Math Problem Statement

The board of directors of the XYZ Corporation has 19 members. (a) How many different slates of four members (a President, a Vice President, a Treasurer, and a Secretary) can be chosen? (b) How many delegations of four members (all members are equal) can be chosen?

Solution

Let me extract and analyze the text from the uploaded image. Then I will provide a detailed solution. PIL import Image import pytesseract

Load the image from the provided file path

image_path = "/mnt/data/1733855885649uvqi7sbv.jpg" img = Image.open(image_path)

Use Tesseract to extract text from the image

extracted_text = pytesseract.image_to_string(img) extracted_text### Extracted Problem Details:

The problem involves the selection of members from a board of 19 members, and it is divided into two parts:

  1. Part (a): How many different slates of four members (a President, a Vice President, a Treasurer, and a Secretary) can be chosen?
    This involves assigning specific roles to four members, so the order in which members are chosen matters.

  2. Part (b): How many delegations of four members (all members are equal) can be chosen?
    Here, the members are chosen as a group with no specific roles, so the order does not matter.

Let's solve these step by step.


Solution:

Part (a):

We are assigning specific roles to the four members, so this is a problem of permutations. The formula for permutations is:

nPr=n!(nr)!nP_r = \frac{n!}{(n - r)!}

Where:

  • n=19n = 19 (total members)
  • r=4r = 4 (positions to fill)

The answer is expressed as nPrnP_r: 19P4=19!(194)!19P_4 = \frac{19!}{(19 - 4)!}


Part (b):

Here, we are choosing a group of four members without assigning roles, so this is a problem of combinations. The formula for combinations is:

nCr=n!r!(nr)!nC_r = \frac{n!}{r!(n - r)!}

Where:

  • n=19n = 19 (total members)
  • r=4r = 4 (members to choose)

The answer is expressed as nCrnC_r: 19C4=19!4!(194)!19C_4 = \frac{19!}{4!(19 - 4)!}


Final Answers:

  1. Part (a): 19P419P_4
  2. Part (b): 19C419C_4

Would you like me to elaborate further on how to simplify these expressions or provide additional examples?


Follow-Up Questions:

  1. What is the difference between permutations and combinations in practical scenarios?
  2. Can you calculate 19P419P_4 and 19C419C_4 numerically?
  3. How does the problem change if only three members were to be chosen?
  4. What are the factorial values for 19!19! and 15!15! used in these calculations?
  5. Can you explain why order matters in Part (a) but not in Part (b)?

Tip: Always double-check whether "order matters" in a selection problem—it determines whether to use permutations or combinations.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Permutations
Combinations

Formulas

Permutations formula: nP_r = n! / (n - r)!
Combinations formula: nC_r = n! / (r! * (n - r)!)

Theorems

-

Suitable Grade Level

Grades 9-12