Monday

September 26, 2016
Total # Posts: 99,980

**Chemistry**

The data below was collected while performing a titration of acetic acid (in vinegar) to determine its concentration using sodium hydroxide. 150 ml of vinegar with unknown molarity 45.5 ml of .5 M NaOH was added to reach equivalence point Find the molarity of the vinegar.

*May 16, 2016*

**The Giver**

Can someone help me please.

*May 16, 2016*

**The Giver**

The giver. Which of the following words best describe the cultural context of the community? A. Utopian B. dystonian C. democratic D. religious I believe it A

*May 16, 2016*

**Chemistry **

A student mixes 675 mL of water and 256 mL of 3.30 x 10-5 M orangefood dye solution. What is the concentration of this new dilute solution of orange food dye?

*May 16, 2016*

**soil and palnt analysis**

Acidic soil sample collected from HagreSelam location of southern Ethiopia was analysed in the laboratory had exchangeable Al content of 4.5 meq/100 gram of soils and its bulk density was found to be 1.25 g/cm3. Based on this information calculate the amount of lime required ...

*May 16, 2016*

**mathematics**

what is the perimeter of the following numbers: 4cm,2cm,7cm,6cm,12cm,4cm.

*May 16, 2016*

**Math**

A 6m ladder is leaning against a wall. The base of the ladder is 1.5m from the wall. Calculate the angle (to the nearest tenth) formed between the ladder and the ground.

*May 16, 2016*

**Natural Sciences**

In sulphur trioxide(SO3) there are how many oxygen atoms and how many sulfur atom's.

*May 16, 2016*

**8th Grade Electives Advice**

Probably journalism because I'm not very artistic. The teachers I had for language arts over the years always said that I'm a very good writer.Also, a lot of people said that I take really nice pictures that's why I was struggling. Well, thank you for your help and...

*May 16, 2016*

**8th Grade Electives Advice**

Hi, I'm really struggling with my decision about two electives that I really like. One is Journalism and the other is Creative Photography. If anyone knows or has experience can you please tell me the pros and cons about these two electives please? Also, I only have a few ...

*May 16, 2016*

**math**

Find the sum of the first one thousand positive integers. Explain how you arrived at your result. Now explain how to find the sum of the first n positive integers, where n is any positive integer, without adding a long list of positive integers by hand and without using a ...

*May 16, 2016*

**Commerce**

suggest two ways on how the geographical distribution of media can be improved in south africa

*May 16, 2016*

**Chemistry**

22.25

*May 16, 2016*

**LA, The Giver**

Thanks

*May 16, 2016*

**LA, The Giver**

Why does Jonas share a memory with Gabriel? A. He is trying to calm the baby and lull him back to sleep B. He is eager to transmit his experiences to a member of the community C. He does not think anything is wrong with sharing his memories D. He feels it is his duty to ...

*May 16, 2016*

**Spanish**

Do you go to Connections? If so, go to Unit 10 Lesson 2 Page 3 and that page gives you all the information you need for that question.

*May 16, 2016*

**Spanish**

Most likely this is your Spanish semester exam I would take what help I can get if I were you.

*May 16, 2016*

**Math**

The number is 13 less than the other. The other number is three fourths the first. What is the smaller number?

*May 16, 2016*

**math**

Farah, Kate and Jane have managed their savings well. The sum of Farah and Kate's savings is $1548. Farah and Jane's savings sum up to $1842. The ratio of Kate to Jane's savings is 4 : 7. How much has Farah saved?

*May 16, 2016*

**Chemistry**

Inflating a balloon requires more pressure than the pressure of the atmosphere outside of the balloon, in order to compensate for the stretchiness of the balloon’s material. Would you need more or less gas to compensate? (Hint: Consider the ideal gas law equation. How ...

*May 16, 2016*

**computer programming**

make a program that will input 6 numbers abd output the highest number and lowest number

*May 15, 2016*

**computer programming**

make a program that will input 6 numbers abd output the highest number and lowest number

*May 15, 2016*

**Integral calculus**

Use the cylindrical shell method to find the volume of the solid generated by revolving the area bounded by the given curves (x-3)^2 + y^2 = 9, about y-axis.

*May 15, 2016*

**Math**

I got 21 years and it was wrong. Can you help me solve this problem? sometime ago, julie purchased 11 acres of land costing $15,590. Today, that land is valued at $55,433. How long had she owned this land if the price of the land has been increased at 5% per year?

*May 15, 2016*

**science**

A gaseous compound containing carbon and hydrogen was analyzed and found to cons ist of between 80 and 90 percent carbon by mass. At 145ºC and 1.00 atm, the density of this compound is 2.45 g/L. What is the molar mass of the compound?

*May 15, 2016*

**ela please help me**

shush up Mrs sue. Zachary was right

*May 15, 2016*

**adult education**

An oblique collision occurs between two objects with a similar rectangular shape (1m x 0.2m) as shown below. The first object has a mass of 10 kg and is initially traveling at 4 m/s. The second object has a mass of 6 kg and is initially at rest. The impact point, P, is 0.4 m ...

*May 15, 2016*

**Chemistry**

A solid at room temperature that can conduct electricity

*May 15, 2016*

**Geometry**

So the next questiona asks to determine the ratio of the volumes so would I do (2/5)^3 and get .064 or 8/125?

*May 15, 2016*

**Geometry**

So it would be 4/25?

*May 15, 2016*

**Geometry**

two similar solids have corresponding lengths in the ratio 2:5. Determine the ratio of the lateral area

*May 15, 2016*

**Geometry**

The lateral area of a cylinder is 28 pi in^2. All of the dimensions are changed by the same factor and the new lateral area is 448 pi in^2. What was the dimensional factor change

*May 15, 2016*

**math**

An ancient Korean drinking game involves a 14-sided die. The players roll the die in turn and must submit to whatever humiliation is written on the up-face: something like "Keep still when tickled on face." Six of the 14 faces are squares. Let's call them A, B, C...

*May 15, 2016*

**math**

I am not sure of your formulat .02 times 10 raised to the 1.5 power and that is multiplied times 6.4/.02 now is that whole fraction multiplied times 10 raised to the 1.5x? If x is in the numerator when dealing with base 10, you will begin by taking the log of everything. and ...

*May 15, 2016*

**Math**

I agree!!

*May 15, 2016*

**Algebra 2**

you need to raise both sides to the 4/3 power that makes 8 raised to the 4/3 which means to find the cube root of 8 which is 2 then raise 2 to the 4th power = 16 4/3 times 3/4 = 1 so the power on x-3 is just one 16 = x-3 19 = x Check by going back to the original problem and ...

*May 15, 2016*

**Algebra**

replace t with 60and find l(t) replace l(t) with 140 and take the ln of both sides to solve for t.

*May 15, 2016*

**life orientation**

name the human right violation and explain at least two example of such violations you found

*May 15, 2016*

**math**

I am a two digits number.my first number is equal to 7 and than 13. The second digit is number between 1 and 9 .what is the number

*May 15, 2016*

**Pre-Calc**

Write the first five terms of the sequence. a(n) = ((-1)^n x^(2n + 1))/(2n + 1)! Not sure about how to deal with the x here. Will it just remain in the sequence?

*May 15, 2016*

**math**

The variables x and y vary inversely. When y is 24, x is 8. What is y when x is 4?

*May 14, 2016*

**PLZ HELP I NEED HELP ASAP**

The units’ digit of a two-digit number is 7 more than the tens’ digit. If 26 is added to the number, the result obtained is five times the sum of the digits. Find the number.

*May 14, 2016*

**PLZ HELP I NEED HELP ASAP**

Paula, Dianna and Annie are three friends. Paula is twice as old as Dianna, and in 2 years she will be three times as old as Annie. If Dianna is 5 years older than Annie, how old is Paula?

*May 14, 2016*

**Math help.**

What are the solutions to the systems? y=x^2+6x+7 y=-x+13 A. (-1,14) and (6,7) B. (-1,7) and (6,14) C. (-1,13) and (6,7) D. No solution I think its D.

*May 14, 2016*

**Pre-Calc**

If five girls and five boys stand in a circle, how many arrangements are possible provided they stand alternately (girl, boy, girl, boy, etc)?

*May 14, 2016*

**Algebra**

Solve for t: t^6=8-t^3

*May 14, 2016*

**Physics **

A net force of 20N acts on a 5kg object.Determine how far the object travels starting from rest to acquire a speed of 8m/s

*May 14, 2016*

**math**

15

*May 14, 2016*

**Algebra**

What is the value of m, if the equation my^2+2y−4=0 has exactly one root?

*May 14, 2016*

**math (PLZ HELP ASAP)**

Paula, Dianna and Annie are three friends. Paula is twice as old as Dianna, and in 2 years she will be three times as old as Annie. If Dianna is 5 years older than Annie, how old is Paula? please use algebra to justify your answer.

*May 14, 2016*

**Math**

Find g(2) – f(2) Use f( x ) = 2x – 1 and g( x ) = x + 5

*May 14, 2016*

**Math**

f( x ) = 3x + 5 and g( x ) = -x + 9 Find: f( x ) – g( x )

*May 14, 2016*

**math (pLZ HELP ASAP)**

how to crank it out

*May 14, 2016*

**math (pLZ HELP ASAP)**

The units’ digit of a two-digit number is 7 more than the tens’ digit. If 26 is added to the number, the result obtained is five times the sum of the digits. Find the number.

*May 14, 2016*

**math (PLZ HELP ASAP)**

thanks

*May 14, 2016*

**math (PLZ HELP ASAP)**

The students asked their math teacher to tell them her age. She didn’t want to tell them, but she replied, “If you take two years from my present age the result will be three times my son’s age, and seven years ago my age was twice what his will be in two years...

*May 14, 2016*

**math**

You own two restaurants. From 1995 to 2000, the sales R1 (in thousands of dollars) for one restaurant can be modeled by: R1 = 480 – 8t – 0.8t2, t = 0, 1, 2, 3, 4, 5, where t = 0 represents 1995. During the same 6-year period, the sales R2 (in thousands of dollars) ...

*May 14, 2016*

**Functions Math**

A car has 16 gallons of gasoline in its tank when it starts it's journey. On a long highway trip, gasoline is used at a rate of about 2 gallons per hour. The gallons of gas, "g", remaining in the car’s tank after "t" hours can be modeled by the ...

*May 14, 2016*

**geometry**

quadrilateral ABCD is a trapezium iff its diagonals intersect each other in the same ratio .proof this

*May 14, 2016*

**science**

give five application of Doppler effects

*May 14, 2016*

**math**

there are 28 students in a class. 16 of them are boys. What is the percentage of girls in the class?

*May 13, 2016*

**PLZ HELP ASAP math**

plz help

*May 13, 2016*

**PLZ HELP ASAP math**

help plz asap

*May 13, 2016*

**PLZ HELP ASAP math**

help

*May 13, 2016*

**PLZ HELP ASAP math**

how to i crank it out?

*May 13, 2016*

**PLZ HELP ASAP math**

Paula, Dianna and Annie are three friends. Paula is twice as old as Dianna, and in 2 years she will be three times as old as Annie. If Dianna is 5 years older than Annie, how old is Paula?

*May 13, 2016*

**Math**

My answers are: 1. d 2. b

*May 13, 2016*

**Math**

1. Which of the following is an example of a dependent event? (1 point) flipping two coins rolling a number cube and spinning a spinner choosing two scoops of ice cream choosing a cookie at random, eating it, and then choosing another at random** 2. Which of the following is ...

*May 13, 2016*

**Statistics Mean and Median Question**

Find the mean by adding all of the numbers and divide by 20.

*May 13, 2016*

**Math**

Thank you

*May 13, 2016*

**Math**

What are equal intervals? I have a math question that deals with them but I don't what they are.

*May 13, 2016*

**Math**

thanks

*May 13, 2016*

**Math**

Can someone help me?

*May 13, 2016*

**Math**

Divide (x^2+2x+ over x^2-8x+16) over(x+1 over x^2-16) A. (x-1) (x+4)over x+1 B.(x+1)(x+4)over (x-4) C. (x+1)(x+4)over (x-1) D.(x-1)(x-4)over (x+4)

*May 13, 2016*

**Life orientation**

Human rights violations

*May 13, 2016*

**Math**

Thanks

*May 13, 2016*

**Math**

Thats not on my answer. Here they are. A.5x+7/(x+2)(x+9) B.5/(x+2)(x+9) C.7/(x+2)(x+9) D.5x+52/(x+2)(x+9)

*May 13, 2016*

**Math**

Simplify into one fraction. 6/x+2-1/x+9

*May 13, 2016*

**Math**

Solve the IVP: y' = y + y^3 , y(0)=1

*May 13, 2016*

**life orientation**

Bcz ur experiencing this

*May 13, 2016*

**math**

Classify the triangle with sides of lengths 24, 24, and 4

*May 13, 2016*

**Pre-Calc**

Find the sum of the series 1 + 2 + 4 + 5 + 7 + 8 + 10 + 11 + ... + 299, which is the sum of the integers from 0 to 300, omitting the multiples of 3.

*May 13, 2016*

**math**

A friend drives 15 miles west and then 5 miles east. How far away is she from her starting point?

*May 13, 2016*

**math**

Find the image of (3,6) reflected across the y-axis

*May 13, 2016*

**math**

Five children in the Woods family have decided to purchase an anniversary gift for their parents. They estimate the price of the gift to be $170. Each person has already contributed $10. If they have eight weeks to raise the rest of the money, how much will each child have to ...

*May 13, 2016*

**Pre-Calc**

Tritium, a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 69 grams, how much will remain after 75 years?

*May 12, 2016*

**Pre-Calc**

An initial investment of $9000 grows at an annual interest rate of 5% compounded continuously. How long will it take to double the investment?

*May 12, 2016*

**science 4th grade**

What is the property of matter that keeps a moving object in a straight line called

*May 12, 2016*

**Math**

24

*May 12, 2016*

**Math, Algebra**

81^3(x+1)=9^2(x-1) Solve this equation by expressing both sides as powers of 3.

*May 12, 2016*

**Math, Algebra**

81^3(x+1) = 9^2(x-1) Solve this equation by expressing both sides as powers of 9.

*May 12, 2016*

**Math, Algebra**

81^3(x+1)=9^2(x-1) Solve this equation by expressing both sides as powers of 3.

*May 12, 2016*

**Science**

i need help with this too

*May 12, 2016*

**Geometry **

A triangle pyramid with a base area of 18 square inches and a height of 15 inches...

*May 12, 2016*

**Math**

a cake is cut into 12 equal pieces. there are 7 children and each child eats 1/3 of a piece

*May 12, 2016*

**math**

A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous bounce. After which bounce will the ball rebound to a maximum height of 1 ft?

*May 12, 2016*

**math**

John leaves on a 20-mile bike trip. He rides at a speed of 8 mile per hour. Ashley leaves 1 hour later. Both bikers take the same route. Ashley rides at a speed of 6 miles per hour. How many later than John will Ashley complete the trip?

*May 12, 2016*

**math**

Thank you $266, is this correct?

*May 12, 2016*