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
zlopas [31]
3 years ago
15

1. Alicia has 7 paintings she wants to hang side by side on her wall.

Mathematics
2 answers:
Kipish [7]3 years ago
8 0

A.

If we take 7 paintings to be hung in 7 spaces side by side, the first space can have any one of the 7 paintings, the second space can have any one of the remaining 6 paintings (as 1 is already hung), the third space can have any one of the remaining 5 paintings (as 2 already hung)...It goes on like this.

So we have 7*6*5*4*3*2*1=5040 ways to arrange all the paintings from left to write. <em>(in factorial notation it is 7!=5040)</em>

B.

We use combinations rather than permutations because order doesn't matter. If we name the paintings A,B,C,D,E,F, and G, groups of 3 paintings of ABC or ACB are the same. So we evaluate 7C3 using the combination formula,

nCr=\frac{n!}{(n-r)!r!}

We have,

7C3=\frac{7!}{(7-3)!*3!} = \frac{7!}{4!*3!} = 35

C.

This is similar to part A in some ways. Any 3 pictures can be arranged in 3! different ways. 3!=3*2*1=6. So, 6 different ways.


ANSWER:

A) 5040 ways

B) 35 different groups

C) 6 ways

ExtremeBDS [4]3 years ago
8 0

solution is attached below


You might be interested in
A candy company that makes colored candies claims that​ 10% of the candies it produces are green and that bags are packed random
melamori03 [73]

No. The sample size is too small to be reliable. If there were many bags of 500 candies that consistently showed a larger-than-marketed amount of green candy, that will be better proof.

6 0
3 years ago
DO IT FOR TIMOTHEE
Arte-miy333 [17]

Answer:

Via its graph, you can identify exponential and linear functions. Linear functions are straight lines, while curved lines are exponential functions. By the adjustment in y, you can also recognize them. If you apply the same number to y, then the function changes continuously and is linear.

Step-by-step explanation:

5 0
2 years ago
Which linear function includes the points (-3 1) and (-2 4)
Ivahew [28]
A linear function that includes the points you gave would be:
f(x)=3x+10
OR
y=3x+10

I hope this helps!
3 0
3 years ago
The length of the base of an isosceles triangle is x. The length of the leg is 2x-2. The Perimeter of the triangle is 46. Find X
Contact [7]

Answer:

<h2><u><em>x = 10</em></u></h2>

Step-by-step explanation:

The length of the base of an isosceles triangle is x. The length of the leg is 2x-2. The Perimeter of the triangle is 46. Find X.

2x - 2 + 2x - 2 + x = 46

5x - 2 - 2 = 46

5x = 50

x = 50 : 5

x = 10

8 0
2 years ago
A square pyramid is shown. What is the surface area of the pyramid? Enter your answer in the box.
zloy xaker [14]

Answer:I believe the answer should be 120 square cm (:

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What is the function rule
    14·1 answer
  • What does f(x) mean?
    13·1 answer
  • PLEASE HELP MEE I CAN'T SOLVE THIS BY MYSELF!
    11·1 answer
  • I Need To Change This To Simplest Form
    10·2 answers
  • 3. Yaritza and Eddy race to school on their bikes. Yaritza bikes 2 miles in 12 minutes, and
    10·1 answer
  • Is 0.45545455545… a rational or irrational number? Explain two reasons for your classification.
    11·1 answer
  • I have a question and I cant seem figure it out. It says( Triangle ABC is a right triangle. Angle B is the right angle, side A i
    14·1 answer
  • Some of my cursed images what do u think
    10·1 answer
  • Help asap plsss thank youuuuu!
    13·1 answer
  • Pretty Easy questions. Answer for lots of points.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!