2 years ago

PLEASE HELP ME! Thanks!

Mathematics

1 answer:

stepladder [879]2 years ago

3 0

Answer:

I guess 21 is your answers.

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Which events are mutually exclusive?

statuscvo [17]

The last one is I think

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3 years ago

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.

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2 years ago

In triangle XYZ. the measurements of angle X and angle Y are 45° Which is the longest side of the triangle

ipn [44]

Answer:

the side XY

Step-by-step explanation:

we know 2 angles in a triangle. but are 45 degrees.

that means the third angle Z is 180-45-45 = 90 degrees.

the side opposite of the largest angle is the longest side.

opposite of Z is the side XY.

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2 years ago

I don’t get it :/ but may you please help me please if so thank you so much

scoundrel [369]

The ones with a square in a picture is a 90 degree angle the rest are a 180

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3 years ago

WHat is 9 times 8 times 7 times 6 times 4 times 3 times 2 times 1 divided by 8. First person to answer get a free like and brain

AnnyKZ [126]

9072 is the correct answer.

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2 years ago

Read 2 more answers