Sunday

February 14, 2016
Total # Posts: 1,055

**Physics **

A hiker, who weighs 990 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 3550 N, and rests on two concrete supports, one at each end. He stops one-fifth of the way along the bridge. What is the magnitude of the force that a...
*February 6, 2012*

**math**

...A woman has a total of $9,000 to invest. She invests part of the money in an account that pays 5% per year and the rest in an account that pays 12% per year. If the interest earned in the first year is $730, how much did she invest in each account?
*February 5, 2012*

**algebra**

The third angle in an isosceles triangle is 56° more than twice as large as each of the two base angles. Find the measure of each angle.
*February 5, 2012*

**intermediate algebra**

A triangle is such that the largest angle is 11 times the smallest angle. The third angle is 27° less than the largest angle. Find the measure of each angle. (Enter solutions from smallest to largest.)
*February 5, 2012*

**physics**

A train 400 m long is moving on a straight track with a speed of 80.1 km/h. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.9 km/h. Assuming constant acceleration, determine how long the train blocked the crossing. ...
*February 3, 2012*

**physics**

A train 400 m long is moving on a straight track with a speed of 80.1 km/h. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.9 km/h. Assuming constant acceleration, determine how long the train blocked the crossing. ...
*February 3, 2012*

**physics**

A car starts from rest and travels for 6.0 s with a uniform acceleration of +2.4 m/s2. The driver then applies the brakes, causing a uniform acceleration of −1.0 m/s2. If the brakes are applied for 3.0 s, determine each of the following. (a) How fast is the car going at ...
*February 3, 2012*

**Physics**

There is no given figure, you have to draw it from the question.
*January 31, 2012*

**Physics**

The figure shows the treatment of fractures of the humerus shaft with a cast of the upper arm bent by 100 to 110 degrees at the elbow joint, and an attached traction device. The traction device keeps the upper arm under tension to lower the risk of fracture dislocation due to ...
*January 31, 2012*

**physics**

on an exam i had to day this was the question:A painter of mass 50.0 kg stands on a platform of mass 40.0 kg and pulls on two ropes which hang over pulleys, as shown. He pulls each rope with a force of 400.0 N. Assuming a coordinate system where +y is up, calculate the y-...
*January 28, 2012*

**Algebra 1 Honors**

A diver is working 10 feet below the surface of the water. The gap between the water and the deck of his support barge is 1/8 of the total legnth of the air hose , and 3/4 of the total legnth remains on the reel. What is the maximum working depth without a change of equiptment...
*January 26, 2012*

**Business**

Firm A and firm B have debt-total asset ratios of 35% and 30% and ROA of 12% and 11%, respectively. Which firm has a greater ROE? I think that it is firm B since it has more equity financing its assets.
*January 24, 2012*

**math**

Solve 2³ -1 • (3 + 6) + 3
*January 23, 2012*

**math**

a jar of jelly beans contains 33 red, 52 white, 70 yellow ad 85 orange. To the nearest whole percent, what percent of the total jelly beans are orange?
*January 22, 2012*

**integrated algebra**

oh, okay, thank you!
*January 13, 2012*

**integrated algebra**

do i always have to mention the ors
*January 13, 2012*

**integrated algebra**

before looking at your answer i found the answer to be 0 too but like this: x^2-3x=0 x^2-3x+0=0 (x-0)(x+0)=0 0^2-3(0)=0 was my way right
*January 13, 2012*

**integrated algebra**

how can you solve x^2 - 3x = 0 i was using a formula as: x^2-7x+10=0 (x-5)(x+2)= 0 x-5=0 x+5 +5 x=5 I was following this formula but got stumped on this question please help.
*January 13, 2012*

**celebrity fame**

thanks alot
*January 10, 2012*

**celebrity fame**

so....... can u plz help me????????????
*January 10, 2012*

**celebrity fame**

it's not gossip!!!!!!!!!! it's for my research report about taylor lautner!!! its for my english grade
*January 10, 2012*

**celebrity fame**

taylor lautner and lily collins from the movie abduction?????
*January 10, 2012*

**celebrity fame**

are taylor lautner and lily collins going out????
*January 10, 2012*

**literacy**

who publishes Pediatric Nursing?
*January 9, 2012*

**history**

thank you
*January 6, 2012*

**history **

who came up with the idea of the school bus?
*January 6, 2012*

**u.s history**

who is the president of the united states?
*December 21, 2011*

**Solving trig functions! urgent please help!**

1.2sinxtanx + tanx-2sinx-1=0 2.6tan^2x-4sin^2x=1 Both functions is for 0<x<2pi thank you!
*December 20, 2011*

**Physics**

A circular hatch in the hull of a submarine has a radius of 40.0 cm. The submarine is 850.0 m under water. If atmospheric pressure above the ocean is 1.01 x 105 Pa and the air pressure inside the submarine is 1.31x 105 Pa, what net force is exerted on the hatch? (ρsw = ...
*December 19, 2011*

**Math**

Express 120:80 as a ratio. Express 60:560 as a fraction.
*December 6, 2011*

**Math - Data please help!**

1) A lotery has 1,000,000 tickets and draws 100 tickets to award prizes. How many tickets would you expect to have to purchase before you would win a prize? 2) Lesley claims she can roll triples with three dice in fewer than 20 rolls. a)what is the expected number of rolls ...
*December 6, 2011*

**French**

What are common types of music in Alsace? Do you know of any webstes with this info?
*December 3, 2011*

**French**

I am doing a report about Les Arts in the USA and in Alsace, France. Like music, painting, sculptures etc. Do you guys know of any website with information about the common types of paintings in Alsace or music played?? thanks
*December 3, 2011*

**arithmetic**

find the whole to 565 tires 12.4%what numbers of tires.
*December 1, 2011*

**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*

**math - please help!!**

thank you!
*November 19, 2011*

**math - please help!!**

A squash match is won when one player wins three games. This situation is often referred to as winning the "best-three-out-of-five" Barbara has a slight edge in winning each game with the odds in favour of 5 to 4 a) what is the probability that maria will win in ...
*November 19, 2011*

**data management**

If rhys is late for his finite mathenetucs class, ad the probability that he is on time is 3/4. however if he is on time, he is liale 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*

**science**

How long does a pathogen live in the body?
*November 12, 2011*

**math**

Thank you! I said the mean is 5 years more than the median.
*November 10, 2011*

**math**

The answer in the book says the mean is 8 years less than the median. Please explain.
*November 10, 2011*

**math**

336/12 = 28 right?
*November 10, 2011*

**math**

The mean is 28 and the median is 23???
*November 10, 2011*

**math**

In her art class, Ms. Walter has 12 students whose ages are listed below: 19, 20, 20, 20, 21, 22, 24, 24, 25, 25, 56, 60 She calculated the mean and the median of their ages. What is the relationship between these two values?
*November 10, 2011*

**Math**

Random variable X is normally distributed with mean 10 and standard deviation 2. Compute the following probabilities. a. Pr(X<10) b. Pr(X<11.04) I don't know where to start.
*November 10, 2011*

**math**

At 5:00 a.m. the temperature in Orlando, Florida was already 80 degrees F. By 3:00 p.m. the temperature had risen to 97 degrees F. What is the difference in the temperatures?
*November 3, 2011*

**Math (logic and problem solving)**

a rubber ball is dropped froma building that is 16 meters high. Each time the ball bounces, it bounces up half as high as the previous bounce. It is caught by Romer, the wonder dog, when it bounces 1 meter high. How many meters did the ball travel before it was caught?
*October 30, 2011*

**Science**

So the answer would be C (30 sec), right?
*October 26, 2011*

**Science**

I have to choose one option and also was among the A and B, but what makes me hesitate is that the A says "heat the salt crystals" instead "heat the water". And I'm thinking then the option B. You think after what I have observed. Sorry to bother much ...
*October 25, 2011*

**Science**

What do you think is the most reasonable answer???A or B?
*October 25, 2011*

**Science**

Please somebody help me. I need the answer today. HELP
*October 25, 2011*

**Science**

David has to dissolve salt crystals in the water. What would be the best thing to do to help the crystals dissolve quickly? A)heat the salt crystals B)crush the salt crystals C)cool the water in the tank D)use the largest salt crystals
*October 25, 2011*

**health**

Thinking in terms of the administrator and third-party payer perspectives, answer the following: What do you feel are the biggest weaknesses of the health care plan, and why?
*October 22, 2011*

**Algebra **

Thank you
*October 20, 2011*

**Algebra **

I'm working midpoints, distance, circles and standard form and general form. I have some questions with my answers to the first two-I'm stuck on #3 1. What is the distance between points (0,0) and (-3,5) My answer: sqrt34 2.What is distance between (3,1) and (10,8) My ...
*October 20, 2011*

**Chemistry**

You measure one edge of a cube using a meter stick marked in centimeters. Unfortunately, the edge is longer than 1 m. You mark the 1-m point on the cube edge with a pen and then, using a 15-cm ruler marked in millimeters, measure the remaining distance to be 1.40cm. (a) What ...
*October 16, 2011*

**microeconomics**

There is not enough information on these questions. I tried surfing the net but still not finding what I am looking for.
*October 9, 2011*

**microeconomics**

Can someone please help me with answering these questions? I need to know the answers to study for a test. 1.What private goods generate external benefits? 2.What is the economic logic of the median-voter rule? 3.Are there different ways to reduce pollution or mitigate its ...
*October 9, 2011*

**Geometry**

The area of the larger of two similar polygons is 315 squared centimeters. If the scale factor of their perimeters is 2:3 what is the area of the smaller polygon?
*October 1, 2011*

**Microeconomics**

Applying the concepts. 1.What is the break-even price? 2.How do entry costs affect the number of firms in the market? 3.Does volentary pricing work? 4.What type of consumers pay relatively high prices? 5.What are the effects of market entry? 6.What does it take to enter a ...
*September 25, 2011*

**4th grade math**

i am a 4-digit whole number. my digits decrease by 2 from the thousands place to the ones place. each of my digits is an even number. what number am I?
*September 21, 2011*

**math**

Just because there isn't an equal sign doesn't mean you cant solve it. Bobpursley the answer to (3k+4.2)+8.6 is 15.8!See just try it.
*September 19, 2011*

**Nursing**

nursing interventions for pt unable to feed self
*September 18, 2011*

**Nursing**

What are meds for disease processes related to nutrition?
*September 18, 2011*

**Math**

Factor - 12x^2+10x+1
*September 16, 2011*

**College Algebra**

The relation is a function containing two ordered pairs. Reversing the components in each ordered pair results in a relation that is not a function. A) {(0, 2), (0, 3)} B) {(2, 3), (3, 2)} C) {(3, 1), (4, 1)} D) {(4, 5), (2, 3)}
*September 11, 2011*

**nursing**

How do the physiologic changes of pregnancy affect drug administration?
*August 28, 2011*

**nursing**

What are the 4 goals of drug therapy.
*August 28, 2011*

**nursing**

name 5 functions of pharmacodynamics
*August 28, 2011*

**nursing**

What is the first pass effect? What routes are affected by this,which routes are not?
*August 28, 2011*

**English**

HUH? Are you asking me to replace my verb with an adjective?
*August 18, 2011*

**English**

He fell victim to the status quo.
*August 18, 2011*

**English**

What word can I use to replace "fall victim to." Give me some examples please. I'm stumped.
*August 18, 2011*

**statistics**

a. A statistics practitioner randomly sampled 100 observations from a population with a standard deviation of 5 and found that x is 10. Estimate the population mean with 90% confidence.
*August 15, 2011*

**statistics**

a. A random sample of 25 was drawn from a normal distribution with a standard deviation of 5. The sample mean is 80. Determine the 95% confidence interval estimate of the population mean.
*August 15, 2011*

**algebra**

1. What is the equation of the line that passes through (4,-1) and (-2,3)? 2. What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?
*August 6, 2011*

**Chemistry**

A middle-aged man has been diagnosed as being at high-risk of developing Coronary Artery Disease. •State the chemical composition of the sterol that is present in high levels in most people who belong to the high-risk group. •Distinguish between the ‘good' ...
*August 5, 2011*

**math**

A pile of 108 identical books has a mass of 30 kg. Find (a)the mass of 150 books and (b)the number of books that has a mass of 20 kg.
*August 2, 2011*

**Math**

Can u pls pls pls solve this algebraic expression?? I cant solve it although I tried many possible ways and solutions :/ 10+1/3[4k-(18+7k)]
*July 31, 2011*

**Computer Science**

Consider the following application files: /JavaCS1/src/guiprojectcity2/DisplayWindow.java import java.awt.*; import javax.swing.*; public class DisplayWindow extends JFrame{ private Container c; public DisplayWindow(){ super("Display"); c = this.getContentPane(); } ...
*July 29, 2011*

**algebra**

The weight of a rock sample is measured to be 2.5 pounds. What is the percent of error in the measurement?
*July 28, 2011*

**algebra**

If four times a certain number increased by 6 is equal to 94, what is the number? If x represents the number, then which of the following equations could be used to solve the problem? 4x + 6 = 94 or 4(x + 6) = 94
*July 28, 2011*

**algebra**

A clerk was asked to change a $10 bill. She returned 9 more dimes than nickels and twenty-one more quarters than dimes. How many coins of each did she return? Solve using the V.E.S.T. method.
*July 20, 2011*

**Java Programming **

Don't know how to start.. Can anyone help me? For this program you are to create a two class application - a driver and a principal class - that reads in text interactively from the keyboard, and then reports on two aspects of the entered text. First it should print a ...
*July 13, 2011*

**algebra**

Which of the following expressions has 3 terms? 8x + y - z xyz y^3 + 1
*July 10, 2011*

**algebra**

Thanks Ms. Sue!
*July 10, 2011*

**algebra**

evaluate: 7x + [x - (5 - x)]
*July 10, 2011*

**algebra**

evaluate: 7x + [x + (5 - x)]
*July 10, 2011*

**Writing**

Can you post one of your writings of your own?
*July 3, 2011*

**Writing**

Any suggestions for writing topics?
*July 3, 2011*

**writing**

what else is on the rise then?
*July 3, 2011*

**writing**

Have you ever wondered what the world would be like in the future? According to events taking place now in the world, our future will change drastically. In 50 years, our society, environment, and schools will be greatly affected. Our society will change in 50 years. The ...
*July 3, 2011*

**math**

19. A high school soccer team has two goalies. Goalie A makes the save 80% of the time. Goalie B makes the save 75% of the time. If goalie A plays 35 of the games and goalie B plays 25 of the games then: a) Determine the probability that a save has been made by either goalie A...
*June 25, 2011*

**algebra**

for the equation 6x+7y-6=0 what is the ordered pair
*June 25, 2011*

**calculus**

find the surface area obtained by revolving about the line y =1 the region enclosed by the curve x= 3/5y5/3 -3/4y1/3 on [0,1]
*June 13, 2011*

**Chemistry **

3 I- (aq) +H3AsO4 (aq) + 2 H+ = I3- (aq) + H3AsO3 (aq) + H2O (l) is found to be first order with respect to each of the reactants. write the rate law. what is the over all order?
*June 5, 2011*

**geometry**

A pyramid has a volume of 24 and a base area of 12. What is the length of the altitude of the pyramid?
*May 25, 2011*

**2nd Grade Math**

multiply 1/4 by 7/1
*May 23, 2011*

**geometry**

find the measure of angle 3 if angle 2 is 5x-8 amd angle 4 is 3x-10
*May 23, 2011*