# Posts by David

Total # Posts: 2,261

**algebra 2**

The amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes for an amount of money ...

**Geometry**

12 and 15

**Math**

This is a question on a study guide for a test tomorrow. How do you do it? Please help According to the Federal Highway Administration, teenage males drive an average of 10,718 miles each year. Assume the mileage totals are normally distributed with a standard deviation of ...

**physics**

where would the image of a 4.0 cm tall object that is 12 cm in front of a flat mirror be located?

**math**

Julie bought 3/4 yard of fabric. She used 1/3 of it. How much fabric does she have left?

**Economics**

In a period of inflation, does the exchange of goods and services speed up or slow down? Thanks

**life orientation**

Answer

**Math**

With no weight the spring will be 18 in. Every 1-Lb stretches the spring 1/2 In. The spring moves 6 inches (from 20 to 26 inches) with an incremental 12 Lbs (4Lb to 16LB)

**Maths**

Say the probability he'll pass English is Prob(E) = 0.6. The probability he'll pass in both English and Maths is Prob(E&M) = 0.54. Provided the probability that he'll pass English is independent of the probability that he'll pass Maths (and note that's an ...

**maths**

You're looking for an integer (I assume) between 11 and 19 inclusive: that comes from the first statement. So try multiplying each of 11, 12, 13, 14, 15, 16, 17, 18 and 19 by 6, and look at the final digit. If it's an 8, that's a possible solution. Of the above, 13...

**math**

I'm going to rewrite the question to make sure I've understood it. In 4a and 4c there are the same number of girls. There are 56 pupils in total in the two classes. If 1/3 of the people in 4a and 1/4 of the people in 4c are girls, find the total number of girls in both...

**Math/Statistics**

Though strictly speaking the question ought to read "What is the probability of a random dart that hits the dartboard landing inside the bullseye?". A truly "random" dart could easily miss - and that would make the probability uncalculatable without extra ...

**math**

Assuming this is a calculus question and not a graphical one, you need to solve a simple differential equation in d: h = 2d - (d^2)/5, so dh/dd = 2 - 2d/5 = 0 at the maximum, so d=5. But at d=5, h= 2*5 - (5^2)/5 = 10 - 5 = 5. So the maximum height is 5 feet. Not very high, is ...

**Chemistry**

1How would each of the following affect the accuracy of the calculated neutralizing power of antaid (too high, too low, no effect) explain a)The actacid tablet was not cut exactly in half before weighing b)The solution mixture of reacted antacid and excess HCL spattered out of...

**phi**

Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence

**physics**

What is the acceleration due to gravity 100km above the surface of the Earth? (Average radius of Earth is, Re=6.4x10^3km)

**physics**

A ball is thown at 20m/s at an angle of 30 degrees from the horizontal level. What maximum height can the ball reach?

**physics**

a cetrifical force of 98N is acted upon a 5kg. ciculating object. If the object is moving at a radius of 1.2m ,what speed is needed to keep it in the cicular motion?

**physics**

At what speed should an object be projected to reach the maximum range of 200 m ?

**algebra**

1st Step Have each each scenario equal each other 120 + .40x=230+.35x x-2200 For all amounts over 2200 plan be will save her money

**algebra 1**

suppose triangle ABC has right angle C. find the measures of the other sides to the nearest whole number. measurement of angle A is 40 BC is 5

**accounting**

Shott Farm Supplies Corporation purchased 800 shares of General Motors stock at $50 per share and paid a brokerage fee of $1,200. Two months later, the shares were sold for $53 per share. The brokerage fee on the sale was $1,300.

**Chemistry**

.303m

**Maths and Physics**

Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 (10 marks). Kind Regards

**architecture**

the best way to describe classical Greek art would (paragraph) example would include the statue

**Math**

A rooming house has three rooms that contains four beds, three beds and two beds respectively. In how many ways can nine quests be assigned to these rooms? The book says it is 1260. I have no idea how they got this. I know it requires combinations. Could someone please explain...

**Math**

Without graphing, identify the quadrant in which the point (x, y) lies if x > 0 and y < 0.

**Math**

You are designing a rectangular playground. On your scale drawing, the vertices of the rectangle are (10, –9), (10, –3), and (13, –9). What are the coodinates of the fourth vertex?

**algebra**

How can I justify each step 1/2x =15 2(1/2)x = 2*15 x =30

**math**

The lengths of what are considered "1 inch bolts are found to be normally distrubted with a mean of 1.001 inches and a standard deviation of 0.002 inches. If a bolt measures more than 2 standard deviations away from the mean, it is rejected for not meeting factory ...

**science**

Table salt has a solubility of 36 g of salt in 100 g of water at 40°C. If 15 g of the salt are added to 50 g of water at the same temperature, is the resulting solution saturated or unsaturated? Explain your answer.

**math 4th grade**

one thousand forty four dollars

**Math**

What will the graph look like for the equation y= 2x^2 + 3

**Chemistry**

In a decomposition reaction 2KCLO3 -> 2KCL + 3O2, what volume of O2 gas at STP would be produced from 3.66g of KCLO3 Thank You very much for your help :)

**chemistry**

In the reaction N2 + 3H2 -> 2NH3, how many grams of NH3 gas would be formed when H2 gas, having a volume of 11.2 liters at STP, reacts with excess N2 gas? Completly confused, thank you very much for your help :)

**Algebra**

Hello. I am trying to figure out how to find the number of solutions in the following problem: (x + 8) (x + 8) = 0

**History**

What did the 1968 march at the Chicago Democratic Convention prove? Was there any good that came out of this situation for all of those involved, our country and the war in Vietnam? Did Arfrican Americans and other minorities achieved anything benefical from 1968?. During 1968...

**History**

What defense strategy was developed by the late 1940s because the US lacked sufficient troops to confront the Soviet Army in Eastern Europe? I think that the answer might be= B) nuclear deterrence, is this correct? A) atomic detente B) nuclear deterrence C) a combined NATO ...

**history**

I think the correct answer is B) nuclear deterrence, is this correct?

**history**

What defense strategy was developed by the late 1940s because the US lacked sufficient troops to confront the Soviet Army in Eastern Europe? A) atomic detente B) nuclear deterrence C) a combined NATO army D) French and German rearmament

**History**

What were the protestors so unhappy about? The protestors opposition to the Vietnam War dominated the protests, students also protested for civil liberties, against racism, for feminism, and the beginnings of the ecological movement can be traced to the protests against ...

**History**

In 1968 Democratic Convention in Chicago. What were the protestors so unhappy about?

**Finance**

Suppose $500 is invested monthly at 4% compounded monthly, for 10 years, then $600 is invested monthly at 6% compounded monthly, for 10 years.

**History**

My instructor requested that I write a reflective prep paper for my final essay. Will I use words like (I, me, myself or personally) when referring to myself in a reflective essay? What words do I start the thesis statment with in a reflective essay? My instructor wants me to ...

**History**

Does any know how the American public felt about what happen to the Japanese American internment issues. I know how the American Japanese felt however I cannot find any express opinions of the American public.

**Algebra**

Well, I'm trying to find two different points by changing the x value since I need to graph these points and then reflect it. I hope this helps you a little.

**Algebra**

Hello. I am trying to solve quadratic functions but I'm having difficulty understanding. Here is my work so far... y=3x^2 + 12x + 9 12/6 = -2 = y 3(-2)^2 + 12(-2) + 9 = -3 x=0 y=9 (0,9) Would I just plug in 1 and 2 for x and then reflect it while i'm graphing? So, if I...

**history**

I read up on most of the information concerning this subject, and I still need help. Japanese Internment When President Roosevelt issued Executive Order 9066 on February 19, 1942, he authorized the evacuation of Japanese-Americans from the West Coast. Why was this done??? Was ...

**history**

The automobile facilitated the idea of worshipping at the altar of materialism. The development of the automobile helped to change the American culture by allowing individuals another avenue to show wealth and treasure it, two critical elements of the New Era. Could someone ...

**History**

Can some please help me with this question? 7. Which statement is most accurate regarding the miracle of war production? Here are my choices War production depended on the conversion of peacetime industries, so overall economic output grew very little (A) Both corporate ...

**Physics I**

I have this vector that is confusing me I know what I need to do but the components of these vectors are confusing me. Problem: You are standing at point with coor dinates (1m, -1m, -2m) another erson is at r(t)=(8m)i - (3m/s^3) t^3 j + (4m/s^2) t^2 k Find distance between you...

**History**

Thank you.

**History**

My question was pretaining to the culture of the 1920's. I need to the question answered in what ways did the automobile change American culture during the 1920's? Henry Ford came out with the Model T and how was he able to succeed to a degree far beyond any other ...

**history**

My question was pretaining to the culture of the 1920's. I need to the question answered in what ways did the automobile change American culture during the 1920's? Henry Ford came out with the Model T and how was he able to succeed to a degree far beyond any other ...

**History**

Thank you

**History**

The results of the 1912 election prove that Americans were ready for change and reform across the board. Each candidate offered their own view on how changes should be implemented and which issues needed change, ultimately the voters showed they wanted an end to political ...

**History**

The results of the 1912 election prove that Americans were ready for change and reform across the board. Each candidate offered their own view on how changes should be implemented and which issues needed change, ultimately the voters showed they wanted an end to political ...

**math**

In a movie theater, Theater A has 30 seats in the first row. Each next row has 4 more seats in it than the previous row has. 1) How many seats are in the 4th row? 2) Is there a row with exactly 60 seats in it? Explain. 3) Theater B has 40 seats in the first row and each row ...

**History**

Is this true or false. If it is true were can I find the web site to verify the answer. I am having a difficult time interputating what the statement is trying imply. Please could you help me. Thank you. American colonies were born out mass slaughter of native Indians and ...

**History**

Since the late 1800's and the 1912 eara how has the progression reform movement effected how things are presently?

**History**

I would like to thank you both for your informative answers to my question. I will be sure to check out the article on the web site that you have provided as well. Now I am no longer confused as to what the statement really meant. Thanks again!

**History**

Can someone please explain what this statment means when it worded like this? (I tried to figure out what it means, put I keep getting confuse). That the 1912 election registered, and inspired, fundamental changes in American politics suggests the historical significance of ...

**History**

You are correct, I have not recently heard of anyone who states that the working class should be the ruling class. I wish that were true, maybe then, the high unemployment situation that we are presently dealing with would improve! Thannk you

**History**

The election of 1912 Eugene Debs espoused a view of labor equality and socialism. He argued for a transformation that would make “the working class the ruling class”.*** That seemed to have been the position of Lenin, Stalin, and other Marxist leaders. Is it possible...

**history**

The Progressive Era (1890-1920) What does the outcome tell us about the way americans of the time felt about progressive reform movements?

**english**

Do all essays require a thesis

**Economics**

List the various causes of inflation and determine if they are an injection or a leakage. Demand-pull theory: This is a leakage. If all sectors in the economy try to buy more than the economy can produce, people may start to rely on imports. Therefore, demand-pull is a leakage...

**History**

Can someone please help me with these questions? Thanks What issues did each of the four 1912 presidential candidate espouse? ... Woodrow Wilson, William Howard Taft, Theodore Roosevelt, Eugene Debs

**History**

In the 1912 presidental campaign what issues did William Howard Taft espouse on? Thanks

**History**

Can someone please help me with these four questions? My first is to discuss a little about American Imperialism in the Nineteenth Century. My second question, why was this policy adopted? My third question, how was it rationalized? My fourth question is to discuss the major ...

**History**

I have this one question that is giving me some trouble trying too figure out. Could one please help me with this one question. Before 1802, most immigrants came from ____________; after 1802, most immigrants came from ______________. My choices are: The European continent; ...

**chemistry**

In simple terms, a standard solution is a solution with a concentration that you know, example is a container labelled 1M, it means the content is a standard solution. An indicator is used to find when the acid and base are completely neutralized in titration

**ENGL**

I am working backwards I think Question 3 is 3) A is dependent and B is dependent 2) A Dependent B Independent 1) A Independent B Dependent

**ENGL**

These three questions I am having difficulty in solving. Can you help me here. Question 1 - a) Whenever children in the United States turn on the tv, B) they are more likely to encounter violence on the screen. A is an independent clause. A is a dependent clause B is an ...

**Economics (SraJMcGin)**

Given the larger population runs in The States than in Canada, the costs are spread over more units. In fact in The States a cost over run of 10% could be dumped in Canada. Given the law of demand, what would happen to the Canadian company? If you worked for that company, what...

**biology**

If you inject carbon nanotubes into the body, can we produce antibodies against it? some ideas: - my answer is yes and no... the carbon nanotubes are too large for the t-cell to destroy it; therefore, they won't have an affect. -plus our whole body is made of carbon; ...

**Economics**

Given the larger population runs in The States than in Canada, the costs are spread over more units. In fact in The States a cost over run of 10% could be dumped in Canada. Given the law of demand, what would happen to the Canadian company? If you worked for that company, what...

**Economics**

Given the larger population runs in The States than in Canada, the costs are spread over more units. In fact in The States a cost over run of 10% could be dumped in Canada. Given the law of demand, what would happen to the Canadian company? If you worked for that company, what...

**History**

Hi Sue, The freedom that happen in the late 1800's.

**History**

Black southerners sought respect, land, and the rights of citizenship. What did freedom mean?

**Economics**

Are these examples of elastic/inelastic supply products correct? Plane tickets: A plane ticket is an example of inelastic supply. If the price of a ticket changes, the airline cannot quickly increase the supply of seats. It takes a long time to make more planes to provide ...

**Physics**

In an experiment conducted by Young using sodium light with λ=589 nm, the slits are 1 μm wide. You notice that every fourth fringes missing. a) What is the slit separation? d = na = 4(1 μm) = 4 μm. b) How many fringes appear on the screen? I'm not sure ...

**finance**

Adams Enterprises’ noncallable bonds currently sell for $1,120. They have a 15- year maturity, an annual coupon of $85, and a par value of $1,000. What is their yield to maturity?

**Math**

What's the function? x= 2, y=14 x=10, y=54 x=8, y=44 x=?, y=34 x=?, y=104 x=?, y=31 I thought it was multiply by 5, add 4 but that won't work for the last one where y=31. Help!

**Math**

Thank you very much!

**Math**

Could someone please help me to identify what type of misrepresentation or misuse have demonstrated by the statement below. Here are choices only one of them connects with this statement: Which one? “…male children born to women who smoke during pregnancy run a risk ...

**Math**

Thank you so much

**Math**

If a student's percentile rank in a class of 400 students is 87, how do I find the student's class rank.

**managerial economics**

draw me an indifference curve where someone does not value integrity very much compared to income

**Economics**

If all the wealth in the world were distributed evenly, how much money would each person have? How would this affect the everyday lives of westerners? Thanks for your help. Any references would be appreciated.

**Economics**

If all the wealth in the world were distributed evenly, how much money would each person have? How would this affect the everyday lives of westerners? Thanks for your help. Any references would be appreciated.

**Physics**

Doubling the voltage across a parallel plate capacitor does not double which of the following? a. the charge b. the electric field between the plates c. the energy stored d. the electric force on the plates e. both a and b is the answer A if not then how do i do this problem

**physics**

How much potential energy does a 60kg skater have before she starts her ride, 12m above the ground?

**Social Studies**

Explain the similarities and differences in the way the US and Canada gained independence

**physics**

-6.93*10^-5 N/C

**english**

i guess its great to watchh:) this movie gives us great messages! thanksss

**english**

should the film "Speak" be studied in english 9?Why? "Speak"by Laurie Halse Anderson

**math**

26 1/4- 5 3/10

**Math**

The area of a rectangular playground is 2,700 ft2. The length is 3 times the width.What are the dimensions of the playground?

**chemistry**

Fish-liver oil is a good source of Vitamin A. When 0.1232 g of fish liver oil is dissolved in 500. mL of solvent, an absorbance of 0.724 is recorded. When 0.00167 g of Vitamin A is dissolved in 250. mL of solvent, an absorbance of 1.018 is recorded. Calculate the mass percent ...