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Serggg [28]
2 years ago
8

How many 7-digit numbers can be

Mathematics
1 answer:
padilas [110]2 years ago
4 0

Answer: 5040 7-digit numbers

Step-by-step explanation:

Permutations:

1: 1 ==> 1 permutation ==> 1 ==> 1!

12: 12, 21 ==> 2 permutations ==> 1*2 ==> 2!

123: 123, 132, 213, 231, 312, 321 ==> 6 permutations ==> 1*2*3 ==> 3!

7-digits: 7!=

1*2*3*4*5*6*7=5040 7-digit numbers

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Find the equation of a line containing the following points. Write the equation in slope-intercept form.
Sindrei [870]

Answer:

y=1/4x + 1.75

Step-by-step explanation:

1-2/2--2 = 1/4

2=1/4+b

b=1.75

8 0
2 years ago
The product of four different positive integers is 100. What is the sum of these four integers?
Leno4ka [110]

Step-by-step explanation:

The Answer for the above question is

The four integers are 1,2,5,10. And Sum of the four integers is 18 .

<u>Method : </u>

Product of four different positive integers is 100 .

<u>First</u> of all lets break the number "100"

 ⇒  100 = 50*2

 ⇒ 100 = 25 * 2 * 2

  ⇒ 100 = 5 * 5 * 2 * 2

But here we get the same  integers 2 and 5 and we want different positive integers . So hereby merge 5 * 2  which is 10.

Let's get to the possible combination -

  After merging 5*2 = 10 we get the answer as -

 ⇒ 100 = 1 * 2 * 5 * 10

 Here, we have 1, 2, 5, 10. these are the positive integers whose product gives 100 .

Sum of these products is -

   ⇒ Sum = 1 + 2 + 5 + 10

  ⇒  Sum = 18 .

Sum of these four Integers is 18.

5 0
3 years ago
Examine the following table. Determine whether the rate of change is constant or variable. If it is constant, state the rate of
xenn [34]

Answer:

Variable rate of change.

Step-by-step explanation:

Plot the points and you'll see that the graph is not a straight line, therefore the rate of change is variable.

5 0
2 years ago
Can anyone help me with this? is equations of lines.
vladimir2022 [97]

Answer:

x=16

Step-by-step explanation:

y = 1/2 x -3

Let y =5

5 = 1/2 x -3

Add 3 to each side

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Multiply each side by 2

8*2 = 1/2x*2

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8 0
2 years ago
Read 2 more answers
Pls answer this!! someone!!!
oksano4ka [1.4K]

Answer:

A = bh = (17 km)(11 km) = 187 km^2

3 0
2 years ago
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