Friday

August 1, 2014

August 1, 2014

Total # Posts: 132

**math**

A bottle of water costs $1.50. Explain how you would make a graph of four ordered pairs to model the total cost of the water in terms of the number of bottles.

**Math**

Gina's base pay rate is $12.25 per hour, with overtime pay of time-and-a-half, and double-time for holidays. Calculate her gross pay if she worked 4.5 holiday hours in addition to 39 hours Monday through Saturday Is this the proper way to set it up: (12.25 * 1.5 * 39)= ? (...

**Math**

Lee Lu is paid $12.50 per hour, with overtime pay of time-and-a-half for Saturday work and double time for Sunday. Calculate her gross pay if she worked 35 hours during the week, 5 hours Saturday and 3 hours Sunday.

**Finance - Annuities**

Natasha plans to deposit $4,000 per year in her account for each of the next 4 years. Thereafter, she expects to deposit $1,500 per year for another 4 years. All deposits are made at year-end. Interest rates are expected to be 8 percent for the next 2 years, and 11 percent the...

**Physics**

An aircraft has a cruising speed of 100 m/s On a particular day, a wind is blowing from the west at 75.0 m/s If the plane is pointed due north, what would be the magnitude and direction of the velocity relative to the ground? If the pilot wishes to have a resultant direction o...

**chem**

H2o2+3i+2h -----> I3+2H2o In the first 10.0 second of the reaction the concentration of I dropped from 1.000M to 0.868M a) calculate the average rate of reaction for iodine in this time interval. b) Determine the rate of change in the concentration of H during this time int...

**Chemistry**

A 7.85 g sample of a compound with the empirical formula C5H4 is dissolved in 301 g of benzene. The freezing point of the solution is 1.05C below that of pure benzene. what are the molar mass and molecular formula of this compound?

**math**

thanks

**math**

5s/(s^2-t^2) - s/(s-t)

**math**

4c/7c-14 + 6c/14c-28

**health 5 grade**

#4. i believe that the cold will affect my physical health, mental health, emotional health family and social health. i think that because this will affect the way how i act and it will also make weaker witch will affect my physical health. furthermore it will affect my family...

**health 5 grade**

i need help in health subject for my son 5 grade Question 1- connect suppose you have a cold. this affects your physical health. does if affect your mental,emotional,family, and social health, too? explain why or why not. Question 2- practice healthful behaviors Make a list of...

**chemistry **

Analysis of aluminum-zinc alloy Mass of gelatin capsule 0.1284 g ambient temp. 22c mass of capsule plus alloy sample 0.3432g ambient temp_________K mass of alloy sample, m__________g barometric pressure 745 mm Hg mass of empty beaker 144.5g Vapor pressure at H2O at t__________...

**chemistry**

As pure elements. all of the halogens are diatomic molecular species. their melting points are: F2, 85 K, Cl2 239 K, Br2 332 K, and I2 457 K. using periodic table, how can i predict the molecular formula of elemental astatine. at the only radioactive element in this family. al...

**chemistry**

i have to write lab report based on my determination of chemical formula & in lab we did experiment & found out the formula was cucl2*2h2o, in my lab report i have to start with mole to mole ratio how can i start writing that?

**algebra**

for the function g(x)=5x^6-3x^3+x^2-x, list the possible rational zeros of g(x) and then use synthetic division to factor g(x) completely.

**algebra**

three students are running a race .how different ways can they finish the race

**english**

a group of tourists is being led through a famous cathedral by a guide. one family of four is japenese, but at least three other tourist in the goup ar not. All but five of the group are american what is the least number of tourists that can be in this group?.

**math**

In vanessa's coin bank there are 4 times as many quaters as nickels, 2 fewer dimes than nickels, and 15 pennies. the total amount in the bank is $5.80. How many of each coin are in the bank? assign a variable to unknown and write an equation to find unknown.

**math**

440

**math**

there are 1,320 ways for three students to win first,second,third place during a debate match. how many students are there on the debate team? explain your reasoning

**Chemistry**

I don't know how to reply to an answer. First of all thank you! For the question I just asked about the titration curves. Would that mean that titrating with barium hydroxide would take half the volume that is used when titrating with sodium hydroxide? Oh and there was a s...

**Chemistry**

If two titrations were completed were completed: 1) the titration of HCl with Na(OH) 2)the titration of HCl with Ba(OH)2 (the concentrations of acid and base for both titrations are the same) How would the titration curves of each solution be different? I know what the titrati...

**Chemistry**

So if two titrations were completed were completed: 1) the titration of HCl with Na(OH) 2)the titration of HCl with Ba(OH)2 (the concentrations of acid and base for both titrations are the same) I know what the titration curve of the first one looks like, but compared to the s...

**Chemistry**

How would the titration curve of hydrochloric acid solution differ if barium hydroxide was used to titrate instead of sodium hydroxide? How would the titration curve of hydrochloric acid solution with sodium hydroxide differ from the titration curve of acetic acid solution wit...

**Chemistry**

What is the ph of the final solution when 10 mL of HCl is completely neutralized with 11mL of 0.1M Na(OH)?

**College Chemistry**

Would 20.0g of steam at 100 deg centi be enough to melt 20.0 g of ice at 0 degre cent

**calc**

Use the Midpoint Rule to approximate the integral The integral from 2 to 7 of (–1x–6x^2)dx

**Health**

Yes. All six dimensions of health are important. This provides a well balanced person. If the person is depressed or sad, this can throw off the balance of the body. The six dimensions of health - proper weight and diet; proper exercise; breaking the smoking habit; control of ...

**Algebra**

Write the equation in standard form. (2,8) m=9 What are the steps to do this?

**math**

if you know the number of faces on a pyramid you know the number of vertices true or false

**physics**

A metal sphere of radius r is dropped into a tank of water. As it sinks at speed v, it experiences a drag force F given by F = kr v, where k is a constant. What are the SI base units of k?

**statistic**

COME ON MS SUE. PLEASE DON'T ANSWER MY QUESTION IF YOU DO NOT KNOW!! BE PROFESSIONAL OK.

**statistic**

For a given month, a random sample of 30 sales girls from a superstore has a sample mean of salary of RM 800 with standard deviations of RM 140. Estimate the mean monthly salary for all employees using the 95% confidence interval.(what does mean of 95% confidence level?)

**statistics**

Yes i'm looking for the z score. Thank you so much.

**statistics**

1. On final examination in Business Law, the mean was 68 and the standard deviation was 12. Determine the standard scores of students receiving marks of 50?

**geometry**

An angles measure is 3 times of its complement. find the measure of the angle and the measure of its complement.

**calculus**

A container company is tasked to make an open-top rectangular box with a square base. The box must have a volume of 108cm^(3). let the length of the sides of the square base be x cm and the height h cm. (1) what value of x will produce the minimum outer surface area? (2) What ...

**Science **

Of the three local winds, which do you think could be easily harnessed for the generation of electricity by a huge wind farm and why? Land and Sea Breezes,Mountain and Valley Breezes or Chinook and Santa Ana Winds.

**chem**

at 40 degree C , the vapour pressure of water is 55.3 mm of hg. calculate the vapour pressure at same temp. of 10%aques solution of urea??

**geometry**

How do you find the perimeter of a regular dodecagon whose side is 12cm

**math**

How long will it take a given quantity of carbon-14 to lose 99.9% of its radioactivity if the half life is 5730 years? The formula I have been given is Q=ae^rt This is using log and ln functions.

**physics**

The temperature of 4.60 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in the average kin...

**physics**

An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to volume 1310 cm3. If the expansion is isothermal, what are (a) the final pressure (in atm) and (b) the work done by the gas? If, instead, the expansion...

**physics**

An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to volume 1310 cm3. If the expansion is isothermal, what are (a) the final pressure (in atm) and (b) the work done by the gas? If, instead, the expansion...

**physics**

A glass window pane is exactly 23 cm by 38 cm at 10oC. By how much has its area increased when it temperature is 49oC, assuming that it can expand freely? Take the coefficient of thermal expansion for the glass to be exactly 9 x 10-6/Co

**physics**

An ideal monatomic gas initially has a temperature of 338 K and a pressure of 6.96 atm. It is to expand from volume 435 cm3 to volume 1310 cm3. If the expansion is isothermal, what are (a) the final pressure (in atm) and (b) the work done by the gas? If, instead, the expansion...

**physics**

In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that ...

**Modern Algebra**

Let F be a field and let f(x), g(x), h(x), and d(x) be polynomials in F[x]. Prove that if d(x)=gcd(f(x),g(x)) and both f(x) and g(x) divide h(x), then f(x)g(x) divides h(x)d(x).

**8th Grade Science**

I have to do a project and I have to have 9 or more physial and chemical properties of colloids and suspensions. I am soo stuck!!! Help!! Thanks!

**Math**

Construct a truth table for ~q^p

**math**

simplify 9qt9pt

**algebra**

solve for y. y=-(x-6)/(3)

**College Chem**

n= PV/RT n={(2.4)x(25)}/{(.082)x(288) -> n x 6.022x10^23 = answer

**bio**

? help at all

**bio**

yes they are all hairs on the body are the same because they are all made of growing proteins and in some people for example there hair may be course so the hair on there arms legs that sorta thing is going to grow in strong and dark so yes they r all the same structurally. di...

**math 4**

please help me people

**math 4**

multiply a mixed number by a proper fraction ? results in a number greater than 1. what goes where the ? mark is

**english**

boy's

**math!!!!!!! help 3**

THANK YOU 4 helping math isent my strong suit but it helps to be walked through it instead of just given the answer i greatly appretiate your time

**math!!!!!!! help 3**

ok so the answer would then be 1 2/5s gallons?

**math!!!!!!! help 3**

well i got stuck because i did 3/5*6/1 and i got 18/5 then i did 18 divied by 5 and got 3 3/5 so is 3 3/5 the answer

**math!!!!!!! help 3**

i have a question for jen

**math!!!!!!! help 3**

is it 3 3/5

**math!!!!!!! help 3**

a water cooler contains 5 gallons of water.if drink 3/5 gallon for each of the next 6 days how many gallons will be left in water cooler at the end of the sixth?

**math!!!!!!! help agian**

thank u 4 helping me 4 this long :)

**math!!!!!!! help agian**

oh ok THANK U i get it now!!!!!!@!!

**math!!!!!!! help agian**

50/4= 2 1/4= 2 3/4

**math!!!!!!! help agian**

1/4*50/1= (2 12/4)=(2 3/4)

**math!!!!!!! help**

i get parts of it but i dont no how it would be around five unless i add the denominatorns wait is it 15 1/6

**math!!!!!!! help**

i give up thanks 4 the hep though

**math!!!!!!! help**

i dont no is the answer 15 1/9

**math!!!!!!! help**

Traniers measure horses in hands the distance acrosss an adults plam the average height of a horse is 15 1/2 hands if a hand is bout 1/3 foot how tall is an average horse in feet?

**math**

oh thanks can u help on my otha question i have posted

**math**

how u get 1 1/3

**math**

that makes no sense i got to the 4/3 part how u get the rest

**math**

1/3*4=

**math**

ms.sue

**math**

PLEASE HELP

**math**

what is the greatest common factor using prime factoraztion for 90 and 126

**statistics**

Part A: Get the z score: z = (phat-p)/sqrt(p*(1-p)/N) z = (0.17-0.2)/sqrt(0.2*0.8/1000) z = -2.3717 p(z < -2.3717) = 0.0089 Part B: Since that probability is extremely low, we can conclude that less than 20% actually use the chips.

**Ms.Sue**

How does she know everything is she one of the tutors?

**spelling**

did my answer help at all

**spelling**

a low mornful sound made in a mater of greif or pain

**math**

plzzzz help me its do tommra and i cant figure it out

**math**

what is the LCM of 8 12 and 5

**history**

Why was geroge washingtin elected

**Chemistry**

write balance chemical equation for gaseous hydrogen gas to form gaseous methane ch4 and liquid water.

**Aed 204**

Assignment: Creating an At-Risk Program Resources: Ch. 8 of Multicultural Education and Appendix E. Imagine that you have been asked to serve on the advisory board for a new, alternative school program in your school district. The advisory board must specify the factors that w...

**Finance**

A risk adverse investor would choose the economy in which stock-returns are independent because the risk can be diversified away in a large portfolio.

**advance algebra**

y=2x squared -8x+7 what is this equation in vertex form?

**chemistry**

Where is the hint??

**chemistry**

Would you expect ortho-dimethoxybenzene or para-dimethoxybenzene to be nitrated more readily? Justify your choice briefly.

**chemistry**

Would you expect ortho-dimethoxybenzene or para-dimethoxybenzene to be nitrated more readily? Justify your choice briefly.

**Math**

Is this problem correct? 5x+6<31= is the answer : x<5

**9th grade**

I am having trouble trying to figure out how to work this problem: Determine if each relation is a function. 1. Relation: (-2,2),(3,2,),(4,-1),(5,-2) How do i do this???????

**Organic Chem**

What is the product formed from the nitration of 1,2-dimethoxybenzene ( veratrole)? What would be the equation for the reaction. Details. Veratrole was mixed with glacial acetic acid.This mixture was then added dropwise to a solution of nitric acid and water.

**Chemistry**

What is the balanced ionic equation between bromine and sodium bisulfite??? thanks

**Math**

Can you please help me with this equation. we have to factor x to the power of three equal 25x.can u help me with it?