2. Would actually be 2.5x10

forsale [732]3 years ago

3 0

Answer:

2. 250 = 2.50 x 100 = 2.50 x 10^2

Step-by-step explanation:

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1. The company has agreed on a 9- character password format, comprised of uppercase letters, lower case letters, and digits (0-9

pochemuha

Answer: a) 1977060966, b) 146581344.

Step-by-step explanation:

Since we have given that

There are 10 numbers,

There are 26 lower case letters,

There are 26 upper case letters,

Since the first 3 characters have to be digits and next 6 can be upper or lower.

So, a) repetitions are allowed:

$10^3\times (26+26)^6\\\\=10^3\times 52^6\\\\=1977060966$

b) repetitions are not allowed:

$^{10}P_3\times ^{52}C_6\\\\=720\times 20358520\\\\=146581344$

Hence, a) 1977060966, b) 146581344.

5 0

3 years ago

How many students participated in the survey ?

-Dominant- [34]

50 students participated in the survey, if you need help with 2, 3, & 4, just comment and ask

8 0

3 years ago

Which number expresses 6.72 as a fraction in simplest form?

Dimas [21]

The number that expresses 6.72 as a fraction is simplest form is...

6.72= 168/25

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3 years ago

An initial amount of $2000 is invested in an account at an interest rate of 5% per year, compounded continuously. Find the amoun

yulyashka [42]

Answer:

$2,100.00

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Will do brainly for this

Tcecarenko [31]

Answer:

180 Degrees

Step-by-step explanation:

I had the same question and it worked/correct.

6 0

3 years ago