Other Math Answers

What does creating opportunities for reflective thought mean?

Which strategy maybe used before phase?

Find the maximum and minimum values of f(x,y,z)=xyz subject to x+y+z=1 x>or equal to 0; y> or equal to 0; z> or equal to 0.

Expand x^y+3y -2 along the line x-1 and y+2, using Taylor's Theorem of the mean

Q−4:

a) Consider the design of a communication system.

i. How many three-digit phone prefixes that are usedto represent a particular geographic area (such as an area code) can be created from the digits 0 through 9?

ii. As in part i., how many three-digit phone prefixes are possible that do not start with 0 or 1, but contain 0 or 1 as the middle digit?

iii. How many three-digit phone prefixes are possible in which no digit appears more than once in each prefix?

b) Suppose that an operating room needs to handle three knee, four hip, and five shoulder surgeries.

i. How many different sequences are possible?

ii. How many different sequences have all hip, knee, and shoulder surgeries scheduled consecutively?

iii. How many different schedules begin and end with a knee surgery?

A seller sells 2 types of sugar packets, white sugar and brown sugar. The seller can sell up to a

maximum of 1000 units of sugar packets with the condition that she must sell at least 200 units

of white sugar packets and 360 units of brown sugar packets. The seller gets RM0.40 for every

unit of white sugar packet sold and RM0.8 for every unit of brown sugar packet sold. Given

the seller sold x units of white sugar packet and y units of brown sugar packet and the profit

obtain is at least RM400.

(a)

Find the objective function and formulate the system of inequalities satisfying the given

constraints.

(b)

Sketch the graph and shade the feasible region, R satisfying the system of inequalities

in part (a).

(c)

Determine the number of white sugar packet and brown sugar packet that the seller

should sold to maximize the profit obtained. Hence, determine the maximum profit

obtained by the dealer.

You are putting a strip of tiles on a wall. The strip consists of two

columns of n tiles each.

n = 6

You have three different colours with which to paint the tiles. You want to

colour the strip in such a way that each tile has a uniform colour and that

the colour of a given tile is different from the colour of the tile next to it in

the same row and from the colour of the tile above it or below it in the same

column.

Find a formula, depending on n, for the number of colourings that satisfy

the given constraints

5. Distinguish between Descriptive statistics and Inferential statistics. Also identify key steps for Descriptive and Inferential statistical problems.

6. Write the problem statement of the proposal that you submitted as a partial fulfillment of this course.

7. Discuss the advantages of using a questionnaire as an instrument of data collection.

8. Distinguish between quota sampling and stratified random sampling. Also give an example of the application of the two sampling types.

9. Discuss the advantages of using a questionnaire as an instrument of data collection.

B. On each blank space, write the precise words or phrases to which each of the following sentences refers to.

1) _______________________ is the logical reasoning/approach applied in quantitative research to test theory/hypothesis.

2) ________________________ is a type of probability sampling which entails dividing population into groups and taking a random sample from each group proportionally.

3) ________________________ is a type of non-probability sampling which starts with small number of cases and use them to establish contact with others.

4) _______________________ is a complete list of all the cases/elements in the target population from which samples will be drawn.

5) ________________________ is a standardized way of acknowledging the sources of information and ideas that are used in academic /scientific papers.

Revenue A manufacturer produces three models of portable CD players, which are shipped to two warehouses. The number of units of model that are shipped to warehouse j

j is represented by a

ij

aij in the matrix

A=⎡

⎣

⎢

5,000

6,000

8,000

4,000

10,000

5,000

⎤

⎦

⎥

A=[5,0004,0006,00010,0008,0005,000]

B=[$39.50$44.50$56.50]

B=[$39.50$44.50$56.50]