Therese

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.

17 years ago

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.

16 years ago

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

16 years ago

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 =...

15 years ago

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%?

14 years ago

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!!!!!

14 years ago

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.

14 years ago

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 o...

14 years ago

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.

14 years ago

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.)

12 years ago

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?

12 years ago

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 a...

12 years ago

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...

12 years ago

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?

12 years ago

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 j...

12 years ago

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...

12 years ago

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?

12 years ago

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?

12 years ago

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. the...

12 years ago

Is it appropriate to call the numbered lock combination in our doors and drawers a "combination?" Explain.

12 years ago

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?

12 years ago

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

12 years ago

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

12 years ago

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?

12 years ago

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.

12 years ago

There are 40 slots in a roulette wheel,19 are red, 19 are black, and 2 are green. if you place a $1 bet on red and win, you get $2( your original point $1 and an additional $1) returned. what is the expected value of a $1.00 bet on red.

9 years ago

1. Roger B. Taney 2. I agree it's B

14 years ago

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 t...

12 years ago

its 9 mathematician instead of 5. Sorry again.

12 years ago

Thanks much. I will do just that.

12 years ago

Thanks much :)

12 years ago

It should be 14

11 years ago

Barbara Fredrickson suggests that, based on the pace of cellular renewal in the body, it tends to take around ________ to change a habit or make a lifestyle change.

9 years ago

Don’ Know

7 years ago