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
enyata [817]
3 years ago
9

Evaluate C(7,5) please

Mathematics
2 answers:
wel3 years ago
8 0

Answer: 21

Step-by-step explanation: This is a combination of 7 objects taken 5 at a time

nCr = n! / r! * (n - r)!

7C5 = 7! / (5! (7-5)!)

      = 7! /(5! 2!)

      = (7*6*5*4*3*2*1)

         -----------------------

         5*4*3*2*1  * 2*1

Canceling

     =    7*6/ (2*1)

     = 21

nikklg [1K]3 years ago
4 0
21! Have a nice day and I hope this helped
You might be interested in
How has the school closing effected your daily life? How do you feel about learning math online? Be sure to mention some benefit
Zigmanuir [339]

Answer:

Step-by-step explanation:

While some might feel that online learning is the fun leisurely form of schooling that grants tons of free time, it honestly gets old quick. Being in quarantine makes it all the more worse because you do nothing all day. On the subject of math though, it is a disservice to have to learn math online. Personally, it is my experience that having a physical teacher and classroom to learn with is crucial to ones mathematical ability, but it's not the end of the world, it won't last long and it won't affect you that bad. Sure, the benefits include having more control over your day which is a good source of preparation for college life and responsibilities of being an adult, but you lose daily interpersonal interactions and typical casual daily exercise, since you no longer walk to class. Nevertheless, we will push on.

4 0
3 years ago
Alex, Toby and Samuel are playing a game together.
Shalnov [3]

Answer:

1/9

Step-by-step explanation:

There are three places and three people.

Times them together for the total outcomes:

1/3 x 1/3= 1/9

8 0
3 years ago
Why does -2.4-(-7)have the same result as -2.4+7? Explain your reasoning.
asambeis [7]

Answer:

-2.4-(-7) has the same result as -2+7 because the negative sign and the minus sign cancel each other out. Think of it like this. If you cross the negative sign and the minus sign together, then it makes a plus sign.

Step-by-step explanation:

I gave a basic answer. You might have to elaborate more on this.

8 0
4 years ago
Read 2 more answers
An adult short-eared owl weighed 1/2 pound. A baby short-eared owl weighed 2/9 pound. What was the total weight of the two owls?
bezimeni [28]
Total weight of the two owls are 2/3
3 0
3 years ago
What is 6002310.583 in word form?
Pani-rosa [81]
<span>6 002 310.583

Six million and two thousand three hundred and ten point five eight three.
</span>
5 0
3 years ago
Other questions:
  • Consider these three numbers written in scientific notation.
    9·1 answer
  • Solve for x.<br> 8 + x = -4
    11·2 answers
  • The density function for the number of times the riders scream on a roller coaster is given by....
    15·1 answer
  • Which statements are true about x? Select three options. x ∈ B ⋃ C x ∈ B ∩ C x ∈ A ⋃ C x ∈ A ∩ C x ∈ A
    5·2 answers
  • Write the equation of a line that is perpendicular to y=7/5 x+6, that passes through the point (2,-6).
    14·1 answer
  • 6 &gt; -4h + 10<br> How do I do this
    13·1 answer
  • Without enzymes it would be a lot more difficult to digest and breakdown the food we eat.
    15·1 answer
  • Find the values of x and y. 107<br> X= y=​
    13·1 answer
  • Y=5x² – 1<br><br> Please answer I need asap thank you!!
    12·1 answer
  • Please place the dot for me(20 points will give brainliest!!!)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!