Friday

October 9, 2015
Total # Posts: 951

**Physics help ASAP please**

A boat needs to travel straight across a river. The current is 10 km/hr. The boat can travel at 16 km/hr. What is the velocity of the boat relative to the bank?
*September 26, 2011*

**Physics help ASAP please**

An airplane is flying south at 500 km/hr and is being blown by a crosswind of 75 km/hr east. What is the resultant velocity of the airplane?
*September 26, 2011*

**literature **

how does the role of the supernatural differ in the stories of Echo and Narcissus and Deadalus and Icarus?
*September 26, 2011*

**Physics**

You carry a 20 n box 5 m horizontally across a room. The work you do is? Is 4 J correct?
*September 21, 2011*

**Statistics**

The lifetime of television produced by the Hishobi Company are normally distributed with a mean of 75 months and a standard deviation of 8 months. If the manufacture wants to have to replace only 1% of its televisions, what should its warranty be?
*September 16, 2011*

**trig**

find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3
*September 14, 2011*

**MATH**

what are the rules to multiplication with negative numbers and positive numbers?
*September 14, 2011*

**chemistry**

how many molecules of O2 may be produced from 50g of KClO3? the formula is 2KClO3->2KCl+3O3
*September 13, 2011*

**chemistry**

how many grams of O2 may be produced from 50g of KClO3?
*September 13, 2011*

**Whatzit puzzle**

That is the way the puzzle is written.
*September 9, 2011*

**Whatzit puzzle**

more it it thani
*September 9, 2011*

**Chemistry**

Nuclei with the same number of neutrons but different mass numbers are called isotones. Write the symbols of four isotones of 236Th
*September 7, 2011*

**College Math**

Ed Moura has $29,000 invested in stocks paying 5%. How much additional money should he invest in certificates of deposit paying 2% so that the average return on the two investments is 3%?
*September 1, 2011*

**STATISTICS**

WHAT PERCENTAGE OF AFRICAN AMERICAN ARE FEMALE
*August 24, 2011*

**math**

a pet shop owner had an equal number of hamster and puppies for sale. the hamster were put equally int o 4 cages and the puppies were put equally into 12 cages. at the end of the day, he had sold 3 cages of hamsters and 6 cages of puppies. if the total number of animals sold ...
*August 24, 2011*

**math**

an aquarium had 50 goldfish and angel fish. After 2/5 of the goldfish and 1/2 the angel were sold, there were 27 goldfish and angel fish left. What was the ratio of the goldfish to the angel fish after the sale?
*August 24, 2011*

**math**

Tommy, Shawn, and ricky had a total of 192 picture cards. In a game, Tommy lost some picture cards to Shawn and Shawn's picture cards doubled. Shawn lost some picture cards to ricky and ricky's picture cards doubled. Then they each had the same number of picture cards ...
*August 24, 2011*

**Literacy 2**

You need to recheck these bc at least 4 are incorrect. I just took this exam.
*August 23, 2011*

**Math: Inequalities**

A doughnut shop at a shopping mall sells a dozen doughnuts for $2.95. Beyond the fixed costs of $150 per day, it costs $1.45 for enough materials and labor to produce each dozen doughnuts. If the daily profit varies between $50 and $200, between what levels (in dozens) do the ...
*August 9, 2011*

**ECE**

At which grade level is it most appropriate for children to group by more than one attribute? A. Primary B. Kindergarten C.Four years old D.Preschool
*August 8, 2011*

**trigonometry**

A ladder 6.4 meters long leans agant the wall of an apartment house forming an angle of 53%20% with the ground. How high up the wall does it reach?
*August 7, 2011*

**Math**

Anyone help me?? :) How to solve: 5x2 = -(19/2x-1) and 2x2 + 45/2x - 18 = 0 With full solutions? Thank you :)
*July 25, 2011*

**social studies**

How do the similar cultural and economic environment of the united states and canada help to keep people and goods passing easily from one country to the other?
*July 23, 2011*

**world history **

following world war 2 what factors led to Japan's economic success? a)the adoption of eastern economic philosophy that emphasized supply and demand economy. b)the concentration on the production of high-quality agricultural products. c)efficient, modern factories,adapted ...
*July 19, 2011*

**world history**

which of the following was an effect of militarism in europe in the late 1800s? nations made political and military alliances. b)strong governments developed. c)nations made economic alliances. d)political tension between nations was reduced.
*July 19, 2011*

**solving rational equations**

4-a-5/a+5=a^2-15/a+5
*July 9, 2011*

**Math**

Thanks that is what I thought but there was no time given
*July 5, 2011*

**Math**

I bought a stock at $16.50 and sold it at $19. What was the rate of change?
*July 5, 2011*

**poetry**

What is performative aspect of a poem
*June 27, 2011*

**composition and communication1**

The WritePointSM report begins with the following statement: “Welcome to WritePointSM, the automated review system that recognizes errors most commonly made by university students in academic essays.”
*June 27, 2011*

**Physics**

A 0.200-m uniform bar has a mass of 0.750 kg and is released from rest in the vertical position, as the drawing indicates. The spring is initially unstrained and has a spring constant of k = 25.0 N/m. Find the tangential speed with which end A strikes the horizontal surface.
*June 9, 2011*

**MATH**

Interest = principal times rate times time. Simple interest multiple all together 31.5.
*June 4, 2011*

**Records Management**

I am having a hard time understanding how to arrange these numbers and I have to turn the assignment in tomorrow. Any help would be appreciated. 1. arrange the numbers in terminal digit order. 2. arrange the numbers in middle digit order. 3. arrange the numbers in consecutive ...
*June 4, 2011*

**businesscommunication**

I took a speech class last quarter and the focus was on informative speeches and preparing outlines. 1. Introduction - the topic and main point of the message. Can be done with a thesis statement. An overview of what will be talked about. (five to eight sentences for the ...
*June 4, 2011*

**9th grade integrated algebra**

13.2
*May 22, 2011*

**statistics**

describe how you would design an experiment to help the protagonist make an informed decision. Your description should include (but not be limited to) how subjects are chosen for the experiment, how treatments will be administered, what variable(s) you will be measuring, and ...
*May 9, 2011*

**statistics**

Your friend David works for an online magazine and calls you late one night. He says “Dude(tte), can you help me out? I’m putting together an article and the submission deadline is in an hour. I want to quote an opinion poll result my publisher gave me, but they didn...
*May 9, 2011*

**statistics**

2. Your friend Janefs landscaping company charges two hours of labor time for the planting of a medium-sized tree. To make sure she is not undercharging or overcharging for this service, she asks for your help. To start, you take an SRS of 10 planting times from last ...
*May 9, 2011*

**statistics**

After years of data collection by college students, it has been determined that the distribution of course grades in Ms. Green’s Statistic II class follows a normal distribution with a mean of 62 and a standard deviation of 14. (a) A student will pass Ms. Green’s ...
*May 9, 2011*

**Calculus**

Evaluate the integral. HINT [See Example 3.] (Remember to use ln |u| where appropriate.) (4/x - 1/4x^5 + 1/2x^7)dx
*May 3, 2011*

**math**

If you are in Florida, 7th grade is the first grade where you are REQUIRED to have a multifunction calculator, according to the state curriculum. It is important to note that there are parts of the FCAT where you cannot use a calculator so basic skills need to continue to be ...
*April 28, 2011*

**business**

why can businesses started by young people face a lower risk of failure than adult businesses?
*April 24, 2011*

**consumer mathematics**

A $500 sofa is reduced 15%. What percentage would the sale price have to increase to be at the original price?
*April 24, 2011*

**math**

Look at this trinomial 32a^4 + 18a^3 - 12a Write the polynomial as the product of the GCF of all its terms and a polynomial PLEase explain thanks
*April 18, 2011*

**Chemistry**

Besides the fact that it would reduce pollution, why would a hydrogen fuel based car be a better choice than a regular gasoline fosil fuel vehicle?
*April 13, 2011*

**science**

How many pounds of pressure does a 25 pound baby weigh in a head on collision when the car is traveling at 25 miles per hour. (and hits a stationary object)
*April 12, 2011*

**MATH**

IF A DOOR MEASURES 42" WIDE BY 84" TALL CAN A TABLE MEASURING 96" IN DIAMETER FIT THROUGH?
*April 7, 2011*

**Discrete Mathematics**

Step 1 Set a=1, b=1, c=2,and k=0 Step 2 while k < n (a) Replace c with a+b (b) Replace a with b (c) Replace k with k+1 endwhile Step 3 Print b
*March 30, 2011*

**C++**

For each of the following problems, write a program or a program segment that performs the specified action.Each problem refers to class Polygon (Fig. L 11.15). This class contains a dynamically allocated array of x-coordinates and a dynamically allocated array of y-...
*March 29, 2011*

**social studies**

I need a poem about the battle of lexington and concord.
*March 28, 2011*

**algebra**

how to: graph , substitution, and elimination y=2x+5 y=2x-8
*March 27, 2011*

**chemistry**

What quantity of solid compound? 300ml of 4% (w/v) ammonium chloride.
*March 23, 2011*

**human resources**

My book sure doesn't, that's why I'm searching the internet looking for help.
*March 22, 2011*

**USSO**

Please explain why the British Colonists in North America sought separation from the British Empire in1776. Explain not only the events that led up to the Revolution but the ideas that the colonists used to interpret these events and how they ultimately justified the War of ...
*March 16, 2011*

**math**

The president of the country PTA organization makes copies of membership lists for all of the elementary schools. Sometimes she may need only few copies but at other times she needs thousands of copies. TIP copy Service charges 3 ½ cents per copy plus a 42.00 set up ...
*March 14, 2011*

**math**

[][][][][] [] [] [] it looks like this
*March 14, 2011*

**math**

i dnt get ti ...this is so cionfusing
*March 14, 2011*

**math z score**

find the z score corrsponding to a score of X = 100 the mean = 80 and the standard devation = 5
*March 8, 2011*

**statistics**

find the z score corresponding to a score of X = 100 for a mean = 80 and standard devation of 10
*March 8, 2011*

**math**

In a department store, there were a certain number of red T-shirts, blue T-shirts, and yellow T-shirts. 3/7 of the T-shirts were red, 1/3 of them were blue and the rest were yellow. If there were 20 more red T-shirts than blue T-shirts, how many yellow T-shirts were there?
*March 7, 2011*

**geology**

Given a scale of 1:24,000: A. What is the ground distance in feet represented by three inches on the map? 72000in 6000ft B. What is the ground distance in meters represented by 5 cm on the map? 120meters C. How about the ground distance in kilometers represented by 5 cm on the...
*March 6, 2011*

**Statistics**

In a single toss of a fair die, what is the probability of obtaining an even number divisible by three?
*March 2, 2011*

**binominals **

multiply using FOIL - First Outer Inner Last. y^2 + 3y + 7y + 21. Now combine like terms to get y^2 + 10y + 21
*February 23, 2011*

**Math**

A 3 foot long pole leans against a wall. The bottom is 5 feet from the wall. How much farther should the bottom be pulled away from the wall so that the top moves the same amount down the wall?
*February 23, 2011*

**stats**

a die is rolled 10 times. find the chance of.... a)not getting 10 sixes b)all the rolls showing 5 spots or less I'm not sure how to do either, but for b, I think is it (5/6)^10 because each time there is a chance that the number will be 5 or less? Please help. thank you!
*February 22, 2011*

**science**

Does it take more effort to get up and walk a rolling chair accross the room than it takes to sit and scoot it accross the room Karen
*February 16, 2011*

**Physics**

Galileo threw a large rock upward from a tower balcony at an angle of 25.0o above the horizontal with an initial speed of 15 m/s. If the rock hits the ground 3.0 s later, how high above ground was the rock when it left Galileo’s hand?
*February 15, 2011*

**Science**

How was their small size helpful to the mammals of the Mesozoic?
*February 7, 2011*

**math300**

Run the simulation using n = 30 and N = 10 for a uniform, a bell-shaped, and a skewed distribution. Identify the mean of the sampling distribution of sample means for each distribution. Evaluate if the results are what you expected for each distribution. Run the simulation ...
*February 6, 2011*

**english**

Which words/phrase in this sentence is misplaced? Having been discovered, Rover looked up at his owner with puppy-dog eyes. a. with puppy-dog eyes b. been discovered c. his owner d. rover looked up I am torn between (a.) and (c.). Since the answer (c.) says "his owner&...
*January 28, 2011*

**english**

talking about the right to vote
*January 25, 2011*

**english**

i need help on describing women's suffrage
*January 25, 2011*

**algebra**

perform the indicated operation 75/80=15/16
*January 11, 2011*

**math**

7/12m + 2 is less but equal to 16 SOLVE!!!
*January 10, 2011*

**Calculus**

y=0^2+1/0^2+9 y = 1/9 y intecept
*January 10, 2011*

**English**

I was to write 2 paragraphs on how interest rates affect our purchasing decisions and underline the topic sentence of each one. I would like to know if my prargraphs are okay and if I chose the TS correctly. Since I dont know how to underline here the topic sentences I chose ...
*January 9, 2011*

**Math**

Is the numbers 5,12,26 a arithmetric or geometric or neither
*January 5, 2011*

**business**

#28 The following is a partial ANOVA table. Sum of Mean Source Squares df Square F Treatment 2 Error 20 Total 500 11
*January 5, 2011*

**arithmetic**

what does 2.75+.003+.158=
*December 22, 2010*

**physics**

A 2kg ball attached to the ceilling with a string is released and swings back and forth. Assume there is no air resistance. At the bottom of the path the lowest point the velocity is 4m/s. What is the velocity when it returns to the lowest point
*December 20, 2010*

**English**

Thank you so much! I have a really hard time with these!!!
*December 17, 2010*

**English**

Adjectives/Adverbs I need to underline the adjectives and bold the adverbs. Just need help if I did it correctly. Since this doesnst let me do underline and bold I will make the adjectives in () and the adverbs in ** Thanks I have had both *good* and *bad* experiences with ...
*December 17, 2010*

**math**

Please help! Car traveling at 35 MPH traveling 900'...how long to stop? Car traveling at 90 MPH traveling 900'...what is the difference on impact????
*December 17, 2010*

**Managerial Economics**

You are considering setting up a software development business. To set up the enterprise you will need to buy equipment costing $100,000. This equipment will be depreciated straight line over 5 years to a zero salvage value. Its market value at the end of the 5 years will be ...
*December 14, 2010*

**Math**

If a monkey falls from a 94 foot tree, how long does it take him to hit the ground.
*December 3, 2010*

**Chemistry**

A, C, E, and F are true
*December 1, 2010*

**physics**

What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s
*November 30, 2010*

**math**

how do you convert fractions to decimals.
*November 22, 2010*

**grammar**

Thanks!
*November 21, 2010*

**grammar**

Wondering if I have correctly identified each verb in the following sentences: The role of education plays (simple present) a major role in successful financial planning. My Personal Finance class is helping (progressive present) me to learn how to budget successfully. I have ...
*November 21, 2010*

**Algebra 2/Math**

Can you check these thanks. Solve the system by substitution or elimination. 2x+y=1 3x-y=14 Answer: (3,5) x-3y= -12 2x + 11y= -7 Answer: (39,17) 4x+2y=8 12x+6y=24 Answer: no solution 4x-2y=5 2x-y= -1 Answer: no solution 4a+3b =6 8a-b= -9 Answer: no solution
*November 20, 2010*

**Physics**

A ceiling fan is rotating at 0.70 rev/s. When turned off, it slows uniformly to a stop in 2.9 s. (a) How many revolutions does it make in this time? (b)Using the result from part (a), find the number of revolutions the fan must make for its speed to decrease from 0.7 rev/s to ...
*November 16, 2010*

**algebra 2**

Find the rule for the quadratic. The h =24ft. The pumpkin retuerns to the ground after 6 seconds. Hint: wat is the height when it hits the ground? Use h +vt-16t^2
*November 16, 2010*

**physics**

a 2 liter bottle rocket has a thrust phase on .25 sec. The rocket goes straight up, reaches its apex, then plunges straight down. Total time is 8 sec. How do I calculate height, velocity and acceleration???
*November 15, 2010*

**history**

6. Which of the following accurately characterizes a difference in the way the House and Senate operate? (Points : 1) The House is more formal than the Senate. The Senate leadership is more powerful than the House leadership. Authority in the Senate is concentrated while ...
*November 11, 2010*

**7th grade Math**

how are the comparison methods juan uses similar to the method you use to compare the sizes and shapes of similar figures?
*November 10, 2010*

**Geometry**

what is the supplement of B if B=(3x-16)?
*November 6, 2010*

**Math**

Make your own equation. 1. A number is 6 times another number. The sum of the two numbers is 56. @. Donna has twice as many coins as Cathy. When Donna gives Cathy 2 coins, they each have the same number. How many coins do they each have? Let the number of coins that Cathy has ...
*November 5, 2010*

**ALGEBRA**

yes that is correct then on the graph it would be a filled in circle at -6/7 going to the right.
*November 4, 2010*