Tuesday
October 21, 2014

Posts by Therese


Total # Posts: 45

Chemistry I
If 30.0 mL of 0.2 M nitric acid and 30.0 mL of 0.25 M solution of sodium hydroxide are mixed, what is the molarity of sodium nitrate? Assume that total volume of the solution after mixing is equal 60.0 mL.
March 14, 2013

Math Statistics
1. How many ways can you possibly have if you bet on a single number if there are 38 possible number of choices you have? 2. How many winning combinations can you have when you have 12 numbers to choose from out of 38?
March 3, 2013

Math
In the roulette game, what is the probability of an outcome of: Any odd number Any green number Any number that is red or green Any number that is red and even
March 1, 2013

Math
What are the odds in winning in a roulette if I bet on an exact number chosen from 37 numbers in all?
March 1, 2013

Statistics
Out of 4 architects, 6 engineers and 9n electricians, how many ways can a group of 6 people be formed to attend a forum if there are at least 3 electricians?
February 25, 2013

Statistics
Is it appropriate to call the numbered lock combination in our doors and drawers a "combination?" Explain.
February 25, 2013

Math
Out of 4 architects, 6 engineers and 9n electricians, how many ways can a group of 6 people be formed to attend a forum if there are at least 3 electricians?
February 25, 2013

Math
Is it appropriate to call the numbered lock combination in our doors and drawers a "combination?" Explain.
February 25, 2013

Math
From 5 statisticians and 6 economists, a committee consisting of 3 statisticians and 2 economists is to be formed. How many different committees can be formed if: a. two particular statisticians must be in the committee? b. one particular economist cannot be in the committee?
February 22, 2013

Math
Thanks much :)
February 22, 2013

Math
Out of 4 architects, 6 engineers and 9 electricians, how many ways can a group of 6 people be formed to attend a forum if: a. there is an equal number of architects, engineers and electricians b. two particular engineers cannot be in the committee? c. there are at least 3 ...
February 22, 2013

Math
If you have one $50 bill, one $20 bill, one $10 bill and one $100 bill, how many possible sums of money consisting of three bills each, can be formed?
February 22, 2013

Math
In how many ways can a group of 10 people be divided into: a. two groups consisting of 7 and 3 people? b. three groups consisting of 4, 3, and 2 people?
February 22, 2013

Math
From 5 statisticians and 6 economists, a committee consisting of 3 statisticians and 2 economists is to be formed. How many different committees can be formed if: a. two particular statisticians must be in the committee? b. one particular economist cannot be in the committee?
February 22, 2013

Math
A box of jelly bears contains 52 jelly bears which 19 are white, 10 are brown, 7 are pink, 3 are purple, 5 are yellow, 2 are orange, and 6 are green. In how many ways can you select 9 pieces of candy at random from the box without replacement if 3 white jelly bears are selected?
February 21, 2013

Math
In selecting an ace, king, queen, and jack from an ordinary deck of 52 cards, how many ways can you choose if the cards must be of different suits? the same suit?
February 21, 2013

Math
A college freshman must take a science course, a humanities course, an elective course, and a mathematics course for the first term of the school year. If he or she may select any of the six science courses, any of the four humanities courses, any of the five elective courses...
February 21, 2013

Math
Thanks much. I will do just that.
February 18, 2013

Math
its 9 mathematician instead of 5. Sorry again.
February 18, 2013

Math
ooops sorry. This is a more clear question. How many different committee with 5 members can be formed if you have to choose from 5 scientists, 5 mathematicians? a. all are scientists? b. exactly 3 mathematicians? c. 2 scientists are not allowed to be in the committee? d. 1 of ...
February 18, 2013

Math
Given 5 members, 5 scientists and 9 mathematicians. How many committees can be formed if ..... a. all are scientists? b. exactly 3 mathematicians? c. 2 scientists are not allowed to be in the committee? d. 1 of the scientists and 1 of the mathematicians are not allowed to be ...
February 18, 2013

Math
Eight sprinters from different universities are in the final match. In how many ways can the sprinters receive a gold, a silver, or a bronze medal?
January 18, 2013

Math
A committee will elect a president, a secretary, and a treasurer. If the committee consists of 35 members, how many possible outcomes for the three positions can occur? (Note that no member can be elected in two positions.)
January 18, 2013

Statistics
Eight sprinters from different universities are in the final match. In how many ways can the sprinters receive a gold, a silver, or a bronze medal?
January 18, 2013

Statistics
A committee will elect a president, a secretary, and a treasurer. If the committee consists of 35 members, how many possible outcomes for the three positions can occur? (Note that no member can be elected in two positions.)
January 18, 2013

math
if greg eats 3 red jelly beans and 6 yellow ones how many yellow were there originally? the ratio is 4:5
September 19, 2012

Math,Ratio
It should be 14
December 28, 2011

medical records
A primary-care physician and her partner, who have just opened their own practice, employ you as a medical assistant. You have been asked by one of the physicians to research information and recommend a quality-control procedure for completing chart audits for the practice. ...
February 7, 2011

English
Thank you!
February 1, 2011

economics
Ninety-one-day Treasury bills carry an investment return (IR) of 6.25 percent. What is their purchase price? What is their discount rate (DR)? What are the formulas and how do you figure the answer? Thank you so very much.
October 29, 2010

economics
An automobile company, NISSAN, has a temporary cash surplus and lends its funds overnight through a repurchase agreement to a government securities dealer, earning $55,600 in interest income when the RP loan rate stood at 5.70 percent. What was the size of the loan that NISSAN...
October 29, 2010

economics
Expected cash flow from security $1000. What is the present value of expected cash flow (15% discount rate)? Please explain how to figure it. Thank you so much.
October 29, 2010

economics
economics - bobpursley, Sunday, October 24, 2010 at 12:06pm present value= 10,000/(1+i)+10000/(1+i)^2 I do not understand the answer!!!!!
October 24, 2010

economics
What is the present value of $10,000 paid out at the beginning of each of the next two years using an interest rate of 10%?
October 24, 2010

Finance
What is the present value of $10,000 paid out at the beginning of each of the next two years using an interest rate of 10%?
October 23, 2010

chemistry
How many moles of FeCl3.6H2O are required to make 10.00 mL of 1.50 M stock solution?
October 10, 2010

Chemistry
Thank you, I really appreciate
October 10, 2010

chemistry
What is the molarity of 20.00 mL of a stock solution made with 12.003 g of potassium oxalate monohydrate? NOTE: Give your answer to 3 significant figures and do not report units with your response.
October 10, 2010

social studies
1. Roger B. Taney 2. I agree it's B
October 5, 2010

math
What geometrical shape is a top hat?
August 26, 2010

Math
Help please... some diff equation prbolems... 1.) Transform 2xdy - y(x+1)dx + 6y^3dx = 0 into a Bernoulli Equation. 2.) The equation of the tangent line of the one-family of curve x^2 + y^2 = 25 at P(4, 3) is_______ 3.) The complete solution of 2x^3 dy = y (y^2 + 3x^2) ...
December 14, 2009

Algebra
Could you please explain how to do 3/2(z+5)-1/4(z+24)=0, step-by-step? Thank you!!!
September 30, 2009

Algebra
I had to write the standard form of the equation for the circle consisting of the endpoints (0,0), (6,8). I got (x-3)^2+(y-4)^2=15. But my book said the fifteen should be a twenty five. How would they have gotten 25? Thank you.
September 30, 2009

7th grade math
-35 divided by 5 minus 8 times 3 open parenthesis 5 plus 2 times 7 what is the answer by following the pemdas
December 10, 2008

Algebra;distance problem
2. An express and local train leave Gray’s Lake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local, and arrives 1 hour ahead of it. Find the speed of each train.
July 27, 2008

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