Friday

January 30, 2015

January 30, 2015

Number of results: 99,681

**math**

If A is a finite set and B is a proper subset of A, prove that |B| < |A|. Hint: B is finite. What is the union of the disjoint sets B and A - B? Note: |A| = size of A
*April 10, 2007 by sara*

**finite mathematics**

Find the present value of the ordinary annuity. Please round the answer to the nearest cent.$2,000 per semiannual period for 7 yr at 12%/year compounded semiannually
*October 23, 2012 by Anonymous*

**University studies**

According to the Center for Mathematics Excellence, which of the following is a math myth? A. Knowing the rules and how to use them is the most important part of math. B. Even people who are highly skilled in mathematics and science find these subjects to be challenging C. ...
*November 3, 2011 by lil Bee*

**Mathematics**

Among 500 freshmen pursuing a business degree at a university, 313 are enrolled in an economics course, 205 are enrolled in a mathematics course, and 153 are enrolled in both an economics and a mathematics course. What is the probability that a freshman selected at random from...
*February 20, 2011 by Anonymous*

**math**

Prove that the union of two finite sets is finite. Hint: A U B = (A - B) U (B - A) U (A ∩ B) where U = union and ∩ = intersection
*April 10, 2007 by sara*

**Maths**

what are the meanings of Mathematics of Buying and Mathematics of Selling, using language from the Business Mathematics aspect.
*December 26, 2011 by ummu*

**math**

If rhys is late for his finite mathematics class, and the probability that he is on time is 3/4. however if he is on time, he is liable to be less concerned about punctuality for the next class and his probability being on time drops to 1/2. rhy is on time monday. find the ...
*November 19, 2011 by sally*

**math - please help!!**

If rhys is late for his finite mathematics class, and the probability that he is on time is 3/4. however if he is on time, he is liable to be less concerned about punctuality for the next class and his probability being on time drops to 1/2. rhy is on time monday. find the ...
*November 20, 2011 by linda*

**math,finite mathematics**

this is what i have so far for the following problem but i don't know what to do next: Use the simplex method to solve the linear programming problem minimize W = 4 y1 + 2y2 subject to: 3y1+2y2>=60 4y1+y2>=40 y1>=0,y2>=0 so this is how i started it: i did it in the...
*June 17, 2007 by student*

**probability**

out of 250 students interviewed at a community college, 90 were taking mathematics but not computer science, 160 were taking mathematics, and 50 were taking neither mathematics nor computer science. Find the probability that a student chosen at random was a. taking just ...
*October 27, 2011 by Emma*

**Math (polynomial functions)**

Hi there, Can someone please help me understand the relationship between the FINITE DIFFERENCE and leading coefficient in a polynomial? I need to be able to determine the leading coefficient from a finite difference.
*May 10, 2008 by Rumer*

**Math Essay**

I have to write this paper over the history of math, can you please give me some other websites that I can use? So far I have one website from wikipedia. Also, can you please read my introduction? As of today, there are plenty of new developments in the area of Mathematics. ...
*November 9, 2007 by Soly*

**Dr.Bob**

Please explain your convaluted answer? There is a finite answer. If you care to not give the finite querys answer,Don't reply
*September 25, 2010 by kary*

**math**

Resource allocation podunk institute of technologys math deaprtment offers two cources: finite math and applied calculus.each section of finite math has 60 studnets, and each section of applied calculus has 50. The department is allowed to offer a total of up to 110 sections...
*November 29, 2013 by Swayne*

**Finite Mathematics**

If a merchant deposits $1,500 annually at the end of each tax year in an IRA account paying interest at the rate of 10%/year compounded annually, how much will she have in her account at the end of 25 years? Round your answer to two decimal places
*June 6, 2013 by Reco*

**Math**

In a class of 550 students, students may take all, none, or a combination of courses as follows.? Draw a Venn diagram to find how many students are not in any of these courses. Mathematics-280 Science-200 Technology-230 Mathematics and Technology-110 Science and Technology-100...
*June 9, 2009 by Angie*

**Mathematics for Liberal Arts**

absolute value symbol l l First look at some small finite sets: Let A={1,5,9} B={U,V,W,X,Y,Z} C={Barrak Obama, Joe Biden, Hillary Clinton} Fill in the blanks with one of the symbols <,>,= lAl lBl lAl lCl lAl lAl lBl lCl Describe how you decided the comparative sizes of A...
*November 7, 2010 by Jamie*

**math**

Urban Community College is planning to offer courses in Finite Math, Applied Calculus, and Computer Methods. Each section of Finite Math has 40 students and earns the college $40,000 in revenue. Each section of Applied Calculus has 40 students and earns the college $60,000, ...
*October 16, 2010 by liz*

**Mathematics for Liberal Arts**

infinites absolute value symbol l l First look at some small finite sets: Let A={1,5,9} B={U,V,W,X,Y,Z} C={Barrak Obama, Joe Biden, Hillary Clinton} Fill in the blanks with one of the symbols <,>,= lAl lBl lAl lCl lAl lAl lBl lCl Describe how you decided the comparative ...
*November 7, 2010 by Jamie*

**math**

500 students sat for an examination in mathematics,physics and chemistry.45 passed all the three subject,60 passed mathematics and chemistry,70 passed physics and chemistry,50 passed mathematics and chemistry,10 passed in mathematics,80 passed in chemistry and 35 passed at ...
*November 13, 2011 by damilola*

**calculus**

what is the property that distinguishes finite sets from infinite sets (give examples of each to accompany explaination). finite sets are countable. Infinite sets are not. so what would be an example of an infinite set? one that never ends? yes. 1,2,3,4,... is an infinite set...
*March 27, 2007 by Anonymous*

**math, adult education**

If I take 0 out of arithmetic then what do I have left mathematically? What is the name for the mathematics that does not have zero in it? Is this mathematics used in the real world?
*March 1, 2009 by B.J.*

**Maths**

Among the examinees in an examination 30%, 35% and 45% failed in Statistics, in Mathematics, and in at least one of the subjects respectively. An examinee is selected at random. Find the probabilities that a. He failed in Mathematics only b. He passed in Statistics, if it is ...
*October 9, 2010 by Neeraj Bhanot*

**IGNOU probability**

Among the examinees in an examination 30%, 35% and 45% failed in Statistics, in Mathematics, and in at least one of the subjects respectively. An examinee is selected at random. Find the probabilities that a. He failed in Mathematics only b. He passed in Statistics, if it is ...
*October 15, 2010 by Dharmenra*

**calculus/finite**

I am taking an online finite math class, so I dont have an instuctor to sit down with me and help me. The text book is so hard to follow. One of the problems I have having a hard time with gives an initial tableau and asks us to use the simplex method to solve each ...
*December 6, 2009 by Amanda*

**Discrete Mathematics**

A tutor website wants to see how time spent studying for its content exams affects the ultimate scores. It asked its finite math test takers how much time they spent studying for the exam and compared that data against the final scores out of 60 points. It came up with the ...
*July 30, 2013 by Joy*

**Discrete Mathematics**

3. A tutoring site wants to see how time spent studying for its content exams affects the ultimate scores. It asked its finite math test takers how much time they spent studying for the exam and compared that data against the final scores out of 60 points. It came up with the ...
*July 30, 2013 by Joy*

**Finite Mathematics**

Two dice are rolled. Let the random variable X denote the number that falls uppermost on the first die and let Y denote the number that falls uppermost on the second die. (a) Find the probability distributions of X and Y. (b) Find the probability distribution of X + Y. x + y 2...
*April 18, 2012 by Price*

**math**

In a group of 105 students, 70 students passed Mathematics, 60 students passed History and 45 students passed Geography; 30 students passed Mathematics and History, 35 students passed History and Geography, 25 passed Mathematics and Geography, and 15 passed all three subjects...
*January 23, 2014 by Lucas*

**Math**

In a group of 105 students, 70 students passed Mathematics, 60 students passed History and 45 students passed Geography; 30 students passed Mathematics and History, 35 students passed History and Geography, 25 passed Mathematics and Geography, and 15 passed all three subjects...
*January 24, 2014 by Lucas*

**8th grade math**

At Maryland Middle School, there are 9 mathematics classes. If two mathematics classes are selected for a school competition, what is the number of possible outcomes?
*February 21, 2012 by Piggy*

**math**

At Maryland Middle School, there are 9 mathematics classes. If two mathematics classes are selected for a school competition, what is the number of possible outcomes?
*March 7, 2010 by ana*

**physics :thinking check please**

I think that: psi= A sin kx; is a solution to Schrodinger's time independent eqn for a particle confined: a) within an infinite pot well, and b) within the walls of a finite well;but psi= B exp(-kx) would only be a solution for outside the walls of a finite well. Am I close? ...
*April 30, 2009 by charlie*

**Statistics - can someone check me**

Frank has a 65% chance of receiving an A grade in geology, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. P(geo ...
*February 12, 2011 by Rachal*

**Finite Math**

A {r,u,v,y} B {r,v,w,x} C {r,u,w,z} t and s are on the outsides. (a) (A B) Cc (b) (A B C)c
*May 7, 2011 by Dee*

**finite math**

does 4/2x + 3 define y as a function of x?
*November 19, 2008 by dessy*

** finite math**

Maximize z= 5x + 5y Subject to 3x + 2y < 6 -x + 2y < 4 x,y >0
*April 7, 2012 by tinkle*

**Finite Math**

True or false. [A (B C)]c = (A B)c (A C)c
*August 3, 2013 by keith*

**mathematics**

how can you do the lcm to somethimg like 12000 without having to do all of that mathematics just to make it quicker?
*September 10, 2007 by alana*

**Finite Mathematics**

Jessica wants to accumulate $14,000 by the end of 5 yr in a special bank account, which she had opened for this purpose. To achieve this goal, Jessica plans to deposit a fixed sum of money into the account at the end of the month over the 5-yr period. If the bank pays interest...
*February 7, 2011 by Salvany*

**mathematics**

how do I cope with intermediate mathematics e.g log rhythms?
*October 16, 2012 by Aron*

**math**

What is a finite, infinite and an empty number?
*September 25, 2007 by Pat*

**finite math**

find the x and y-intercepts of the function y=x+32
*July 6, 2008 by freedom*

**finite math**

find the y-intercept of the function y=2x-8
*July 6, 2008 by freedom*

**finite math**

find the equation of the line 0.3,0.4 0.4,0.3 0.1,0.2 0.3,0.1
*March 5, 2009 by Princess*

**Finite Math**

Determine the 5th term of (2x+3y)^12
*May 6, 2012 by MV*

**finite math**

Suppose that E and F are two events P(E and F)=0.1 and P(E)=0.5. what is P(F/E)?
*June 17, 2014 by carol*

**finite math**

Suppose that E and F are two events P(E and F)=0.1 and P(E)=0.4 what is P(F/E)?
*June 17, 2014 by carol*

**Conceps of development**

Which of the following is the crux of the interrelationship between mathematics and science? A. About half of the basic math concepts are related to science concepts. B. The basic concepts of mathematics are the basic process skills of science. C. Basic mathematics process ...
*January 22, 2015 by Daniella*

**concept development**

Which of the following is the crux of the interrelationship between mathematics and science? A. About half of the basic math concepts are related to science concepts. B. The basic concepts of mathematics are the basic process skills of science. C. Basic mathematics process ...
*January 25, 2015 by Daniella*

**Math**

Frank has a 65% chance of receiving an A grade in geology, a 60% chance of receiving an A grade in mathematics, and a 77% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. I get: ...
*February 12, 2011 by Rachal*

**finite math**

find he inverse of matrix A and verify A= 1 -1 2 2 -3 -5 -1 3 5
*June 27, 2009 by crystal*

**Finite Math**

1. Find the inverse of the following matrix: [ 1 0 1 ] [ 2 -2 -1 ] [ 3 0 0 ]
*July 23, 2009 by Mike*

**Finite Math**

Solve the matrix equation AX =B for X using A=[2-3] [1 5] B=[4 ] [2 ]
*July 23, 2009 by Mike*

**Finite Math**

True or false. P (n, r) = r! C (n, r). explain why please, thanks
*August 3, 2013 by Keith*

**finite math**

Find the probability of P(E or F) if E and F are mutually exclusive P(E)=0.25 and P(F)=0.47
*June 17, 2014 by carol*

**mathematics**

why would someone study mathematics
*April 30, 2009 by stac*

**how concepts develop**

Which of the following is the crux of the interrelationship between mathematics and science? A. About half of the basic math concepts are related to science concepts. B. The basic concepts of mathematics are the basic process skills of science. C. Basic mathematics process ...
*January 15, 2015 by Daniea*

**Finite Math**

Find the slope of a line through the points (11,-2) and the origin.
*July 23, 2009 by Mike*

**Finite Math**

Pivot the system about the element in row 2, column 1. [3 3| 2] [9 4| 1]
*September 15, 2011 by Dee*

**Finite Math**

Sinking fund which the goal of $100,000 to reach with n=22, i= 0. 03
*February 7, 2012 by Ashley*

**college finite math**

Find the marginal average cost function: C(x)=10-e^-x
*November 18, 2012 by Jenny*

**Finite Math**

How long will it take $800 to earn $18 at 6% simple interest?
*February 17, 2013 by Matt*

**finite math**

how do I work this problem simple intrest I=Prt P= $54 r=4% and t=9months
*June 22, 2014 by carol*

**MATH**

I have been trying to do this problem for a couple of days but i cant seem to get the answer. Any help would be greatly appreciated. For each of the following forms determine whether the following limit type is indeterminate, always has a fixed finite value, or never has a ...
*April 16, 2012 by bobby*

**math,help,bobpursly**

What are some challenges for rational expressions? Also on my previous question about why are polynomials important bobpursly can you expalin it to me towards what you ment about your responce because i still do not undertand...thanks when you get a chance. Polynomials are ...
*March 5, 2007 by jas20*

**Elementary Math**

Decide which of the variables described is likely to have a normal or near-normal distribution. a. The number of courses remaining until graduation for the students in a small liberal arts college b. The SAT mathematics scores for students in an advanced placement mathematics ...
*August 9, 2009 by George*

**finite math**

solve the system of equation for all variables using a matix x-y-z=1 2x-3y+z=10 x+y-2z=0
*June 26, 2009 by crystal*

**Finite Math **

A coin is tossed 10 times. What is the probability that at least 8 heads appear?
*March 19, 2012 by MECCA *

**Finite Math**

Let A,B be events in a sample space. you are given the following probabilities: P(A)=0.8, P(B|A)=0.3, P(B|A^c)=0.8 Find: 1) P(B) 2) P(A|B) 3) P(A^c|B^c)
*July 23, 2012 by Preet*

**Elementary Mathematics**

How can a teacher help a student develop a strong understanding of the operations and of number relationship in Mathematics? This was a very interesting question, but I am having a hard time answering it. Need your help... Thanks alot!!!
*March 11, 2008 by Monica*

**math**

65 men 75 women are enfolled in calculus. There are 30 business majors, 40 biology majors, 50 computer science majors, and 20 mathematics majors. No person has a double. If a single calculus student is chosen, find the probability that that the student is not a mathematics major
*September 28, 2012 by greg*

**Physics...help please!**

A body of mass m moves in the +x direction, subject only to drag force: Fx= (-1/2)(CD*rhoair*S*vx^2) With drag coefficient CD, air density rho air, cross sectional area S, and velocity component vx. At time t=0 the body is at postion x=0 and has velocity of vx=v0 where v0 is ...
*March 7, 2011 by Roberto*

**Physics...help please!**

A body of mass m moves in the +x direction, subject only to drag force: Fx= (-1/2)(CD*rhoair*S*vx^2) With drag coefficient CD, air density rho air, cross sectional area S, and velocity component vx. At time t=0 the body is at postion x=0 and has velocity of vx=v0 where v0 is ...
*March 7, 2011 by Roberto*

**mathematics **

MATHEMATICS PLEASE HELP ME!!! In an arithmetic series the 3rd term is twice the 8th term find the first 25 terms
*March 6, 2014 by brad johnson*

**math algebra 1**

Who is the inventor of the FOIL method? some one answer me!! The history of mathematics in India is ancient. The Hindu Vedic tradition is an oral tradition of knowledge passed down in short verses, dating to before the invention of paper. The Vedas encompass a broad spectrum ...
*May 21, 2007 by amy*

**mathematics**

what are the 20 terms that are used in mathematics
*June 9, 2011 by renee*

**Finite Math**

Solve the matrix equation AX =B for X using: A= [ 2 -3] B= [4 ] [ 1 5] [2 ] (theres a blank space between the 4 and the 2)
*July 23, 2009 by Mike*

**mathematics**

It can be shown that for any positive integer n, the infinitely nested radical expression (n+(n+(n+....)^1/2)^1/2)^1/2 equals a finite number. What is the largest positive integer n≤999 such that this expression is equal to a positive integer? Details and assumptions A ...
*April 18, 2013 by Mathsfreak*

**AED**

What are some appropriate and effective ways to use technology in the mathematics classroom? How can you ensure that students do not depend too heavily on technology to complete mathematics assignments?
*November 17, 2008 by troyer0269*

**AED**

What are some appropriate and effective ways to use technology in the mathematics classroom? How can you ensure that students do not depend too heavily on technology to complete mathematics assignments?
*November 19, 2008 by troyer0269*

**Finite Math**

Consider an experiment with five possible outcomes, labeled as a,b,c,d and e. Give P(a)=P(b)=0.2, P(c)=0.25, P(d)=0.1 and let event H={a,b,c}, K={b,c,d} Find: 1) P(H|K) 2) P(H|K^c) 3) P(K|H)
*July 23, 2012 by Jessica*

**math 214**

Henry claims that a line segment has a finite number of points because it has two endpoints. How do you respond?
*February 16, 2010 by alicia *

**finite math**

using continous compound interest formula to find the indicated value A= 99000 P= 72466 R= 7.8% T= ?
*June 23, 2014 by carol*

**math**

Riena has six unmarked CDs in a box, where each is dedicated to exactly one of English, mathematics, French, American history, chemistry, and computer science. Answer the following questions: a. If she chooses a CD at random, what is the probability she chooses the English CD...
*August 12, 2010 by kirk*

**Discrete Math**

There are 150 students taking Discrete Mathematics II, Calculus II, and Physics I courses. Of these 51 are taking Discrete Mathematics II, 111 are taking Calculus II, and 63 are taking Physics I. There are 41 taking Discrete Mathematics II and Calculus II, 32 students taking ...
*April 6, 2014 by Anonymous*

**mathematics**

A book seller purchased 117 books out of which 45 books of mathematics and 72 books of physics.Each book has same size .Mathematics and Physics books are to be packed in bundles and each bundle must contain same no. of books.Find the least number of bundles which can be made ...
*September 23, 2013 by help(in much need)!!!!!!!!!!!!!!!!!!!!*

**Maths**

in a school,7/10 of the pupils like mathematics. half of those who like mathematics are girls.if there are 240 pupils in the school,how many girls like mathematics
*April 25, 2012 by Daisy*

**finite math**

What is the present value of an ordinary annuity which has payments of $1100 per year for 19 years at 5% compounded annually.
*April 2, 2013 by Debra *

**8th grade math**

Henry claims that a line segment has a finite number of points because it has two endpoints. How do you respond?
*September 11, 2014 by Enis*

**AED**

Post your response to the following: The introduction of calculators and computers into the mathematics classroom has made it faster and easier for students to complete difficult problems. Technology should not, however, replace the students understanding of basic ...
*November 19, 2008 by troyer0269*

**EED 364**

1) Observe an elementary mathematics lesson. Write an essay of 1,500-1,750 words that addresses the following issues and summarizes your observations: a) What is the importance of having standards in mathematics? How do standards improve mathematics instruction? Compare and ...
*October 28, 2011 by Kimberly*

**mathematics**

1. In an examination conducted for 80 candidates, those who passed in mathematics were 17 more than those who passed science and 9 failed both subjects.14 candidates passed both subjects. I. Draw a venn diagram to illustrate this information II. How many students passed in ...
*October 30, 2011 by partey*

**women mathematician**

any idea of what mabel schmeiser barnes' field of mathematics was? any information on her parents and if she had siblings? major contributions to world of mathematics? i could only find one good site but i couldn't find anything that helped with my questions...
*March 11, 2009 by Ty*

**Finite Math**

Find (a) the final amounts and (b) the total interest earned on the original investment. 1. $4500 is invested at 7.5% compounded annually for 6 years.
*February 17, 2013 by Matt*

**Finite Math**

Determine the amount of the ordinary annuities at the end of the given periods. $200 deposited monthly at 1% per month for 20 months.
*February 18, 2013 by Matt*

**math**

A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
*May 6, 2012 by jennifer*

**Math**

A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
*June 21, 2012 by Jameson*

**Math**

A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.
*June 21, 2012 by Jameson*

**math**

A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at college. Give the 95% confidence interval.
*June 5, 2014 by Erma*

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