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
HACTEHA [7]
3 years ago
13

Need urgent help in mathematics!! Will mark brainliest!!!!

Mathematics
1 answer:
sesenic [268]3 years ago
8 0

Hey there!!

How do we solve this problem :

We will use the combinations formula to solve this :

c ( n , r ) where n = 11 and r = 2

c ( n , r ) =  n ! / r ! ( n - r ) !

... 11 ! / 2 ! ( 11 - 2 ) !

... 11! / 2! × 9!

... 11! / 2 × 9!

... 11×10×9×8×7×6×5×4×3×2 / 2×9×8×7×6×5×4×3×2

... 11×10 / 2

... 11 × 5

... 55 combinations.

Hence, the required answer = 55 , option ( d )

Hope my answer helps!

You might be interested in
The question is below
saul85 [17]

Answer:

60 degrees

Step-by-step explanation:

The sum of the angles in a triangle are 180 degrees. The angles look the same size, so divide 180 by 3, and you get 60 degrees

7 0
2 years ago
Read 2 more answers
What Is the area of the trapezoid​
umka2103 [35]

18m

Step-by-step explanation:

5x3=15 +3 =18

5 0
3 years ago
In order for figure EFGH to be a trapozoid, which of the following must be true?
kicyunya [14]
You must connect all the letters to create the shape of a trapezoid


7 0
3 years ago
Find the slope of the line passing through the points (-5,3) and (-7,5).
Alekssandra [29.7K]

Step-by-step explanation:

points (-7,5) and (5,-3)?

This would mean to subtract the y coordinates:

5 - (-3) = 8

Then subtract the x coordinates in the same order:

-7 - 5 = -12

Then divide the y result by the x result for the slope:

8/-12 is the slope.

In simplest form, this is equivalent to -2/3

4 0
2 years ago
Find the m∠CDE, if m∠BCA = 90° and m∠BAC =57°.<br><br> 33°<br> 43°<br> 57°<br> 67°
garri49 [273]

Answer:

33

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is 32.043 in expanded form?
    9·1 answer
  • What is the value of k?<br> k=<br> m
    10·2 answers
  • According to a study conducted by the Toronto-based social media analytics firm Sysomos, of all tweets get no reaction. That is,
    8·1 answer
  • Is it 1,2,3 or 4? help please
    9·1 answer
  • In a sample of 50 museum visitors one afternoon, 22 female and 28 were male. If there were 800 museum visitors that afternoon, e
    5·2 answers
  • When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population into 2,007 g
    11·1 answer
  • A stop sign is in the shape of a regular octagon what is the measure of each exterior angle
    9·2 answers
  • Solve the system of equations and choose the correct ordered pair.2x + 6y = 63x – 2y = 20
    9·1 answer
  • The _____of a segment divides the segment into two segments of equal length.
    5·2 answers
  • Write an expression that is equivalent to (-16)^-2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!