Saturday

December 10, 2016
Total # Posts: 1,885

**chemistry**

When the following equation is balanced, what is the coefficient for Ta? H2 + Ta2O3 → Ta + H2O

*December 6, 2014*

**Math Calculous**

Find a possible formula for a polynomial f with the following properties. f has degree less-than-or-equal-to 2, f(0) = f(3) = 0 and f(5) = 30 f(x) = ? k(x+0)(x+0)(x-3) I know the zeroes for 3 of them are 0, 0, 3, how would i find out the rest?

*December 5, 2014*

**Math calculous**

x 1 2 3 4 h(x) 7 20 43 76 x = 1 h(x) = 7 x = 2 h(x) = 20 x = 3 h(x) = 43 x = 4 h(x) = 76 Using the table or in this case information for the polynomial function of the degree 2 Find the formula for h(x) h(x) = ?

*December 4, 2014*

**Chemistry**

0.15 grams of benzene (C6H6) is dissolved into 4.7 grams of melted biphenyl. The freezing point of the mixture was determined to be 4.7 degrees below the freezing point of pure biphenyl. Based on these results, what is the Kf of biphenyl? (Use the standard units in your ...

*November 25, 2014*

**Math Check please**

Suppose c is inversely proportional to the square of d. If c = 4 when d equals 3.find the constant of proportionality and write the formula for c as a function of d c= 36/d^2 use your formula to find c when d is 5. is it 100/d2 or 100/5^2? I know the formula is c=k/d^2 c = ?

*November 21, 2014*

**Math**

f(x) = 3x^2 , g(x) = 3x-1, and m(x) = 4x Find and simplify the composition function g(m(f(x))) answers i got which were wrong 3x-1(12x^3) 36x^4-12x^3 Maybe i am putting the information in incorrectly.. Should it look like this (3x^2(4x(3x^2))) then solve?

*November 21, 2014*

**Econ (International Monetary System)**

Suppose Switzerland is on the gold standard and it maintains a strict ratio of gold in its vaults to money (Swiss francs) in circulation. Suppose that it runs a balance of payments deficit. What will happen to its overall money supply? What impact will this have on the Swiss ...

*November 19, 2014*

**Algebra 2**

Solve each equation using the Quadratic Formula. x^2+16=8x

*November 17, 2014*

**Algebra 2**

Solve each equation using the Quadratic Formula. 2x^2+3=7x

*November 17, 2014*

**Algebra 2**

Solve each equation using the Quadratic Formula. 3x^2+5x=2

*November 17, 2014*

**Algebra 2**

PLEASE HELP!!!!!!!!!!!!!!!!!! Solve each equation using the Quadratic Formula. x^2+12x+35=0

*November 17, 2014*

**Algebra**

Al¡¦s Rentals charges $25.00 per hour to rent a sailboard and a wet suit. Wendy¡¦s Rentals charges $20.00 per hour plus $15.00 extra for a wet suit. Find the number of hours for which the total charges for both companies would be the same. ƒ&...

*November 15, 2014*

**Health**

^^^ but true though

*November 15, 2014*

**Math **

This one confused me since it revolved around what seemed like dividing trig function by another function Write the following expression in terms of the tangent function 2 / ((cos(r^2 - s^2) / (sin(r^2 - s^2)) = ? I know tan t = sin t / cos t. So would I multiply by the ...

*November 14, 2014*

**Algebra 2**

Hey, I have another question. this I just don't understand. I'm really starting to get very confused!!! PLEASE HELP!!!!! Solve each equation by factoring. Check your answers. 3x^2+45=24x

*November 13, 2014*

**Algebra 2**

Hey, I don't understand this question I have honestly done this question about a good 3 times but never seemed to get the right answer. Please Help!!! Solve each equation by factoring. Check your answers. 7x^2=21x

*November 13, 2014*

**algebra**

Tom invests $10,000 into two accounts, one paying 2% interest per year and the other paying 5% interest per year. He invested 3 times as much in the account paying 5% than in the account paying 2%. how much interest will he ear in one year?

*November 12, 2014*

**algebra**

An exponential function passes through the points (2,3), (9,33), (15,K). What is the value of K?

*November 12, 2014*

**intermediate algebra**

two perpendicular lines intersect at (2,3) one of the lines has an x-intercept of 2. what are the equations of both lines?

*November 12, 2014*

**Intermediate algebra**

It is a question on my algebra homework!

*November 12, 2014*

**Intermediate algebra**

How many quarts of water must be mixed with 8 quarts of a 25% salt solutions to obtain a 17.5% salt solution?

*November 12, 2014*

**College engineering**

A prismatic bar has length L = 2m and a circular cross-section with diameter d = 50 mm. A tensile load is applied which causes thhe bar to extend by ∂ = 1.4 mm. a) Find the normal strain. b)If the elastic modulus is 200 GPa, find the applied aal tensile load P. I got ...

*November 11, 2014*

**algebra**

Give an equation of a line in slope intercept form that would be parallel to the equation y=3x+5 and passes through (0,3).

*November 6, 2014*

**Algebra 2**

A path of uniform width surrounds a rectangular garden that is 5m wide and 12m long. The area of the path is 168m^2. Find the width of the path.

*November 4, 2014*

**Algebra 2**

Dymond is painting a rectangular banner for a football game. She has enough paint to cover 120 ft^2. She wants the length of the banner to be 7 ft longer than the width. What dimensions should Dymond use for the banner?

*October 31, 2014*

**Business Law**

Any breach of contract discharges the breaching parties. True or false

*October 31, 2014*

**Physics**

Jeron has a tendency to drop his bowling ball upon release when bowling. Instead of having the ball on the floor at the completion of his swing, Jeron lets go of the ball 0.35m above the floor. If he throws the ball with a horizontal velocity of 5.3m/s, what distance does it ...

*October 31, 2014*

**Physics**

Alexis Farias realizes her dream to play golf on the moon. She hits a golf ball with an initial velocity of 23.5m/s at an angle of 35.0 degrees above the horizontal. The acceleration due to gravity on the moon is 1.67m/s^2. A). How long is the golf ball in the air? B). How far...

*October 31, 2014*

**Physics**

Alexis Farias realizes her dream to play golf on the moon. She hits a golf ball with an initial velocity of 23.5m/s at an angle of 35.0 degrees above the horizontal. The acceleration due to gravity on the moon is 1.67m/s^2. A). How long is the golf ball in the air? B). How far...

*October 31, 2014*

**Math Arc Length**

Find the arc length corresponding to an angle of a degrees on a circle radius of 4.9 Enter the exact answer. I put the arc length was 4.9api/180 got it wrong. Any help?

*October 31, 2014*

**physics help!**

Two springs P and Q both obey Hooke’s law. They have spring constants 2k and k respectively.The springs are stretched, separately, by a force that is gradually increased from zero up to a certain maximum value, the same for each spring. The work done in stretching spring ...

*October 28, 2014*

**math algebra**

A new shopping is opening this month.before agreeing to open shops, store managers had toconsider monthly rent and whether to pay one time fee to put shop name on sign in front of store. Kikis kupcakes number of months total rent paid 2 9700 5 16750 8 23800 10 28500 12 33200 ...

*October 23, 2014*

**AS ORGANIC CHEM**

An organic compound, X, will react with an excess of calcium metal to produce a salt with the empirical formula CaC4H6O4. What could be the identity of X? 1 ethanoic acid 2 butanedioic acid 3 methylpropanedioic acid With explanation please!

*October 22, 2014*

**Precalc (domain and range)**

Domain l(x) is -12 less than or equal to x less than equal to 12 and it's range is 0 less than or equal to l(x) less than equal to 3 (b) What are the domain and range of l(1/5x) Enter the exact answer Domain Range

*October 17, 2014*

**Science**

Thank you for helping me

*October 16, 2014*

**Science**

By telling me the answer to the question and then I can actually put it in my own word.

*October 16, 2014*

**Science**

.Define the following terms and provide a example of each: -atom, - compound, - element, -energy, - photosynthesis, -matter, - decomposition. Write it in your own words. . Explain the forms of energy: radiant, chemical, mechanical, electrical, thermal. . What is a food chain...

*October 16, 2014*

**chemistry**

A mixture containing 2.81 g each of CH4 (g), C2H4 (g) and C4H10 (g) is contained in a 1.50 L flask at a temperature of 35 oC. What is the partial pressure (in atm) of C4H10 (g)?

*October 13, 2014*

**MATH (STATS)**

To determine the views of a students on a particular campus about fraternities, an 11-point attitude scale was administered to a random sample of 40 students. This survey yielded a sample mean of 6 (the higher the score, the more favorable the view of the fraternities) and a ...

*October 8, 2014*

**math**

3+(-4)

*October 8, 2014*

**Sociology (Stats) Std. Dev**

Given (μ) = 500, and σ = 100. What percentage of the SAT scores falls: A) Between 500 and 600? The percentage falls 1 σ above the (μ), 68.26% / 2 = 34.13% B) Between 400 and 600? The percentage falls 1 σ below and 1 σ above the (μ) C) Between...

*October 8, 2014*

**Social studies**

Ms.sue

*October 7, 2014*

**Social studies**

Yes I mean the commons house of assembly in the South Carolina was more democratic by?

*October 7, 2014*

**Social studies**

Ms.sue

*October 7, 2014*

**Social studies**

Are those correct mrs.sue

*October 7, 2014*

**Social studies **

3.how were farms of the new england colonies similar to the farms of the up country A.separating church and state B.requiring all laws be approved by the council*** C. Creating a jury system for legal decisions D. Giving the people a stronger voice in the government

*October 7, 2014*

**physics**

When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 4.80 m. A child, who is holding the same gun in a horizontal position, is also sliding down a 45° incline at a constant speed of 1....

*October 5, 2014*

**Chemistry **

HELP PLEASE. I have no idea how to set this up. I tried using the q=mc(change in temp) equation but its not working out. A 59.8 g block of an unknown metal at 87.5 degrees Celsius was dropped into an insulated vesssel containing approximately 33 g of ice and 23 g of water at 0...

*September 30, 2014*

**science**

an astronaut has a mass of 60 kilograms on earth. what would her mass be on mars? what would her weight be on mars? the strength of gravity o mars is 3.7 m/s^2.... am having a slow moment, please help

*September 29, 2014*

**pre algebra**

A cylinder has a circumference of 16pi inches and its height is half the radius of the cylinder? What is the total surface area of the cylinder? Give answer in terms of pi. do not know how to do this....please help

*September 28, 2014*

**Pre-Calc**

If you use the parent graph f(x)=x^2, how would you graph g(x)=(x-4)^2-2?

*September 26, 2014*

**business**

.16 1.22 b

*September 25, 2014*

**math**

A glass prism on a chandelier is 75mm long. A base of the prism is an equilateral triangle with side lengths of 9mm and a height of about 7.8 mm. What is approximate surface area of prism?

*September 24, 2014*

**math**

Hate to seem stupid, but still don't understand

*September 24, 2014*

**math**

A rectangular prism has a length of 8 in and a width of 7 in. The lateral area is 150 square in. What is height of prism? Have no idea how to do this....please help

*September 24, 2014*

**math**

Am confused. The bases of a prism are right triangles with side lengths 6 meters, 8 meters, and 10 meters. The height of the prism is 3 meters. What is the lateral area of the prism? What is the total surface area? L=Ph perimeter is side(1) +side(2)+side(3) 6+8+10=24 (3)=72m^2...

*September 24, 2014*

**Math**

How many liters are in 4.371

*September 24, 2014*

**math**

18.75 lbs = 5000 sq ft how much needed to cover 27000 sq ft

*September 24, 2014*

**math**

12.5% =.125=125/1000 or 12 5/10=12 1/2 m confused

*September 23, 2014*

**math**

Changing decimal to percent .123=12.3%=12 3/10 ??

*September 23, 2014*

**math**

3×/4+11=22-5 3×/4+11-11=22-5-11 3×/4=6 (4) 3×/4=6 (4) 3×=24 /3=24/3 ×=8 correct... 3(8)/4+11=22-5 24/4+11=17 6+11=17 17=17 Nevermind :)

*September 23, 2014*

**math**

2a÷4=3 .....is this answer correct: 2a=3×4 2a=12 2a÷2=12÷2 a=6

*September 23, 2014*

**math**

As part of her training, an athlete runs 11 kilometers each day. How many kilometers does she run in 24 days?

*September 21, 2014*

**science/math**

a skateboarder traveling at 7.0 meters per second rolls to a stop at the top of a ramp in 3.0 seconds. what is the skateboarders acceleration? is 2.3m/s correct

*September 18, 2014*

**science/math**

a cyclist accelerates at a rate of 7.0m/s^2. how long will it take the cyclist to reach a speed of 18m/s? my answer is 2.5seconds. is this correct?

*September 18, 2014*

**science/math**

so what would 60m/s be in m/s^2?

*September 18, 2014*

**science/math**

feel silly asking this, but how do u come up with 8m/s^2?

*September 18, 2014*

**science/math**

as she climbs a hill, a cyclist slows down from 25mi/hr to 6mi/hr in 10 seconds. what is her deceleration? my answer is -1.9 is this correct or should it be a positive 1.9...am confused

*September 18, 2014*

**science/math**

oops, didn't find acceleration first(7.5), which is 60 /8. Then 7.5 x 5 + 50=87.5, a*t+v(starting speed)=final speed

*September 17, 2014*

**science**

am confused. don't know what formula to use for this problem. A car traveling at a speed of 30.0m/s encounters an emergency and comes to a complete stop. How much time will it take for the car to stop if it decelerates at -4.0m/s?

*September 17, 2014*

**social studies check**

Thank you Ms. Sue your awesome!!

*September 12, 2014*

**social studies check**

I thought that about #2 as well It was a toss up between the two For the last is it a? And for the first one c?

*September 12, 2014*

**social studies check**

Which of these is a non-monetary positive incentive for entrepreneurs? a) the need to hire and train workers *** b)the risk of starting a new enterprise c) the satisfaction of creating new products d) the responsibilities of running a business Pete's Peanuts wants to grow ...

*September 12, 2014*

**social studies HELP**

Woohoo I am learning something Thank you Ms. Sue!!

*September 12, 2014*

**social studies HELP**

Check my answers please 1. Politics most informs a persons actions in a. Civic life *** b. work life c. private life d. school life 2. Which of the following best describes the purpose of the US Constitution? a. it restricts the rights of citizens b. it outlines how the ...

*September 12, 2014*

**8th grade math**

mr.nelson sold 147 bags of popcorn and 216 of water in 3 days. at this rate how many more bottles of water than bags of popcorn will mr. nelson sell in 5 days?

*September 9, 2014*

**8th grade math**

is answer 4/21 for people eating pancakes. 1/7 of 42 is 6 and 2/3 of 42 is 28. added together and got 34. then subtracted 34 from 42 and got 8. so would it be 8/42 and reduce which would be 4/21. not sure this is answer.

*September 9, 2014*

**8th grade math**

at a restaurant 42 people had breakfast on saturday morning. 1/7 of the people ate eggs only. 2/3 of people ate both eggs and pancakes. the remaining people ate pancakes only. what is the fraction representing the number of people who ate pancakes only.

*September 9, 2014*

**8th**

thank you. was helping my son on a practice worksheet and couldn't remember how to do it. he doesnt have a workbook just worksheets and no examples. these questions werent for a grade.

*September 9, 2014*

**8th**

yael worked out at a gym for 2 hrs. her workout consisted of stretching for 21 minutes jogging for 45 minutes and lifting weights for the remaining amount of time. what percentage of yaels workout was spent lifting weights?

*September 9, 2014*

**8th grade math**

members of a nature club participate in an official butterfly count every summer. in summer of 1996 members counted 225 monarch butterflies . in summer of 1997 members counted 234 monarch butterflies. from 1996 to 1997 what was the approximate percent of increase in the number...

*September 9, 2014*

**8th grade math**

juliet bought a pair of pants that normally cost $40 for a sale price of $24. what was the percent discount on the pants?

*September 9, 2014*

**8th grade math**

on a recent space shuttle mission the astronauts traveled 105,000 miles during the first 3 days of their mission. this distance was 5/8 of the total distance they would travel. what was the total distance the astronauts would travel?

*September 9, 2014*

**8th grade math**

a survey said that 60 people voted against new environmental restrictions that were on the ballot. that constituted 30 percent of those who voted. how many people voted in all?

*September 9, 2014*

**8th grade math**

in a catalog a jacket was marked down from $75 to $48. what was the percent of discount on the jackets original price?

*September 9, 2014*

**chemistry**

what is the mass of oxygen in a 5.6 g sample of Al(NO3)3.

*September 9, 2014*

**8th math**

wayne wanted to buy a new bicycle that cost $125. the sales tax on bicycle was $11.25. what was the rate of the sales tax?

*September 9, 2014*

**Physics**

A helicopter is ascending vertically with a speed of 5.66m/s. At a height of 106m above the Earth, a package is dropped from the helicopter. How much time does it take the package the package to reach the ground? (Ignore air resistance) I would like to know what my givens are ...

*September 8, 2014*

**Math**

Which is greater the greatest whole number with 4 digits or the least whole number with 5 digits?

*September 3, 2014*

**Algebra 2**

How would you find that? Just guess and check?

*September 2, 2014*

**Algebra 2**

A building has a mural painted on an outside wall. The mural is a square with an area of 14,400 ft^2. What is the width of the mural?

*September 2, 2014*

**Chemistry**

Alright that makes sense, thank you very much for the help.

*September 1, 2014*

**Chemistry**

Please Explain how to do it because i've been stuck on it and gotten it wrong multiple times

*September 1, 2014*

**Chemistry**

When 62.1 moles of calcium acetate are dissolved in enough water to make 585.1 milliliters of solution, what is the molarity of acetate ions? Answer in units of M

*September 1, 2014*

**algebra 2**

where did you get the 0.7 from?

*August 30, 2014*

**algebra 2**

glenn bought a new shirt on sale for 30% off. the original price of the shirt was $19.49. write an expression without subtraction to find the sale price of the shirt. then find the sale price.

*August 30, 2014*

**algebra 2**

mona lives in florida. she drives 550 miles to texas. her car's tank holds 15 gallons of gas and she gets an average of 25 miles per gallon of gas. if mona fills up her gas tank before she leaves, how many more times will she have to fill up the tank to drive to texas and ...

*August 30, 2014*

**english**

I need to state if the style of the book is subjective or objective. Is it subjective because it is a fictional book?

*August 30, 2014*

**english**

How many paragraphs should this be? my essay must be 2-4 pages but he doesn't specify the length of the book review at all and I'm not sure if it should be as long or not

*August 30, 2014*

**english**

I have to write a BOOK REVIEW and a WRITTEN ESSAY on the same book and I don't know what the difference is between them because the rubric doesn't give me very many details on how to do it

*August 30, 2014*