Sunday

November 29, 2015
Total # Posts: 88,454

**College Algerbra**

A student must leave for campus in 10 minutes or he will be late for class. Unfortunately, he is snowed in. He can shovel the driveway in 18 minutes, and his brother claims to be able to do it in 12 minutes. If they shovel together, how long will it take to clear the driveway...
*November 2, 2015*

**expressions**

three less than twice a number is the same as the number increased by eight
*November 2, 2015*

**College Algerbra**

I=N/P+c, solve for P
*November 2, 2015*

**College Algerbra**

P=N/1+i is used to determine what amount of principle P should be invested for one year at simple interest rate i in order to have N dollars after a year. Solve the formula for i.
*November 2, 2015*

**Chemistry (Help)**

For the chemical reaction, sodium hydroxide + copper (II) chloride = "robin's egg blue" precipitate, do the following: write the balanced molecular, balanced total ionic, and balanced net ionic equations; determine the Limiting Reactant (LR) for each chemical ...
*November 2, 2015*

**Chemistry (Check and Help)**

Upon the combustion of propane, C3H8, 150. g of propane was reacted with excess oxygen gas. A. Determine the limiting reactant if the water is the product of interest. B. Determine the number of grams of water produced. C. Calculate the number of grams of water obtained in the...
*November 2, 2015*

**Chemistry (Check and Help)**

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. 8.75 g of mercury (II) nitrate solution is mixed with 9.83 g sodium iodide solution (ppt). Hg(NO3)2(aq) + 2NaI(aq) --> ...
*November 2, 2015*

**Chemistry (Check and Help)**

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. 6.95 moles of glucose C6H12O6(s) is combusted with 7.54 moles of O2 gas (both products!) C6H12O6(s) + 6O2(g) --> 6CO2(g...
*November 2, 2015*

**Chemistry (Check)**

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. Calcium nitrate is decomposed with heat to give calcium nitrite and oxygen gas. Start with 15.99g of calcium nitrate. Ca(NO3...
*November 2, 2015*

**Chemistry (I tried to do more)**

I tried something for this. could you please check? Limiting reagent is Cr because O2 is unlimited. For every 4 moles of Cr, there's 3 moles of O2. 38.5molesCr (3molesO2 / 4molesCr) = 28.9 moles O2. Molar Mass of O2 is 32 so 1moleO2 = 32gO2. 28.9molesO2 (32gO2 / 1moleO2...
*November 2, 2015*

**Chemistry**

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount of grams of excess reagent. Chromium metal is heated with oxygen to give chromium (III) oxide. Start with 38.5 moles chromium metal and unlimited oxygen...
*November 2, 2015*

**business**

Suppose you are a financial manager stationed in a foreign country and your boss at headquarters in New York asks you to make a prediction about the future exchange rates in the country you are currently in. You see that the economy in the country you are in has started to ...
*November 1, 2015*

**SS**

That seems good. Thanks!
*November 1, 2015*

**SS**

What would be a modern example?
*November 1, 2015*

**SS**

What is an example of leaders using military force to gain wealth or power?
*November 1, 2015*

**business**

Consider a large multinational consumer product company with operations in all major advanced and emerging economics. Now suppose the value of Indonesian and South African currencies drops dramatically and the value of the Chinese rmb increases dramatically. What kind of ...
*November 1, 2015*

**business**

Suppose you are running a very small business that exports all of its products to Europe, and 100% of your revenue comes from euros. You have a family to support and a drop in the value of the euro could be devasting to your personal financial situation. What methods do you ...
*November 1, 2015*

**Urgent physics help**

Can you add a displacement vector and a velocity vector?
*November 1, 2015*

**need help**

I'm a teacher one of my kids ask me to help them out but I don't know them can you please help me then being rude
*November 1, 2015*

**need help **

ESSAY EXAMINATION 1 Objective To successfully complete the course, you must complete Essay Examination 1, which requires you to write your answers to specific questions covering important concepts from your studies. Please provide your answers using a Microsoft Word file. You ...
*November 1, 2015*

**Health statistics**

13.85x1.035=14.33
*November 1, 2015*

**Health statistics **

An employee currently earning $13.85 per hour has been awarded a 3.5 percent merit raise. What will gge employee's hourly salary be with this increase. 13.85x3.5=48.475 is what I'm thinking
*November 1, 2015*

**SS**

What is an example of leaders following the Persian example of tolerance?
*November 1, 2015*

**Algorithm**

Please, anyone who can help? pseudocode to display the next date of a Gregorian date given by a user considering a leap year. (just a language independent pseucode) I'm exhausted right now
*November 1, 2015*

**statistics**

An exam is standardized to a Normal model, with a mean of 105 and a standard deviation of 18. Based on the Normal model N(105, 18) What exam score represents the 96th percentile? What percentile of an exam score of 100 represent?
*November 1, 2015*

**Math**

Simplify this expression 25.515+0.85870(25-x) for x>25
*November 1, 2015*

**Chemistry**

For the chemical reaction, sodium hydroxide + copper (II) chloride = "robin's egg blue" precipitate, do the following: write the balanced molecular, balanced total ionic, and balanced net ionic equations; determine the Limiting Reactant (LR) for each chemical ...
*November 1, 2015*

**physics 6**

a bottle has a mass of 70 g when it is epty , 90 g when it is full of water and 96 when it is full of a liquid what is the density of the liquid
*November 1, 2015*

**Physics**

a diver of weight 600N stands at the end of a uniform 4.48m diving board of weight 150 N. The board is attatched to two pdestals 1.55m apart. Find the tension or compression in each of the pedestals.
*November 1, 2015*

**Math**

Find B when A = 76 degs, a = 34, and b = 21. My ans: 0.5993 degs Determine the area of the triangle in which A = 126 degs, b = 9, and c = 10. My ans: 36.41^2 units? Find a when C = 130 degs, B = 29 degs, and c = 15. My ans: 7.02
*November 1, 2015*

**Calculus**

Use the Shell Method to compute the volume V of the solid obtained by rotating the region enclosed by the graphs of the functions y = x^2, y = 8 − x^2,and x = 1/2 about the y-axis. Here is how I set up the integral: 2 pi integral sign [-2,2] (1/2 - x)[(8-x^2)- (x^2)]dx ...
*October 31, 2015*

**Government**

Explain five ways that a president can leave office.
*October 31, 2015*

**Principles of Finance**

5.16
*October 31, 2015*

**AP PHSYICS DUE LATE HOMEWORK HELP!!!**

write it out more easier to read
*October 31, 2015*

**AP PHSYICS DUE LATE HOMEWORK HELP!!!**

whats the answer?
*October 31, 2015*

**AP PHSYICS DUE LATE HOMEWORK HELP!!!**

explain 5 some more please
*October 31, 2015*

**AP PHSYICS DUE LATE HOMEWORK HELP!!!**

there is an answer for #4
*October 31, 2015*

**AP PHSYICS DUE LATE HOMEWORK HELP!!!**

4. Assuming that ball 1 was thrown with an initial velocity of 5 m/s, how far will it land away from the building horizontally? A. 10 M b. 16 M C. 21 M D. 0.63 M 5. A projectile is launched a t 35 m/s at an angle of 33 degrees. Determine (a) the maximum height of the ...
*October 31, 2015*

**Math**

Use cross products to see if each pair of ratios forms a proportion. Replace each box with a =or a = with a / thru the = 1: 7/5 box 10/15= =/ 2:6/8 box 15/20= = I pick the answers because I cross multiply. Idk. The reason why i had picked those that is way i am asking for help
*October 31, 2015*

**Biology**

Needed to transport proteins and lipids throughout cytoplasm. Must be able to work within complicated membrane passages. Some positions involve work with ribosomes
*October 31, 2015*

**physics**

A car slows down uniformly from a speed of 15.0 m/s to rest in 6.00 s .
*October 31, 2015*

**physics**

A car slows down uniformly from a speed of 15.0 m/s to rest in 6.00 s .
*October 31, 2015*

**physics**

4. Assuming that ball 1 was thrown with an initial velocity of 5 m/s, how far will it land away from the building horizontally? A. 10 M b. 16 M C. 21 M D. 0.63 M 5. A projectile is launched a t 35 m/s at an angle of 33 degrees. Determine (a) the maximum height of the ...
*October 31, 2015*

**Chemistry**

5CrO42-+2MnO4-+16H+->2MN2++8H2O+10CO2 .1818gC2O4*1mol/88.019gNaC2O4*2molMnO4-/5molC2O42-=8.2618^-4mol/.02812l=.02938M (Was I supposed to use the molar mass of NaCrO4 or just CrO4 for this step?) 2)16H++5Sn2++2MnO4- -->5Sn4++2Mn2++8H2O .02938M*.035L=.001028mol MnO4- ....
*October 31, 2015*

**Chemistry **

A 0.1818 g sample of sodium oxalate required 28.12 ml of a potassium permanganate solution to reach the endpoint (assume the reaction was carried out in excess acid). A 5.000 g sample of tin (II) sulfate containing potassium sulfate as an impurity was found to require 35.00 ml...
*October 31, 2015*

**ap physics**

a ball 1 is thrown horizontally from the top of a building that is 50 meters tall. if another ball 2 is dropped at the same time as the first is released, which ball will hit the ground first? A. ball 1 B. ball 2 c. they land at the same D. depends of the initial velocity of ...
*October 31, 2015*

**AP PHYSICS HELP**

u=5 meters?
*October 31, 2015*

**AP PHYSICS HELP**

A ball rolls off a 1 meters high desk and hits the ground 5 m away from the bottom of the desk. Determine the initial velocity of the ball. Free response
*October 31, 2015*

**AP PHYSICS HELP**

I still need help ebcause the answers are A. 2.5 m/s B. 5 m/s C. 1.75 m/s D. 2 m/s NOT 19 M/S
*October 31, 2015*

**AP PHYSICS HELP**

a ball 1 is thrown horizontally from the top of a building that is 50 meters tall. if another ball 2 is dropped at the same time as the first is released, which ball will hit the ground first? A. ball 1 B. ball 2 c. they land at the same D. depends of the initial velocity of ...
*October 31, 2015*

**AP PHYSICS HELP**

A diver runs horizontally with a speed of 1.5 m/s off a platform that is 20 m above the water. what is his speed just before hitting the ground?
*October 31, 2015*

**Chemistry**

A weather balloon is inflated to a volume of 29.9 L at a pressure of 755 mmHg and a temperature of 33.0 ∘C. The balloon rises in the atmosphere to an altitude where the pressure is 385 mmHg and the temperature is -16.2 ∘C. Assuming the balloon can freely expand, ...
*October 31, 2015*

**math**

In a parallelogram ABCD,if DO and CO bisect angle D and angle C respectively, what will be the value of angle DOC
*October 31, 2015*

**Algebra 2**

from (3t+1)^2≤0 it should be intuitively obvious that anything squared cannot be less zero So the only case possible is 3t=0 t=-1/3 , that is, when the equality holds true
*October 30, 2015*

**Physics**

A helicopter is flying horizontally at a constant 40 m/s when it drops a package below. Where does it land? 1. About 50 m ahead of the helicopter 2. About 80 m behind the helicopter 3. There is no way to answer without knowing how high the helicopter was above the ground when ...
*October 30, 2015*

**Math**

How do I solve 2sin4x cosx = 0 in the interval [0, 2pi)?
*October 30, 2015*

**math (algebra) **

A construction crew built 6 miles of road in 2/7 days. what is the unit rate in the miles per day? Deon drove 469 miles in 7 hours. At the same rate, how long would it take him to drive 806 miles?
*October 30, 2015*

**Math**

(F/g)(x)= 3x +2/8x-1
*October 30, 2015*

**Physics**

An 7.6-kg object is sliding across the ice at 2.34 m/s. An internal explosion occurs, splitting the object into two equal chunks and adding 11 J of kinetic energy to the system. What is the average acceleration of the two chunks if the explosive separation takes place over a 0...
*October 30, 2015*

**Math**

A utility company has the following rate schedule for natural gas usage in a city's district: Monthly service charge of $8.80; Per therm service charge: 1st 25 therms: $0.6686/therm; Over 25 therms: $0.85870 (a) What is the charge for usaging 25 therms in one month? (b) ...
*October 30, 2015*

**Social Studies**

dsgbfsdb
*October 30, 2015*

**Math**

The interval is actually [0, 2pi). Does that change the answer?
*October 30, 2015*

**Math**

Find the solutions of sin5x + sin3x = 0 in the interval 0, 2pi. My answer: 0, pi/2, pi, 3pi/2
*October 30, 2015*

**math**

Use polynomial long division to find the quotient and the remainder when 2x 3 +x 2 +3x−1 is divided by x+4 . Also, check your answer by showing that 2x 3 +x 2 +3x−1 is equal to x+4 times the quotient, plus the remainder. B. dividend = quotient x divisor + remainder...
*October 30, 2015*

**math**

thank you Steve u saved me
*October 30, 2015*

**math**

Use polynomial long division to find the quotient and the remainder when 4x 3 −3x 2 −x−2 is divided by x−4 :
*October 30, 2015*

**Biology**

Explain the processes that take place in the stroma including the reactants going in and the products produced from these processes in (a) bright sunlight and in (b) darkness. (c) What happens over an extended period of darkness of many days? I don't understand this I didn...
*October 30, 2015*

**Science**

if two waves are traveling at the same speed along the x axis will the one with the longer wavelength have the larger or smaller freq ? explain in terms of the number of wavelengths that pass a given point on the x axis in 1 sec My answer: smaller But how do I explain interns ...
*October 30, 2015*

**Politics Class**

Explore the importance of framing for discussions about immigration. I do not really understand what framing is and I have read some documents about it, but still don't quite get it.
*October 30, 2015*

**Math**

What is -sqrt of 3^2= ? Is the negative taken into consideration?
*October 30, 2015*

**Math**

Oops...forgot about the sqrt part in my calculations. Is it 7/sqrt50?
*October 30, 2015*

**Math**

Find the exact value of cosx/2 given that cosx = 24/25. Is this 49/50?
*October 30, 2015*

**Math**

Use a double-angle formula to find the exact value of cos2x when sinx = 3/5, where pi/2 < x < pi. -(7/25) or 7/25?
*October 30, 2015*

**Math**

The hypotenuse of a right triangle is 23 cm long. Find possible measures for the legs of the triangle. Round to the nearest hundredth. Justify your answer
*October 29, 2015*

**World History (only need websites)**

Describe the pattern of triangular trade that developed in the 1500s. It's worth 5 points I want as many of them as possible please help I am only asking for websites you don't have to give an answer.
*October 29, 2015*

**Physics**

Sky divers falls out of a plane at an altitude of 11750 m. How much time in seconds will they pass before they deploy their parachutes?
*October 29, 2015*

**Chemistry**

Find number of hydrogen atoms: 1 mol of NH3 1 mol of N2H4 4 mol of NH3 3 mol of N2H4
*October 29, 2015*

**Chemistry**

How many atoms are there in: A. 1 mole of Si? B. 2 mole of Si? C. 0.5 moles of Si? D. 0.10 moles of Si? I'm having trouble setting these up.
*October 29, 2015*

**science**

How many parts listed make up a plant or animal cell nucleus?
*October 29, 2015*

**Biology**

what do the following do in a cell: Smooth endoplasmic reticulum Mitochondrion Ribosomes Golgi apparatus Nuclear envelope
*October 29, 2015*

**math**

negative 3g+6+2g=15
*October 29, 2015*

**chemistry (helppp me)**

what is the bond order for BeF2? according to the lewis structure? ....according to MO diagrams its 0. 16 valence e-
*October 29, 2015*

**Math**

HELP!! If a blueprint for landscaping a yard and it has a scale of 1/2" to 1 foot, and the blueprint is a rectangle with 18 inches by 22 inches. What are the dimensions of the yard?
*October 29, 2015*

**english**

mary c curtis
*October 29, 2015*

**Biology**

A horse breeder has a black horse named Luca and he isn't certain about the horse's genetics. A purebred horse will be worth much more than a hybrid horse so he compiled all the information about the Luca and Luca's parents before approaching you. - Black is the ...
*October 29, 2015*

**chemistry**

if there are 8 homo orbitals, how do i know how many lumo orbitals there are?
*October 29, 2015*

**chemistry**

what is the bond order for BeF2?
*October 29, 2015*

**statistics **

one of the points in a set of points if (4,8). What is the residual for this point if the equation of the regression line for these points is y=3.6+1.8x
*October 29, 2015*

**spanish**

Tú ____________________ de los Estados Unidos. a. soy c. es b. son d. eres
*October 29, 2015*

**Science **

The Sun's surface layer is called the photosphere True or false? I think the answer is true. A star system has at least 3 stars. True or false? I think the answer is false. I am not completely sure on these. Could someone check them for me?
*October 29, 2015*

**technoligy **

using NOT when searching allows you to?
*October 29, 2015*

**Algebra**

an alloy of metals is 20% copper. another alloy is 70% copper.how much of each should be used to make 80 gram of an alloy that is 50% copper?
*October 29, 2015*

**Language Arts**

first you can write the answers and you write i can heip thing to do the so how you can you do and how you can not do and you find your thing to write and you can not put not the answers.
*October 29, 2015*

**Chemistry**

What is the mass of an atom's nucleus called?
*October 29, 2015*

**Chemistry**

So, when we add just one proton (no electrons or neutrons), it changes to beryllium-8?
*October 29, 2015*

**Chemistry**

Does adding a proton to lithium-7 make it a positively charged ion?
*October 29, 2015*

**Social Studies, Ms. Sue**

My teacher considers the invention of the telephone part of the industrial revolution
*October 29, 2015*

**Science**

Name the components of the respiratory system in the order incoming air would encounter then during breathing.
*October 29, 2015*

**algebra**

Jane has six more nickels than quarters and two fewer dimes than nickels. If she has a total of $2.70, how many of each type of coin does she have?
*October 29, 2015*