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Veseljchak [2.6K]
3 years ago
11

A whole number consists of the digits 2, 4, 6, 8, and 0. If each digit is used only once, how many whole numbers are possible?

Mathematics
1 answer:
Leya [2.2K]3 years ago
4 0
Eas
permutations
5 digits
5*4*3*2*1=120 ways
if you count 0 in front of the number as a whole number
if you don't, then there are 96 ways
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Consider the line 9x – 7y=-8.
never [62]

Answer:

Step-by-step explanation:

Before you can answer you have to solve the equation for y.

Y = 9/7 x+8/7

Parallel lines have the same slope so would also be 9/7

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How do you check is the equation is a extraneous solution pr not?
vampirchik [111]

We can check the equation is an extraneous solution or not by finding the solution and plugging it in the equation, to verify it.

<h3>What is the extraneous solution?</h3>

In mathematics, an extraneous solution is a solution that comes from the process of solving the problem but is not a genuine solution to the problem, such as the answer to an equation.

As we know from the definition the extraneous solution is a solution that comes from the process of solving the problem but is not a genuine solution to the problem.

Let's suppose the equation is:

\rm \sqrt{x+4} = x -2

Squaring both the sides:

x + 4 = (x - 2)²

x + 4 = x² - 4x + 4

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Checking for the solution by plugging in the equation;

\rm \sqrt{5+4} = 5 -2

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2 ≠ -2

The solution x = 0 shows extraneous solution.

Thus, we can check the equation is an extraneous solution or not by finding the solution and plugging it in the equation, to verify it.

Learn more about the extraneous solution here:

brainly.com/question/14054707

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2 years ago
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irina [24]

Answer:

X= -7

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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I need help for all of these questions
Sever21 [200]

Answer:

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8. -45.

Step-by-step explanation:


6 0
3 years ago
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