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The number of letters in the language of a weird country is 5 and no one in that

country uses more than 3 letters to make a word. What is the highest number of

words one can make in that language?

country uses more than 3 letters to make a word. What is the highest number of

words one can make in that language?

An optimization model includes a chance constraint to satisfy demand of a particular product. The demand is uncertain and is modeled with an integer uniform distribution with parameter value of 0 and 4. That is, the probability that the demand is 0, 1, 2, 3, or 4 is exactly the same. A decision is made to order 2 units of the product from a supplier in order to satisfy the uncertain demand. What is the value at risk (VaR) for the demand constraint?

Prove that $\sum_{i=1}^s a_i=2^{n}-1-\sum_{i=s+1}^n a_i=2^s-1. Note that $\sum_{i=1}^n=2^n-1.

INTEGERS AND DIVISIBILITY CONCEPTS

1.Show that if d ≠ 0, then d | (-a) and -d | a.

2.Show that it is false that a>b implies a|b.

3.Is 980637 divisible by 7? Show.

4.Determine whether of the following are divisible by 3, 5, 7, 9, or 11 using the methods described int he text:

A. 1969

B. 28350

C. 1421

D. 17303

E. 116424

F. 1089

5.Classify each of the following as true or false:

A. 6 is a divisor of 24.

B. 40 is a multiple of 8.

C. 0 divides 10.

D. 13 is a factor of 33.

E. 12 divides 6.

6.Show that 23n -1 is divisible by 7.

7.Show that 5n - 1 is divisible by 4.

GREATEST COMMON FACTOR (GCF) AND THE LEAST COMMON MULTIPLE (LCM)

1.Calculate (3141 , 1592).

2.Find x and y such that, 3141x + 1592y =1.

3.Find the solution of 803x + 154y = 33.

4.Find the GCD and LCM of the numbers 63,24, 99.

1.Show that if d ≠ 0, then d | (-a) and -d | a.

2.Show that it is false that a>b implies a|b.

3.Is 980637 divisible by 7? Show.

4.Determine whether of the following are divisible by 3, 5, 7, 9, or 11 using the methods described int he text:

A. 1969

B. 28350

C. 1421

D. 17303

E. 116424

F. 1089

5.Classify each of the following as true or false:

A. 6 is a divisor of 24.

B. 40 is a multiple of 8.

C. 0 divides 10.

D. 13 is a factor of 33.

E. 12 divides 6.

6.Show that 23n -1 is divisible by 7.

7.Show that 5n - 1 is divisible by 4.

GREATEST COMMON FACTOR (GCF) AND THE LEAST COMMON MULTIPLE (LCM)

1.Calculate (3141 , 1592).

2.Find x and y such that, 3141x + 1592y =1.

3.Find the solution of 803x + 154y = 33.

4.Find the GCD and LCM of the numbers 63,24, 99.

Give an example of a LPP with more than one optimal solution

A company produces their products P,Q and R from raw materials A,B and C .

To produce one unit of the product P, 2 units of A, 5 units of B and 4 units of C are

required. To produce one unit of the product Q, 1 unit of A, 1 unit of B and 2 units

of C are required. To produce one unit of the product R, 1 unit of A, 1 unit of B and ,

1 unit of C are required. Profits per unit of the products P,Q and R are Rs.10, Rs 5

and Rs. 4 respectively. The company has 10 units of A, 20 units of B and 20 units of

C. Formulate the problem of maximization of profit as a LPP.

To produce one unit of the product P, 2 units of A, 5 units of B and 4 units of C are

required. To produce one unit of the product Q, 1 unit of A, 1 unit of B and 2 units

of C are required. To produce one unit of the product R, 1 unit of A, 1 unit of B and ,

1 unit of C are required. Profits per unit of the products P,Q and R are Rs.10, Rs 5

and Rs. 4 respectively. The company has 10 units of A, 20 units of B and 20 units of

C. Formulate the problem of maximization of profit as a LPP.

A pay-off matrix can have more than one saddle point. True or false

In a transportation problem, if all the source availabilities a_i and all the requirements

b_j are integers, then the optimal solution consists of integers only.

Its True or false ?

b_j are integers, then the optimal solution consists of integers only.

Its True or false ?

1.Show that if d ≠ 0, then d | (-a) and -d | a.

2.Show that it is false that a>b implies a|b.

3.Is 980637 divisible by 7? Show.

4.Determine whether of the following are divisible by 3, 5, 7, 9, or 11 using the methods described int he text:

A. 1969

B. 28350

C. 1421

D. 17303

E. 116424

F. 1089

5.Classify each of the following as true or false:

A. 6 is a divisor of 24.

B. 40 is a multiple of 8.

C. 0 divides 10.

D. 13 is a factor of 33.

E. 12 divides 6.

6.Show that 23n -1 is divisible by 7.

7.Show that 5n - 1 is divisible by 4.

2.Show that it is false that a>b implies a|b.

3.Is 980637 divisible by 7? Show.

4.Determine whether of the following are divisible by 3, 5, 7, 9, or 11 using the methods described int he text:

A. 1969

B. 28350

C. 1421

D. 17303

E. 116424

F. 1089

5.Classify each of the following as true or false:

A. 6 is a divisor of 24.

B. 40 is a multiple of 8.

C. 0 divides 10.

D. 13 is a factor of 33.

E. 12 divides 6.

6.Show that 23n -1 is divisible by 7.

7.Show that 5n - 1 is divisible by 4.

If there are 3 roads from town A to town B And 4 roads from town B to town C, in how many ways can one go from town A to town C and back to town A, through town B, without passing through the same road twice?