1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BaLLatris [955]
3 years ago
15

How many 5-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if repetition of digits is not allowed?

Mathematics
1 answer:
UNO [17]3 years ago
3 0

Answer:

2520

Step-by-step explanation:

7×6×5×4×3 = 2520

Imagine □□□□□

For the 1st □, there are 7 choices

For the 2nd □, there are 6 choices (since 1 out of the 7 numbers is already used)

For the 3rd □, there are 5 choices (since 2 out of the 7 numbers are used)

And so on...

You might be interested in
What is the sum of (7x - 6y) and (x plus y)
Ymorist [56]
Heya user

we have

7x - 6y and x + y

according to the question

( 7x - 6y ) + ( x + y )

→ 7x - 6 y +x + y

→ 8x - 5y

Hope This helps you
3 0
3 years ago
Find the volume of the triangular prism
Bezzdna [24]
If you use the formula V=bh you can find the volume of a tranangular prism.
To find the area of the triangle you have to use the formula A=1/2bh

A=1/2(14)(20)=140ft2= Base of the triangle
V=bh V=140x30
V=4200ft2
4 0
2 years ago
Labor rate = $7.50 per hour Labor time = 6.5 hours Retail price of parts = $0 Total job cost = $82.00 Overhead rate?
Ulleksa [173]
Total cost job=
Retail price of parts+labor cost+manufacturing overhead

Total cost job 82

Retail price of parts 0

Labor cost=7.5×6.5=48.75

Manufacturing overhead ?

82=0+48.75+?

?=82−48.75

?=33.25

Manufacturing overhead is 33.25

Now find manufacturing overhead rate from the cost of labor
33.25÷48.75=0.682×100=68.2%

The answer 68.2%




4 0
2 years ago
if we increased one side of a square by 5 units and decreased the other by 3 units the area of the resulting rectangle would be
zvonat [6]

Answer:

18 units

Step-by-step explanation:

So let's list out the sides.

for the first square let's just call them x

for the second square then they would be x+5 and x-3

So let's write out their areas we will cal the area of the first one z

x*x = z

(x+5)*(x-3) = z+21

since z = x^2 we can set up the second equation as a quadratic.

(x+5)*(x-3) = x^2 + 21

x^2 - 3x + 5x - 15 = x^2 + 21

But look, the x^2s cancel out

2x - 15 = 21

2x = 36

x = 18

Test it out and see if it fits the description, And if you don't understand anything just let me know so I can explain more.  

3 0
3 years ago
Solve for x. See the image below!
Nataly [62]

Answer:

x = 17

Step-by-step explanation:

in such a constellation (two beams from the same point of origin cut through the same circle) the relative relation between the segments of these beams to the overall length of the beam have to be the same :

7 × (7+x) = 8 × (8+13)

49 + 7x = 8 × 21 = 168

7x = 119

x = 17

4 0
2 years ago
Other questions:
  • Which of the following best describes the solutions to the inequality shown below?
    14·1 answer
  • Need help will give 5 stars.
    13·2 answers
  • A stockholder sold her shares and made a profit of $1,327. If that is a profit of 22%, how much were the shares worth when she o
    7·1 answer
  • I’m doing operations and interfers<br> Need the answer have a test tmr
    12·1 answer
  • frank has two same size rectangles divided into the same number of equal parts. one rectangle has 3/4 of the parts shaded, and t
    11·2 answers
  • Select the correct answer.
    7·1 answer
  • How can you write the expression 7(b-2) in words?
    6·2 answers
  • Simplify: 7(-2x - 3) *<br> -14x - 21<br> -14x - 3<br><br> 14x - 21<br><br> 14x - 3
    6·1 answer
  • how many lines of symmetry does does this triangle have ?
    9·1 answer
  • Use this graph and the shapes shown to complete the tasks in this activity.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!