Thursday

April 24, 2014

April 24, 2014

Number of results: 350

**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
*Tuesday, April 10, 2007 at 4:22pm by sara*

**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
*Saturday, September 25, 2010 at 9:43pm by kary*

**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
*Tuesday, April 10, 2007 at 4:12pm by sara*

**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...
*Tuesday, March 27, 2007 at 8:20pm by Anonymous*

**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.
*Saturday, May 10, 2008 at 8:36pm by Rumer*

**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? ...
*Thursday, April 30, 2009 at 3:05pm by charlie*

**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 ...
*Monday, March 7, 2011 at 3:39pm 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 ...
*Monday, March 7, 2011 at 4:51pm by Roberto*

**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 ...
*Sunday, December 6, 2009 at 4:17pm by Amanda*

**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, ...
*Saturday, October 16, 2010 at 9:51pm by liz*

**smallest algebra**

Let F be a family of subsets of a set X such that empty set is the element of F. A subset A of X belongs to F1 if and only if either A is a subset of F or complement of A is the subset of F. A subset B of X belongs to F2 if and only if B is a finite intersection of sets in F1...
*Thursday, January 15, 2009 at 3:46pm by sxxx123456*

**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 ...
*Monday, April 16, 2012 at 8:59pm by bobby*

**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...
*Friday, November 29, 2013 at 4:19pm by Swayne*

**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 ...
*Monday, March 5, 2007 at 6:31pm by jas20*

**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
*Saturday, May 7, 2011 at 12:20pm by Dee*

**finite math**

does 4/2x + 3 define y as a function of x?
*Wednesday, November 19, 2008 at 9:07pm by dessy*

** finite math**

Maximize z= 5x + 5y Subject to 3x + 2y < 6 -x + 2y < 4 x,y >0
*Saturday, April 7, 2012 at 11:14pm by tinkle*

**Finite Math**

True or false. [A (B C)]c = (A B)c (A C)c
*Saturday, August 3, 2013 at 10:41am by keith*

**math**

What is a finite, infinite and an empty number?
*Tuesday, September 25, 2007 at 9:26pm by Pat*

**finite math**

find the x and y-intercepts of the function y=x+32
*Sunday, July 6, 2008 at 3:14pm by freedom*

**finite math**

find the y-intercept of the function y=2x-8
*Sunday, July 6, 2008 at 3:13pm 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
*Thursday, March 5, 2009 at 2:06am by Princess*

**Finite Math**

Determine the 5th term of (2x+3y)^12
*Sunday, May 6, 2012 at 12:37pm by MV*

**finite math**

find he inverse of matrix A and verify A= 1 -1 2 2 -3 -5 -1 3 5
*Saturday, June 27, 2009 at 10:04am by crystal*

**Finite Math**

1. Find the inverse of the following matrix: [ 1 0 1 ] [ 2 -2 -1 ] [ 3 0 0 ]
*Thursday, July 23, 2009 at 6:01pm by Mike*

**Finite Math**

Solve the matrix equation AX =B for X using A=[2-3] [1 5] B=[4 ] [2 ]
*Thursday, July 23, 2009 at 9:27pm by Mike*

**finite mathmatics**

elimination method 5x + 6y = -75x - 3y = 146
*Saturday, December 11, 2010 at 4:45pm by Luke*

**Algebra 3**

find the sum of each finite arithmetic series 8+9+10+...+15
*Wednesday, April 3, 2013 at 7:49pm by Erica*

**Finite Math**

True or false. P (n, r) = r! C (n, r). explain why please, thanks
*Saturday, August 3, 2013 at 10:29am by Keith*

**Physics**

Recall that for a finite rod of length L and total charge Q, the electric field for a point located a perpendicular distance r from the middle of the rod has a magnitude given by: Consider the limit of large distances, where a finite charged rod is observed at a distance that ...
*Thursday, February 11, 2010 at 8:29pm by Julia*

**Finite Math**

Find the slope of a line through the points (11,-2) and the origin.
*Thursday, July 23, 2009 at 11:00pm by Mike*

**Calculus (pleas help!)**

For what values of k is lim x -> INF coshkx/sin2x finite?
*Friday, March 18, 2011 at 11:05pm by Abi*

**Finite Math**

Pivot the system about the element in row 2, column 1. [3 3| 2] [9 4| 1]
*Thursday, September 15, 2011 at 10:25pm by Dee*

**Finite Math**

Sinking fund which the goal of $100,000 to reach with n=22, i= 0. 03
*Tuesday, February 7, 2012 at 11:46pm by Ashley*

**Calc**

Find the sum of the terms of the finite geometric sequence 1, -2, 4, -8, ...,-8192.
*Friday, August 17, 2012 at 12:02pm by Timofey*

**college finite math**

Find the marginal average cost function: C(x)=10-e^-x
*Sunday, November 18, 2012 at 6:24pm by Jenny*

**Finite Math**

How long will it take $800 to earn $18 at 6% simple interest?
*Sunday, February 17, 2013 at 5:05pm by Matt*

**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
*Friday, June 26, 2009 at 8:11pm by crystal*

**Finite Math **

A coin is tossed 10 times. What is the probability that at least 8 heads appear?
*Monday, March 19, 2012 at 10:56am 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)
*Monday, July 23, 2012 at 1:11am by Preet*

**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)
*Thursday, July 23, 2009 at 6:07pm by Mike*

**finite**

Assume that the coin is flipped 10 times. What is the probability that both heads and tails occur?
*Sunday, February 19, 2012 at 9:42pm by victoria*

**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)
*Monday, July 23, 2012 at 1:09am 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?
*Tuesday, February 16, 2010 at 2:46pm by alicia *

**Finite**

Assume that the coin is weighted so that Pr[H] = [ 1/11], and that it is flipped 9 times. The random variable X is defined as the number of heads in the 9 flips. What is E[X]?
*Monday, October 8, 2012 at 11:01pm by Sam*

**Finite! please help**

an unfair coin with pr[tails]= .15 is flipped 6 times. what is the probability of getting AT LEAST 1 tail in the 6 flips?
*Thursday, October 18, 2012 at 8:42am by Anonymous*

**infential statistics**

Random of size 2 are taken from a finite population which consist of the measurement 6,7,8,9,10 and 11 A: show that mean and that its S.D is equal to 0.493
*Wednesday, May 11, 2011 at 12:39pm by Ayodeji*

**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.
*Tuesday, April 2, 2013 at 10:33pm by Debra *

**Precalculus**

The sphereflake shown (not shown for question) is a computergenerated fractal that was created by Eric Haines. The radius of the large sphere is 1. Attached to the large sphere are nine spheres of radius . Attached to each of the smaller spheres are nine spheres of radius . ...
*Sunday, November 7, 2010 at 4:28pm by Tony*

**Algebra**

I need some help! Determine whether infinite geometric series has a finite sum. If so, find the limiting value. 112+56+28+....
*Tuesday, April 16, 2013 at 11:35pm by Kris*

**Algebra**

I need some help! Determine whether infinite geometric series has a finite sum. If so, find the limiting value. 112+56+28+....
*Tuesday, April 16, 2013 at 11:35pm by Kris*

**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.
*Sunday, February 17, 2013 at 7:23pm 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.
*Monday, February 18, 2013 at 9:35pm by Matt*

**Math Finite**

2. How much should be deposited now at 9% compounded semiannually to make possible withdrawals of $13,000 every 6 months for the next 12 years
*Friday, March 18, 2011 at 6:02pm by Phan*

**finite math**

SYGYZY BEEKEEPER RAZZMATAZZ LILOYPILLY QUINQUENNIUN WHIPPERSNAPPER NONANNOUNCEMENT STRAWBERRYRASPBERRY How many ways indistinhuishable arrangements can be made of the above letters?
*Wednesday, August 8, 2012 at 5:38pm by jon*

**college Finite**

Find the probability of at least 3 successes and at least 2 failures. N(trials)=10 and p=3/10
*Sunday, October 10, 2010 at 5:59pm by Fiona*

**Math Finite**

How many years will it take for $12,000 to grow to $15,000 at 5.75% compounded monthly?
*Wednesday, December 8, 2010 at 12:41am by Ericka*

**algebra 2**

A. consider the finite arithmetic series 10+13+16+...+31. how many terms are in it? Explain. B. evaluate the series
*Tuesday, March 22, 2011 at 10:50pm by max*

**Finite MAth**

Assume that the set S has 7 elements. How many subsets of S have at most 3 elements
*Thursday, January 26, 2012 at 7:57pm by Bryan*

**Finite Math**

Determine which is the better investment. 6.8% compounded semiannually or 6.6% compounded quarterly?
*Monday, February 18, 2013 at 4:58pm by Matt*

**finite**

Assume that n = 14, and p = [ 2/7]. Find the probability of at least 3 successes and at least 2 failures.
*Wednesday, March 28, 2012 at 10:02pm by victoria*

**Finite Math**

If A = (aij ) is a matrix of size 2x3, and if aij = 2i- 3j for all i and j write down A.
*Sunday, March 21, 2010 at 4:41am by Bryce*

**Finite Math**

If A = (aij ) is a matrix of size 2x3, and if aij = 2i- 3j for all i and j write down A.
*Sunday, March 21, 2010 at 5:29am by Bryce*

**Finite**

Assume that the producer has 8 skits and 5 commercials available. In how many ways can the producer create a television show?
*Sunday, January 24, 2010 at 11:19pm by Megan*

**FInite Math**

-.30x+.20y +.25z =0 .20x -.40y +.05z =0 .10x +.20y -.30z =0 x=? y=? z=?
*Monday, February 20, 2012 at 9:06pm by Exhausted*

**FInite Math**

-.30x+.20y +.25z =0 .20x -.40y +.05z =0 .10x +.20y -.30z =0 x=? y=? z=?
*Monday, February 20, 2012 at 9:29pm by Exhausted*

**finite math **

for the previous ? it as to be set up in five steps I just can't figure out how to set it up to get the answers
*Saturday, September 22, 2012 at 4:01pm by cheryl*

**Math/Algebra**

If the first term of a finite geometric sequence is .4 and its ratio is .3 what is the sum of the first 5 terms?
*Monday, October 29, 2012 at 11:11am by Libby*

**english grammar**

underline the phrases in the following sentence and circle the non- finite verb,if any. Given a chance, Susan would like to go on a trek in the Himalayas.
*Tuesday, April 14, 2009 at 2:39am by rita*

**Finite Math**

Assume that you randomly select 8 cards from a deck of 52. What is the probability that all of the cards selected are hearts?
*Wednesday, February 15, 2012 at 9:59pm by Rachel*

**Finite Math**

Kathy borrowed $800 at 6% interest. The amount of interest paid was $144. What was the length of the loan?
*Sunday, February 17, 2013 at 4:24pm by Matt*

**finite math**

what is the cost to install new carpet in an 15' by 21' room if the price of the carpet including installation is $14.50 a square yard?
*Wednesday, March 14, 2012 at 11:40pm by rita*

**Finite Math**

A pair of dice is cast. What is the probability that the sum of the numbers landing upwards is 8 if it is known that the two numbers are different?
*Monday, March 19, 2012 at 10:50am by Anonymous*

**Business math/Finite**

How long to the nearest year, will it take an investment to double if it is continuously compounded at 4% per year
*Wednesday, November 28, 2012 at 3:43pm by Karla*

**Math Finite**

A two card hand is dealt from a standard deck. What is the probability of drawing at least one face card?
*Thursday, December 9, 2010 at 12:30am by Ericka*

**Finite Math**

An NBA player makes a successful free-throw 80% of the time. Find the probability that he is successful exactly 4 times in 5 attempts?
*Wednesday, October 17, 2012 at 10:45pm by Cindy*

**College Finite Math**

Involving a true-false test. Assume that 8 questions are answered by guessing. What is the probability of at least 6 correct answers? I know this a Burnoulli Trial problem and that N=8 and p=.5 and q=.5 I just don't know where to go from there.
*Thursday, April 9, 2009 at 11:41pm by Taymor*

**Finite Math**

What interest rate, compounded monthly, would you need to be paid in order to grow a $2000 investment into $3500 over a five year period?
*Tuesday, December 7, 2010 at 11:50pm by Ericka*

**Finite Math**

What interest rate, compounded weekly, would you need to be paid in order to grow an $8000 investment into $12,000 over a ten year period?
*Tuesday, December 7, 2010 at 11:57pm by Ericka*

**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
*Tuesday, October 23, 2012 at 7:33pm by Anonymous*

**Finite Math**

The purchases made by customers at a convenience store are normally distributed, with a mean of $5.50 and a standard deviation of $3.50. What is the probability that a randomly chosen customer makes a purchase between $2.00 and $9.00?
*Sunday, March 9, 2014 at 3:47pm by Tanisha *

**finite math**

three cards are randomly drawn without replacement from a standard deck of 52 cards. What is the probability of drawing an ace on the third draw?
*Tuesday, November 13, 2012 at 6:00pm by ryan*

**finite math**

three cards are randomly drawn without replacement from a standard deck of 52 cards. What is the probability of drawing an ace on the third draw?
*Tuesday, November 13, 2012 at 6:05pm by ryan*

**Finite Math**

A bank deposit paying simple interest at the rate of 8% per year grew to a sum of $1200 in 10 months. Find the principal. (Round your answer to the nearest cent.)
*Saturday, May 7, 2011 at 4:05pm by Dee*

**Finite Math**

Find the effective rate corresponding to the given nominal rate. (Round your answer to two decimal places.) 11%/year compounded semiannually
*Friday, May 6, 2011 at 5:04pm by Dee*

**finite math**

suppose that 3 digits are selected at random from the set S={1,2,3,4,5,6} and are arranged in random order. Find the probability that the resulting 3-digit number is less than 300.
*Tuesday, September 4, 2012 at 7:51pm by allen*

**finite math**

Okay,so: Assume that there are 8 unfilled roles: 3 male and 5 female. There are 5 men and 6 women, including Sally, auditioning for a part in the play. How many of these casts include Sally?
*Wednesday, September 5, 2012 at 12:13am by Tyler*

**Finite Math**

The amount (future value) of an ordinary annuity is given. Find the periodic payments. A = $2500, and the annuity earns 6.5% compounded annually for 4 years.
*Monday, February 18, 2013 at 9:38pm by Matt*

**Finite Math**

The amount (future value) of an ordinary annuity is given. Find the periodic payments. A = $14,500, and the annuity earns 6% compounded monthly for 10 years.
*Monday, February 18, 2013 at 11:23pm by Matt*

**finite math**

when doing minimization problems and there is more than one negative constant in the far right column is there a method for choosing the proper one to go with or is the process entirely arbitraru
*Sunday, March 4, 2007 at 3:50pm by chris*

**finite**

In how many ways can the letters in Saskatchewan be rearranged and still maintain the order in which the vowels appear? My guess: 12!/2!3!(4!/3!) because the vowels aaea can only have four total arrangements.
*Wednesday, March 14, 2007 at 12:56pm by R*

**FINITE!!!**

Melissa Borrows $1000 on May 8 at 18.5% simple interest. She pays $500 on July 17 and $400 on September 29. What is her balance on October 31 by the merchant's rule? by the United States rule?
*Tuesday, December 13, 2011 at 9:19pm by HELP >:(*

**Algebra**

Two questions I need help with. Find the indicated partial sum using the information given. 1. a3=4/9, a7=9/64, S6 Determine wheater the infinite geometric series has a finite sum 2. 6+ 3+ 3/2 + 3/4 +.... 3. -49 + (-7) + (- 1/7) +...
*Monday, April 8, 2013 at 10:38pm by Becca*

**Finite Math**

A person invests $2000 annually in an IRA. At the end of 6 years, the amount in the fund is $14000. What annual nominal compounding rate has this fund earned?
*Thursday, January 16, 2014 at 5:18pm by Lynn*

**finite math**

Given n(A')=23, n(B')=16, and n((A [intersect] B) U (AUB)'))= 24, find (A [intersect] B) I apologize but intersect was the best way I found to represent the upside down U symbol.
*Sunday, September 9, 2012 at 9:23am by allen*

**Finite Math**

Assume that 3 digits are selected at random from the set {1,3,5,6,7,9} and are arranged in random order. What is the probability that the resulting 3-digit number is less than 700? I know the sample space is P(6,3) but that is all I know. Help!
*Saturday, February 28, 2009 at 11:22pm by Willow*

**Finite Math**

Discuss the differences between the echelon method and the gauss-jordan method for solving matrix problems? What are the pros and cons of using a calculator or computer to do these calculations?
*Sunday, December 13, 2009 at 1:02am by Jennifer*

**finite math**

Find the present value of an ordinary annuity of $600 payments each made quarterly over 5 years and earning interest at 4% per year compounded quarterly.
*Monday, September 9, 2013 at 2:01pm by brittny*

**Finite Math**

Find the effective rate of interest corresponding to a nominal rate of 6%/year compounded annually, semiannually, quarterly, and monthly. (Round your answers to two decimal places.)
*Friday, May 6, 2011 at 5:09pm by Dee*

**Finite Math**

Find the value(s) of the function, subject to the system of inequalities. Find the maximum and minimum of P = 10x - 16y subject to: 0 x 5, 0 y 8, 4x + 5y 30, and 4x + 3y 20 50, 0 -96, 0 -67.5, -96 50, -96
*Tuesday, November 4, 2008 at 12:56pm by Mark*