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
maks197457 [2]
3 years ago
14

Last year at a certain high school, 12 students sought the nomination for president of the student body. In how many ways could

the voters (student body) rank their first 4 choices?
Mathematics
1 answer:
Vlada [557]3 years ago
8 0

Answer:

<h3>495 different ways</h3>

Step-by-step explanation:

This question bothers on combination. Combination has to do with selection. When selecting r objects from a pool of n objects, this is expressed as;

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

For us to choose rank the first 4 choices from 12 students nominated, this can be done in 12C4 number of ways;

12C4 = 12!/(12-4)!4!

12C4 = 12!/8!4!

12C4 = 12*11*10*9*8!/8!*4*3*2

12C4 = 12*11*10*9/24

12C4 = 11880/24

12C4 = 495 ways

Hence this can be done in 495 different ways

You might be interested in
16% of 130 is what number
earnstyle [38]
130 • .16 = 20.8 or 20 (4/5) or 104/5
Put the answer as 20.8 unless specified otherwise.
.16 is 16%
5 0
3 years ago
Read 2 more answers
What is the simplified answer of “One less than X is less than -1 OR 3 more than X is greater than or equal to 7.” This is solvi
blsea [12.9K]
x - 1 \ \textless \  -1 OR x + 3  \geq 7
5 0
2 years ago
If a video game was 10% off and the amount of the discount was $6 what was the original price?
Alenkinab [10]

Answer: the original price was $60! <3

Step-by-step explanation:

4 0
3 years ago
Solve linear equation 2y+20=2-y. 3y+20=2
Fiesta28 [93]

Answer:

  y = -6

Step-by-step explanation:

y is multiplied by 3 and 20 is added to the sum. We undo these operations in reverse order.

First we subtract 20 from both sides of the equation:

  3y = -18

Then we divide both sides of the equation by 3 to undo the multiplication.

  y = -18/3 = -6

The solution is y = -6.

3 0
3 years ago
Can someone please explain this problem to me idk what I am doing wrong and can you draw the problem for me thanks
Bogdan [553]

Answer:

  you're not doing anything wrong

Step-by-step explanation:

In order for cos⁻¹ to be a function, its range must be restricted to [0, π]. The cosine value that is its argument is cos(-4π/3) = -1/2. You have properly identified cos⁻¹(-1/2) to be 2π/3.

__

Cos and cos⁻¹ are conceptually inverse functions. Hence, conceptually, cos⁻¹(cos(x)) = x, regardless of the value of x. The expected answer here may be -4π/3.

As we discussed above, that would be incorrect. Cos⁻¹ cannot produce output values in the range [-π, -2π] unless it is specifically defined to do so. That would be an unusual definition of cos⁻¹. Nothing in the problem statement suggests anything other than the usual definition of cos⁻¹ applies.

__

This is a good one to discuss with your teacher.

4 0
2 years ago
Other questions:
  • Elimination method for -4x-2y=-12 4x+8y=-24
    11·2 answers
  • If two vertices of an equilateral triangle are the point (3,4) and (-2,3), find the coordinate of third vertic!s
    14·1 answer
  • Compare the values of the underlined digits. <br> 2,000 and 200
    7·1 answer
  • 13 1/10-7 9/10<br><br> i need help
    9·2 answers
  • Issac tosses a quarter off of a bridge, creating the shape of a parabola. The parabola can be represented by the equation h=-16t
    7·1 answer
  • Write 36.28 in word form
    5·2 answers
  • 21:29
    15·1 answer
  • PLZ HELP ASAP!!! NEED TO FINISH!!!! BRAINLIEST ANSWER IF CORRECT!
    11·1 answer
  • 5x+2y=7 as a ordered pair
    8·2 answers
  • Which number line represents the solution to the inequality x - 3 &gt; 2
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!