Thursday

October 27, 2016
Total # Posts: 101

**Chemistry **

Determine the volume of a 67.5g piece of aluminum with density of 2.70 g/mL? -I know V=M/p and this is what I came up with but I'm not sure i'm correct.. p = 2.7 g/cm3 M = 67.5 g V = 25 cm3 3√ V = 2.9240177382129 cm

*October 18, 2016*

**Chemistry **

Determine the mass of 18.7mL of rubbing alcohol with a density of 0.79 g/mL? - I got 14.77. I'm not sure I'm right. If someone could clarify I'd appreciate it! Thanks!

*October 18, 2016*

**Chemistry **

A 1.75 gram perfect cube of wood has a side measure of 2.45 cm, what is the density of the wood?

*October 18, 2016*

**Algebra**

fifteen years ago Jane was x years old, and also Karen was one third(1/3) as old as Jane. a) Write down an algebraic expression for Karen's age fifteen years ago, in terms of x. - would it be x/3 b) write down an algebraic expression for Karen's age now, in terms of x...

*September 10, 2016*

**algebra**

A spring with a 2-pound weight suspended is 9 inches in length. With a 5-pound weight suspended, the length increases to 13.5 inches. Which equation does not represent the behavior of the spring? y – 2 = 1.5(x – 9) y – 9 = 1.5(x – 2) y = 1.5x + 6 y – ...

*July 1, 2016*

**algebra**

You are going on a camping trip and can carry only 2 gallons, or 8 quarts, of water. After 2 days of hiking, you have used 3 quarts of water. There is an accident, and you find yourself on a ledge where you must wait for someone to find you. You decide to drink 2 cups of water...

*June 30, 2016*

**Chemistry 171 Lab**

Suppose we collect hydrogen gas, H2(g), over water at 21◦C in a vessel with total pressure of 743 Torr. If the hydrogen gas is produced by the reaction of aluminum with hydrochloric acid: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g) what volume of hydrogen gas will be ...

*June 15, 2016*

**History**

okay, thanks so much!

*May 10, 2016*

**History**

In the Byzantine Empire, the emperor A) controlled the church** B) took orders from people C) obeyed church leaders D) always helped defend Italy Ugh please help!

*May 10, 2016*

**Sociology**

Could you watch the videos and help me answer them, i watched them i just don't get the answers or how to answer them.

*January 29, 2016*

**Sociology**

For question #3, reference the videos "History of the Most Cajun Place on Earth"and “Music & Culture in the Most Cajun Place on Earth” A) Briefly describe the formation of the Cajun culture as an American subculture in the context of historical events and ...

*January 29, 2016*

**Math**

Xavier and $11.50 per hour working at the nearby grocery store last week Xavier worked for 13.5 hours how much money did Xavier and last week remember to round to the nearest penny I tried and tried but it is to hard for me I am 11 and I'm in 6th grade and I'm hoping ...

*December 8, 2015*

**Physics**

dicks

*November 26, 2015*

**Business Calculus**

Bill wants to fence in his rectangular garden so his precious produce will be protected. Three sides of the fence will be constructed with wire at $2 per linear foot and the fourth side will be constructed of wood fencing at a cost of 6$ per linear foot.If he has $400 to spend...

*November 2, 2015*

**algebra2**

classify each system and determine the number of solutions: 5x-y=-3 and 15x-3y=-9

*October 18, 2015*

**Maths **

A chord 6.6m long is 5.6m from the centre of the circle.find the radius of the circle.

*August 11, 2015*

**Algebra 1**

Find the vertex for y= -x^2+1/2x+2 I could not figure out the vertex! Please help me!

*April 6, 2015*

**Math**

You lean a 30 foot ladder against your house and it reaches exactly to the top. The ladder makes a 24˚ angle with the ground. How tall is your house? (I drew a picture of a house and the ladder)

*January 7, 2015*

**College Geometry**

A tipi is a portable structure made of poles and covered in hides. Native American tipis varied in size and the number of poles used. A 12-pole tipi framework is shown in the following figure. The framework of a tipi lean toward the west so the apex was not centered above the ...

*December 1, 2014*

**Algebra 1**

How do you find the zeros? g(x) = x3 – x2 – 4x + 4

*June 26, 2014*

**CALC 2**

B. 2 students are sharing a loaf of bread. Student A eats 2/3 of the loaf, then student B eats half of what remains, then student A eats 2/3 of what remains, then student B eats half of what remains, and so on. How much of the loaf will each student eat? C. 3 students decide ...

*March 30, 2014*

**Chemistry**

Suppose that 14.9 mL of 0.0512 M NaOH were required to titrate a sample of unknown acid. How many moles of NaOH were used?

*March 5, 2014*

**chem**

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 Kelvin and 1.21 atmospheres? Show all of the work used to solve this problem. 2 Li (s) + 2 H2O (l) yields 2 LiOH (aq) + H2 (g)

*February 19, 2014*

**Ant101**

"In most situations, the first-born male has priority to inherit the chieftainship (primogeniture)" (Nowak & Laird, 2010, p. 177

*December 15, 2013*

**Chemistry**

The specific heat of solid gold is 0.13 J/g • °C. How much heat is needed to raise the temperature of 25.0 g of gold from 23°C to its melting point at 1063°C?

*November 29, 2013*

**algebra 2**

a large table seats 12 and cost $50 , a small table seats 8 and costs $25, how many tables of each must be rented to seat 100 guests for $350, for the life of me , i cant remember how to do this.

*September 10, 2013*

**information Literacy**

1. Which of the following sets of Library of Congress call numbers is in the correct order? A. P201 .A251 1977, PE205 .C253 1954, PH202 .H255 1965, PA 203 .B252 1971 B. PE205 .C253 1954, PH202 .H255 1965, PA 203 .B252 1971, P201 .A251 1977 C. P201 .A251 1977, PA 203 .B252 1971...

*June 26, 2013*

**Math**

351 m2

*June 4, 2013*

**grammar**

Calipers were set and verified at 5 mm. What are the verbs

*May 25, 2013*

**Math**

$90 divided $1200 = 0.075 x 100 = $7.5 $7.5 = 13.5% APR

*April 4, 2013*

**Math**

For n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x successes. Round your answer to four decimal places n = 10, p = 1/7, x = 3 A. 0.1189 B. 0.1546 C. 0.1308 D. 0.1427

*April 4, 2013*

**Math**

For n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x successes. Round your answer to four decimal places n = 10, p = 1/7, x = 3 A. 0.1189 B. 0.1546 C. 0.1308 D. 0.1427

*April 4, 2013*

**English**

Which sentence uses italics, quotation marks, and punctuation correctly? (1 point) “How many r’s are there in the word February”? “How many r’s are there in the word February?” asked Ty. “How many r’s are there in the word February,”...

*March 20, 2013*

**Math**

B (The whole thing is D, A, B, B, B)

*January 16, 2013*

**Statistics**

The Columbus Zoo conducts a study to determine whether a household’s income can be used to predict the amount of money the household will give to the zoo’s annual fund drive. Give explanatory and response variables of this study?

*November 24, 2012*

**Statistics**

Scores on the SAT verbal test in recent years follow approximately N(504,111) distribution. What is the proportion of students scoring between 450 and 550? How high must a student score to place in the top 10% of all students taking the SAT? Please show the steps to obtaining ...

*November 24, 2012*

**Calculus**

Find (1) marginal and (2)the average functions for the following total function. Evaluate them at Q=3 and Q=5 π=q^2+13q+78

*November 21, 2012*

**chemistry**

How many grams of phosphoric acid can be made from 200 g of dichromate and 150 grams of hypophosphorous acid? (Performed in an acidic solution, Chromium III is one of the products)

*October 10, 2012*

**Chemistry**

A block of metal has a width of 3.2 cm , a length of 17.1cm , and height of 5.8cm . Its mass is 1.5kg . Calculate the density of the metal.

*September 29, 2012*

**health**

SO did i smh cant trust jishka no more im reporting this to the police

*September 7, 2012*

**Calculus**

A steel storage tank for propane gas is to be constructed in the shape of a right circular cylinder with a hempishere at each end. The cost per square foot of constructing the end pieces is twice that of contructing the cylindrical piece. If the desired capacity of the tank is...

*July 2, 2012*

**Informal Logic**

A conditional sentence with a false antecedent is always true false Cannot be determined not a sentence i believe it is true but unsure Please help me

*June 3, 2012*

**Physics(Please help)**

Use the acceleration of gravity to find her velocity 1.2 s before impact. Average the two velocities times the 1.2 s to get the displacement. v = v0 - g*t -10.4 = v0 - 9.81*1.2 v0 = 1.372 So the diver was above the level from which she dove from at 1.2 s before impact. The ...

*May 27, 2012*

**Logic**

A radical skeptic might be willing to doubt which of the following? 3 + 5 = 8 Grass is green. Cheese is fattening. All of the above I think it would be that cheese is fattening but not exactly sure. Please help!

*May 27, 2012*

**math**

Observe the first three sets of numbers to determine the missing value in the fourth set. Are you sure you know the value? {-5, 23, 12, 16} {1, 39, -14, 52} {17, 47, 42, -12} {25, ?, 11, 31}

*April 11, 2012*

**xeco/212**

Thank you so much!!

*March 19, 2012*

**xeco/212**

I am having a horrible time coming up with an example of the "law of supply." Any suggestions would be helpful.

*March 19, 2012*

**math**

If Ashante' got 21 questions correct out of 25, what percent went in the grade book?

*February 8, 2012*

**BUS/210**

Thank you so much, you have no idea how much you helped me with just one sentence and three links. I greatly appreciate it.

*February 8, 2012*

**BUS/210**

Could you please explain to me what a business model is so that I might actually be able to grasp the concept. I am so lost. Thank you in advance for any assistance.

*February 8, 2012*

**Theater Arts**

Thank you. (:

*January 12, 2012*

**Theater Arts**

I'm writing a play for theater, but I can't think of a good title. It's about a girl who runs away from a terrible life, but then she meets a guy who changes it all. Help? (:

*January 12, 2012*

**Theater**

I'm writing a play for theater, but I can't think of a good title. It's about a girl who runs away from a terrible life, but then she meets a guy who changes it all. Help? (:

*January 11, 2012*

**com/150**

How could I improve this thesis statement? “Most people do not feel it is their obligation or responsibility; however, there are personal benefits from community service.”

*November 28, 2011*

**com/150**

Could you please tell me if this is a good thesis statement for an expository essay on the personal benefits and values that can be instilled from doing voluntary community service? The personal benefits and values that can be instilled from doing voluntary community service ...

*November 16, 2011*

**Physics **

When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.32 m/s2. A careless crewman overloads the helicopter so that it is just unable to lift off. What is the mass of the cargo?

*November 8, 2011*

**algebra**

You need to finish reading a 300-page book for English class. You have read 135 pages and have only 6 days left to finish the book. How many pages would you need to read each day?

*November 1, 2011*

**3rd grade math**

Explain how to compare 0.34 and 0.27?

*June 6, 2011*

**statistics**

Given 84 boxes of cereal with 22 high fiber,33 low fiber,and 53 high calorie. What is the probability of selecting a high calorie given high fiber? What is the probability of selecting a high calorie given low fiber?

*May 28, 2011*

**earth**

Can someone give me a better idea of Precipitation Variability? and the 4 types of atmospheric lifting, I'm confused and want to understand this better. Convective Lifting Orographic Lifting Frontal Lifting Convergent Lifting

*February 24, 2011*

**English 11H**

do it yourself

*February 5, 2011*

**science**

what are two types of forces that effect motion?

*February 3, 2011*

**algebra**

what is the height of a solid with a volume of 120 m3 and a base of 30 m2

*October 27, 2010*

**science**

what is the phsical layer of earth that is dividedunto tetonic plates is called the _____________

*October 4, 2010*

**accounting**

What are the different methods used to calculated depreciation? How does a company decide which method they should utilize? How does their choice affect the financial statements?

*October 1, 2010*

**algebra 1**

the number of students attending the Fall play was 150 more than the number of adults attending. Student tickets cost $3, and adult tickets cost $5. A total of $4730 was collected. How many students attend the play?

*September 21, 2010*

**chemistry**

What is the pH of a solution that is .200M in acid and .500 m in the corresponding salt if the weak acid ka= 5.0x10^-7

*September 2, 2010*

**chemistry**

Calculate the volume of 6.00 moles O2 gas at 30cm Hg and 72 degrees farenheit, thanks.

*August 8, 2010*

**trig 30**

Please help I need to solve the following question for x, where 0<x<2pi. and then write a general solution for the equation. The question is 2cos^2 x + cos x =1. I need to solve this using radian measurement. I solved it using algebra and was told I wasn't allowed. ...

*April 29, 2010*

**Math Probability**

A new shipment of 9 VCRs, which will be offered at a very low price, are delivered, Unknown to the manager, 4 of the VCRs are defective, Determine the probability that at least 1 of the first three VCRs sold is defective.Did I do this right? 1-5C3/9C3 =88.09% or do I do 1-(5/9...

*April 25, 2010*

**Math 30 Trig**

How do I find the x-intercept of the graph of y=3sin 2x? Could you explain the steps to put this into my graphing calculator to get the graph. Please and thanks

*April 25, 2010*

**Math **

A king couldn't sleep so, he devoured 1/6 of a bowl of mangoes. Later, the queen got hungry and took 1/5 of the bowl of mangoes. The prince awoke and ate 1/4 of the bowl of mangoes. After, he came back and ate another 1/3. Obviously, he was hungry and ate another 1/2. 3 ...

*April 7, 2010*

**Math 30**

How would I do this question. What sample size was needed to obtain an error range of 2% if the following statement was made. 75% of the workers support the proposed benefit package. The results are considered accurate to within + or- 2%, 18 times out of 20.

*March 28, 2010*

**5th grade**

Describe how proportions could be used to compare two products: If a 24-ounce can of pears sells for 1.90 and a 32 ounce can sells for $2.65, which one is the better buy?

*March 25, 2010*

**Math 30**

One of the terms in the expansion of (x+3)^7 is kx^5. How do I determine the value of k.

*March 21, 2010*

**math 12**

How do I find the asymptotes of (y-2)^2 - x^2/4 =1 The center is (0,2)

*March 17, 2010*

**Math 30 transformations**

The question says Draw the reflection of f(x)=sqrt x-2 in the line y=x which I done but now I need to write the equation of the reflection in the form of y=g(x). I'm not sure how to write this equation using this form. Could you please help. Thanks

*March 15, 2010*

**Math 30 Trig**

For the equation 4 cos theta - sqrt12 =0, where 0< theta < or equal 2pi determine the measure of theta. One answer I got was 2pi/3, 4pi/3 and another time it totally different 5 pi/6, 7pi/6. Are either of these right if not HELP!

*March 10, 2010*

**Algebra**

In case anyone's wondering: c= kg of cashews n= kg of nuts 12 kg of $8.5 is $102 We can say that: 8c + 10n = 102 (first equation) And also: c + n = 12 (second equation) We isolate a variable in the second equation: n = 12 - c Plug that into the first equation: 8c + 10(12...

*November 16, 2009*

**Grade 8 SCIENCE**

1. How is the vascular tissue in the stem different from the vascular tissue in the root? 2. Could you explain the relationships between seeds and fruits??

*October 20, 2009*

**BIBLE HWK**

Are there any specific answers?

*April 22, 2009*

**BIBLE HWK**

Why didn't God destroy Satan and his evil angels after Christ's death?

*April 22, 2009*

**American History**

I already did plenty of research and I know a lot about the topic. I really can't decide which side I support -- every time I read one explanation, it negates another, and I can't make up my mind. That's why I'm asking here for people who DO have opinions and ...

*February 6, 2009*

**American History**

I'm trying to write a term paper and get an A with as little effort as possible. Is it easier to write a paper that SUPPORTS Truman's decision to drop the A-bomb or REFUTES the decision?

*February 6, 2009*

**Piano lessons**

I have a daughter who is 4 years old. I would like her to learn how to play the piano. At what age should I sign her up for lessons? Thanks!

*January 12, 2009*

**algebra**

You have been offered a job and have two salary options from which to choose. You can be paid $500 a week plus 2% of all weekly sales, or you can be paid $300 a week plus 10% of all weekly sales. How much would you have to sell for the two methods to pay the same?

*December 14, 2008*

**Algebra 2**

You use Pathagoreans theorem. 5^2 + 4^2 = c^2 so 25+16=c^2 The answer is the square root of 41

*November 4, 2008*

**social studies**

Help with Vietnam School Project? For our project we have to do interviews with people and then present them in a cool way. For example in past years someone made a helicopter with cardboard and put the interviews inside it. Another made a battlefield with army men and ...

*November 4, 2008*

**math**

It is a fraction that you reduce 4:34 reduces to 2:17

*November 4, 2008*

**Chemistry**

What is Kc if [CO2]=[H2O]=0.01M and [C2H4]=[O2]=0.0001M

*October 25, 2008*

**Biology**

Okay, so in the Lab Assignment that I'm currently working on in AP Biology, there is a question that says: - What results would you expect if a dialysis bag were filled with glucose and iodine and then placed into a beaker of starch and water? Its a multiple choice ...

*October 22, 2008*

**Social Studies, 4th grade**

what are some physical features that make up a region?

*August 20, 2008*

**Algebra 2**

Thanks! So, is the degree the highest exponent? For some reason, I keep thinking it's five. But, I might be wrong.

*November 5, 2007*

**Algebra 2**

The Question(s):: Write the polynomial 2-2x+5x^2-2x^5 in standard form. a.) What is its degree? b.)What is the leading coefficient? I missed this lesson in class. It's very confusing. Could someone please explain what to do? Much appreciated, Rae

*November 5, 2007*

**Algebra**

|4-6^2/2| - |-6| Solve for the exponent. |4-36/2| - |-6| Use PEMDAS and dicide by two. |4-18| - |-6| Since everything in the absolute value is positive, you solve. |-14| - |-6| 14 - 6 = ___

*November 5, 2007*

**Writing**

Im doing an essay and Im going to write the name of a school. what do i put around it, quotation marks or capitalize it or underline the name?

*August 23, 2007*

**Science**

What are the properties of plasma? I brought home the wrong school book and of course I forgot what the properties were. Thanks loads for the help. http://en.wikipedia.org/wiki/Plasma_(physics) Thanks a lot, it really helped. Next time Iwill pay attention to which book I grab.

*April 9, 2007*

**Math**

If you get to pick a shape of a 20 mile perimiter what shape would be most efficient and why The shape's efficiency is determined by what you define efficency as: If you were trying to enclose the maximum area, a circle. If you were trying to plow with a tractor, a long ...

*August 20, 2006*