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
densk [106]
3 years ago
14

A cupboard contains 5 pairs of shoes, each of a different style. How many ways are there to select 4 of the shoes from the cupbo

ard so that the selection contains exactly one matching pair? Note that each pair of shoes consists of distinguishable left and right foot.
Mathematics
1 answer:
Andreas93 [3]3 years ago
4 0
The solution to the problem is as follows:

If there are 6 pairs of shoes:

C(6,1) = choose the matching pair = 6 choices. 
C(10,1) = 1 shoe from the other 10. 
Now you cannot choose the mate of that one, 
so you have 8 other shoes to choose from. 

6 * 10 * 8 = 480 choices of "4 shoes". 
But then we must divide by 2, because the last two shoes 
could be chosen in either order. 

That gives 240 choices - same as your teacher's answer, 
<span>but via a different route. 
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
You might be interested in
HELPPPP will mark brainliest
ArbitrLikvidat [17]

Answer:

12x-2

Step-by-step explanation:

You need to add 5x+1 and 7x-3.

5x+1+7x-3.

We need to organize this into common terms.

5x+7x+1-3

Now we simplify.

12x-2

That is the final answer!!

Hope this helped!!!! :D

6 0
3 years ago
Sin 2x=
loris [4]

Answer:

A,C

Step-by-step explanation:

sin 2x=sin (x+x)=sinx cos x+cos x sin x=2 sin x cos x

or =2 cos x sin x

[sinx cox=cos x sin x ]

6 0
3 years ago
Mr. Haines drives 12 kilometers from home to work each day. How many meters are equal to 12 kilometers?
katovenus [111]

Answer:

12000 meters

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Plz help super fast​
marshall27 [118]

Answer:

E: L is perpendicular to a line with slope -\frac{3}{2}.

Lines are perpendicular if the negative reciprocal of the slope is equal. For example, the reciprocal of \frac{2}{3} is \frac{3}{2} (remember, to get the reciprocal, simply switch the numerator and the denominator).

So, the negative reciprocal of \frac{2}{3} is -\frac{3}{2}. This represents the slope of a line that is perpendicular.

6 0
3 years ago
The measure of the largest angle of a triangle is three times the measure of the smallest triangle and 2 more than the third ang
Zigmanuir [339]

Answer:

90 degrees, 60 degrees and 30 degrees

Step-by-step explanation:

90/3 = 30

30 x 2 = 60

6 0
3 years ago
Other questions:
  • Four interior angles of a pentagon measure 156°, 72°, 98°, and 87°. What is the measure of the final interior angle?
    8·2 answers
  • What is the slope of 3y=6x-1 ?
    7·1 answer
  • Louisa has 4 yards of fabric. She uses 2/5 yard of fabric to make a doll dress. How many doll dresses can Louisa make with the f
    12·1 answer
  • Find the slope of the line connecting the point (4,8) to the point (8,12)
    8·1 answer
  • Please answer correctly !!!!!!!! Will mark brainliest answer !!!!!!!!!!!!
    7·1 answer
  • Help meeeeee plzzzzzz
    15·1 answer
  • Can someone help me with this question?
    8·1 answer
  • Amelia wants to rearrange the furniture in her room. She makes a scale drawing of her rectangular room,
    9·1 answer
  • Can someone help with his it’s timed!!!! please help me out
    14·1 answer
  • Tonya uses the greatest common factor and the distributive property to rewrite this sum:
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!