Ask question

Ask question

All categories

2 years ago

14

You have been assigned a 9-digit identification number. How many identification numbers are possible?

1 answer:

Rasek [7]2 years ago

3 0

Permutations are all possible variations, in which a set of numbers or characters can be ordered. <span>The number of permutations on a set of </span><span> n elements is given by </span><span> n!. </span>In our case we have 9 digits, which means 9 elements.
There are 9!=9*8*7*6*5*4*3*2*1=362880 possible variations, or 362880 possible identification numbers.

You might be interested in

Help please!<br> Thank you!!

umka2103 [35]

Answer:

i dont know what it is

Step-by-step explanation:

maybe a

3 0

3 years ago

Without using a calculator, determine the number of real zeros of the function

kumpel [21]

The number of real zeros of the function f(x) = x3 + 4x2 + x − 6 is 3

<h3>How to determine the number of real zeros?</h3>

The equation of the function is given as:

$f(x) = x^3 + 4x^2 + x - 6$

Expand the function

$f(x) = x^3 + 5x^2 - x^2 + 6x - 5x - 6$

Reorder the terms

$f(x) = x^3 + 5x^2 + 6x - x^2 - 5x - 6$

Factor the expression

$f(x) = x(x^2 + 5x + 6) -1(x^2 + 5x + 6)$

Factor out x -1

$f(x) = (x^2 + 5x + 6)(x -1)$

Expand

$f(x) = (x^2 + 3x + 2x + 6)(x -1)$

Factorize

$f(x) = [x(x + 3) + 2(x + 3)](x - 1)$

Factor out x + 2

$f(x) = (x + 3)(x + 2)(x- 1)$

The function has been completely factored and it has 3 linear factors

Hence, the number of real zeros of the function f(x) = x3 + 4x2 + x − 6 is 3

Read more about functions at:

brainly.com/question/7784687

#SPJ1

3 0

2 years ago

Match the measureable quantity given by its formula with the appropriate unit(s).

kompoz [17]

Good morning ☕️

___________________

Step-by-step explanation:

Look at the photo below for the details.

3 0

3 years ago

6x – 5 = 37 Please help I need it <br><br> 98 points Please help

katrin2010 [14]

Answer: X = 7.

Step-by-step explanation: Move all terms that don't contain x to the right side and solve.

<em>I'll go step-by-step.</em>

<em></em>

1. Add 5 to <u>both</u> sides. 6x-(5+5)=37+5

2. Simplify 6x=42

3. Divide <u>both</u> sides by 6. $\frac{6x}{6} =\frac{42}{6}$

4. Then simplify/Divide. 42 / 6 = 7

That's how you get 7!

X = 7

5 0

2 years ago

A count went up from 450 to 600. What was the approximate percent increase?

navik [9.2K]

You answer is A 33% .

5 0

3 years ago

Read 2 more answers