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
Paraphin [41]
3 years ago
8

Choose the correct formula for combination. A . n!/r!(n-r)! B. n!/(n-r)!

Mathematics
1 answer:
OleMash [197]3 years ago
4 0

Answer:

B

Step-by-step explanation:

The number of combinations of n objects taken r at a time is determined by the following formula: C(n,r)=n!/(n−r)!

You might be interested in
Solve for B -(12 x 2) x (-6) = -12 x (2 x b)<br> A. -6<br> B. 6<br> C. -12<br> D. 12
myrzilka [38]

<u><em>Answer:</em></u>

<u><em>Option A</em></u>

<u><em>Step-by-step explanation:</em></u>

<u><em>-(12 x 2) x (-6) = -12 x (2 x b)</em></u>

<u><em>=> -24 x -6 = -12 x 2b</em></u>

<u><em>=> 144 = -24b</em></u>

<u><em>=> b = -6</em></u>

<u><em>Hoped this helped.</em></u>

5 0
2 years ago
How do I do a dilation? I'm in 8th grade and failing cuz I don't understand? <br>​
Alex17521 [72]

Answer:

Starting with ΔABC, draw the dilation image of the triangle with a center at the origin and a scale factor of two.Dilations involve multiplication. Dilation with scale factor 2, multiply by 2.

5 0
3 years ago
GeomeTry, writing equations of parallel lines from graphs
Feliz [49]
Answer: draw them out dude

Explanation: TrY geometry
7 0
3 years ago
Find the equation of the line parallel to -5x+2y=12 and through (10,21)
Ksivusya [100]

y=5/2x-4

Step-by-step explanation:

im pretty sure

8 0
3 years ago
Read 2 more answers
21+15a distributive property equavilent expression
Natalija [7]
36 because if you add 21 + 15 you get 36. How by adding it all together. I hope this helped you bye
8 0
3 years ago
Other questions:
  • Right triangle ABC and right triangle ACD overlap as shown below. Angle DAC measures 20 degrees and angel BCA measures 30 degree
    14·1 answer
  • This is the floorplan for an irregular-shaped bedroom. You will need to find the perimeter of the room so that you can install c
    8·1 answer
  • the outer dimensions of a picture frame are 25 inches by 20 inches. If the area inside the picture frame is 266 square inches, w
    9·1 answer
  • Why do you weigh more on earth than space?
    10·1 answer
  • given the linear equation c=30+6y where c is the cost of the dictionary y years after 1904. determine the cost of the dictionary
    12·1 answer
  • What equation is equvalent to 11-4(78)
    6·1 answer
  • The total length of a road trip was 15.6 hours. If highway signs are posted every 0.06 hours, including one at the end of the ro
    7·1 answer
  • The sides od a triangle are in the ratio3:4:5 &amp;uts perimeter 144 cm .find tye area​
    5·1 answer
  • 12,000+800-200= i need help
    15·1 answer
  • What are the exact steps to solve for the x-intercepts of f(x)= −4x2 + 4x + 8? What about −9 = x2 + 6x? Please explain thoroughl
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!