Saturday

January 21, 2017
Total # Posts: 644

**Math**

If the shadow of a 45 foot building is 60 feet long what time of day is it?

*January 16, 2017*

**Geometry**

The Varignon parallelogram of the Varignon parallelogram of quadrilateral ABCD is a 3*4 rectangle. Find AC+BD. I don't understand the Varignon parallelogram, so solving this problem is difficult.

*January 15, 2017*

**Algebra**

Yay thank you

*January 13, 2017*

**Algebra**

Write an inequality for the word sentence: k is less than zero. A. k > 0 B. k ? 0 C. k < 0 •••• D. k ? 0

*January 13, 2017*

**Maths**

A coat cost 84 pounds It's price is reduced by 10 percent in a sale What is the sale price of the coat?

*December 13, 2016*

**Math**

In simplist form why is 2^2/2^5 a fraction

*December 13, 2016*

**probability**

The population of 1500 construction trucks has load distributed normally with 6 tons and the standard deviation of 1 ton, find the probability that its load greater than 7

*December 13, 2016*

**History**

Why is urbanization associated with the industrial revolution? The expansion of family farms refocused the nation on agriculture •• The concentration of factories in cities brought job opportunities Settlers expanded the frontier west of the Mississippi River ...

*November 28, 2016*

**math**

12, ?9, 6, ?3, .. whats the arithmetic function?

*November 10, 2016*

**math**

volume/area.

*October 27, 2016*

**math**

Which of the images above represent a proof of the Pythagorean Theorem? Explain your choice, and then explain how the figure proves the Pythagorean Theorem. Figure A: Leg a= 9 units (length) Leg b= 36 units (bottom) Leg c= 64 units (diagonal length) Figure B: Leg a= 25 units (...

*October 27, 2016*

**Social studies**

what was one strength of the articles of confederation? A. It allowed states to make decisions for themselves. B. it gave the federal government power to impose taxes.•• C. It gave congress the authority to overturn decisions made by the president. D. It provided ...

*October 11, 2016*

**Math**

(4y to the fifth power) to the fifth power

*September 28, 2016*

**chemistry**

how many grams of barium would be found in 1.72g of barium sulfate 1.72(137.3/233.4)

*September 25, 2016*

**chemistry**

How many GRAMS of carbon dioxide can be produced from 3.70 grams of oxygen ?

*September 24, 2016*

**Math**

What is the sum of the first 60 odd numbers?

*September 19, 2016*

**Math**

China population is approximately 1.325 billion. The United States has approximately 0.304 billion. How many times as many people live in China than in the U.S. Round to the nearest tenth if necessary.

*September 9, 2016*

**Math**

I would say it would be 62|352 😊😊

*September 9, 2016*

**Math**

When you have a 76% in math and you need to get your grade up to a b and daily assignments are 10% and quizzes are 80%. How will I get my grade up to a b in 5 weeks

*August 26, 2016*

**Algebra**

A club has 4 members. From these members, the positions of president, vice-president, and treasurer have to be filled. In how many different ways can these 3 positions be filled?

*June 20, 2016*

**Algebra**

A 12ft tall building casts a shadow. The distance from the top of the building to the tip of the shadow is 18 ft . Find the length of the shadow.

*June 20, 2016*

**Math**

∆ABC has the points A(1, 7), B(-2, 2), and C(4, 2) as its vertices. The measure of the longest side of ∆ABC is units. ∆ABC is triangle. If ∆ABD is formed with the point D(1, 2) as its third vertex, then ∆ABD is triangle. The length of side AD is ...

*June 17, 2016*

**Biology**

Describe the traits that distinguish animals from other organisms Explain the diversity of invertebrates, chordates, and primates using the theory of evolution Describe the structures and body systems of animals that allow them to maintain homeostasis Describe the structures ...

*May 16, 2016*

**US HISTORY**

1. yes 2. i think is B but you might be right

*May 11, 2016*

**Language Art**

3. Which of the following quotes from the text best reveals Windrider's approach to living? A- "I don't know much about being a father." B- "It's hard to put things to a letter, especially when the letter is read to your family by another person.&...

*May 10, 2016*

**Algebra**

Make a box-and-whisker plot to represent each set of data. 13. Movie ratings: 1 4 1 2.5 3 2 3.5 2 3 1.5 4 2 41 1 3 4.5 15. Camera prices: $280 $220 $224 $70 $410 $90 $30 $120

*May 7, 2016*

**Criminal Investigation**

@Writeacher I don't know the answer to these three questions and I can't find it in my book.

*May 7, 2016*

**Criminal Investigation**

Safety precautions that should be observed in searching for a booby trap? What significance does a fire’s point of origin have regarding the investigation of a suspected arson fire? Discuss and compare the relationship between fire and police departments and the insurance...

*May 7, 2016*

**Chemistry**

Suppose the osmotic pressure of blood at 37 °C is 7.65 atm and you are preparing an intravenous (IV) NaCl solution for a patient. What concentration (in M) of NaCl solution should you prepare so the resulting IV solution is isotonic with blood, if the van’t Hoff ...

*May 2, 2016*

**Art**

Nvm, it's B :D

*May 2, 2016*

**Art**

What message was the designer of this hamburger ad hoping to send with the catchphrase homestyle? This burger will allow you to experience new exotic tastes. This burger will taste as good as one you would make with the family. this burger is your best bet for a quick tasty ...

*May 2, 2016*

**Chemistry**

Suppose the osmotic pressure of blood at 37 °C is 7.65 atm and you are preparing an intravenous (IV) NaCl solution for a patient. What concentration (in M) of NaCl solution should you prepare so the resulting IV solution is isotonic with blood, if the van’t Hoff ...

*May 1, 2016*

**Math**

Is -49 rational or irrational

*April 21, 2016*

**math algebra**

An employee's new salary is $18,165 after getting a 5% raise. What was the salary before the increase in pay?

*April 19, 2016*

**essay**

does March change by Geraldine brooks

*April 17, 2016*

**Social Studies**

3. Which type of judgeship has the least restrictive qualifications? 4. Which types of judgeships are elected statewide and which are elected countywide?

*April 15, 2016*

**math**

What is the minimum value of the expression 2x^2+3y^2+8x-24y+62 for real x and y?

*April 14, 2016*

**English**

Thanks, I guess I should of thought of that, but I was correct :)

*April 13, 2016*

**English**

My answer is A.

*April 13, 2016*

**English**

Which statement from "Zoos: Joys or Jails?" best captures the author's point of view? "At the zoo they are treated with care, but they should be treated with reverence." "Animals behave differently than they would in their natural surroundings.&...

*April 13, 2016*

**Algebra 2**

Use summation notation to write the series 2+4+6+8 for 10 term in each of these images, the lower limit of the summation notation is either n=1, or n=0

*April 13, 2016*

**Algebra 2**

Is there a common ratio for the geometric sequence and what are the missing terms? 2, -4, -16, -36..

*April 13, 2016*

**Math**

Thank you @Reiny

*April 13, 2016*

**Math**

Is there a common ratio for the geometric sequence and what are the missing terms? 2, -4, -16, -36..

*April 13, 2016*

**math**

What are the coordinates of the points where the graphs of f(x)=x^3-x^2+x+1 and g(x)=x^3+x^2+x-1 intersect? Give your answer as a list of points separated by semicolons. (So "(1,-3); (2,3); (5,-7)" is a valid answer format.)

*April 12, 2016*

**Math**

What is the sum of all values of k such that the equation 2x^2-kx+8=0 has two distinct integer solutions? Thank you for your help! :)

*April 11, 2016*

**Math**

The equation y=-4.9t^2+3.5t+5 describes the height (in meters) of a ball thrown upward at 3.5 meters per second from 5 meters above the ground. In how many seconds will the ball hit the ground? Express your answer as a common fraction. Thank you for your help!

*April 11, 2016*

**Math**

A 2009 by 2009 square has its length decreased by 50 and its width increased by 50. By how much does its area change? Thank you for your help!

*April 11, 2016*

**Graphing Quadratics**

Thank you! :)

*April 9, 2016*

**Graphing Quadratics**

For the graph of a certain quadratic y = ax^2 + bx + c, the vertex of the parabola is (3,7) and one of the x-intercepts is (-2,0). What is the x-coordinate of the other x-intercept? Thank you for helping me :D

*April 9, 2016*

**Statistics Math**

There are 3 men sitting in a row facing the same way. Their names are A,B, AND, C. a hat has been placed on their heads without them seeing their own or anyone else's. A can see B and C, B can see only C, C sees none. The game goes as follows: (it can have 1,2,3 quest.) A ...

*April 7, 2016*

**chemistry**

0.5g Al has a lower reactant

*March 31, 2016*

**Science**

Okay! So it's True then, correct?

*March 23, 2016*

**Science**

is it false?

*March 23, 2016*

**Science**

True or False? Energy is measured in Newtons?

*March 23, 2016*

**Social Studies**

Yay! I wasn't sure so I wanted to check. Thank you so much

*March 3, 2016*

**Social Studies**

1. Which of the following has made flooding worse in the Koreas? A. lack of tree covers** B. lack of crops C. too many droughts D. too many dams 2. What is the most important agricultural product in Japan and the Koreas? A. corn B. rice** C. soybeans D. wheat 3.In which of the...

*March 3, 2016*

**Geography**

which adaptation to southeast asia's geography has been most successful? a)skyscrapers allow everyone to have plenty of space to live and work. b) Earthquake safety alerts have saved many lives during earthquakes <---- c) Terrace farming helps people grow all of the ...

*March 2, 2016*

**science**

You don't say rue, I say rue, RUE

*February 29, 2016*

**Maths**

y = 2[cos1/2(f1 - f2)x][cos1/2(f1 + f2)x] let f1 = 16 let f2 = 12 therefore y = 2[cos1/2(16 - 12)x][cos1/2(16 + 12)x] y = 2cos(2x)cos(14x) derive y = 2cos(2x)cos(14x) y' = 2[-2sin(2x)][-14sin(14x)] is all of this correct? Additionally, I am unsure how you would derive the ...

*February 27, 2016*

**Math**

But then again, it's asking for the lowest rate per MINUTE.

*February 23, 2016*

**Chemistry**

to make a sodium chloride solution of the same molarity as household bleach (as determined in question 1) how many grams of salt would be needed for every 100 ml of solution question 1 answer: 0.871 M

*February 7, 2016*

**Math - Algebra I**

Consider the subsets of R defined as follows: An is the interval (0,1/n) for all natural numbers. Show that: U (union) n=1 to infinity of An = (0,1) Here's what I tried as a proof: Show that (0,1) is a subset of U n=1 to infinity An Take an arbitrary real number a in (0,1...

*February 7, 2016*

**English**

What???????

*January 9, 2016*

**English**

What is number 4

*January 9, 2016*

**history**

nvm i understand now

*January 6, 2016*

**history**

no plz gve me ideas

*January 6, 2016*

**history**

What has made the United States so attractive to peoples from other nations over the years? i will like to have a paragraph plz.

*January 6, 2016*

**English**

I need help Can u tell me the meaning MEDIA IS THE NERVOUS SYSTEM OF OUR CULTURE plz tell me what it means

*January 6, 2016*

**history**

she made a school that Black Americans can go to and also, for being an important influence on the president and making a difference in Black Americans' lives.

*January 6, 2016*

**history**

I cant see why she s a hero.

*January 6, 2016*

**history**

How is Mary McLeod Bethune a hero?Please no links and please at least 8-10 sentences.

*January 6, 2016*

**help**

What makes you comfortable at home? give at least 5 sentences What would scare in a foreign land? give at least 5 sentences

*January 5, 2016*

**history**

If i was forced to live far away from my homeland i wouldnt be happy because their taking me away from where i feel most comfortable at.I will also be mad because i wouldnt know where ill live but i need to write three paragraphs

*January 5, 2016*

**history**

If you were forced to live far away from your homeland, how would you react to your situation? Explain your reaction.

*January 5, 2016*

**English**

The class was asked to sit: b. quietly anywhere.

*January 4, 2016*

**Algebra 1**

You are welcome

*January 4, 2016*

**Algebra 1**

cookies = x brownies = y 2x + y = 2.25 y = 2.25 - 2x 4x +3y = 5.75 its $0.50 per cookie and $1.25 per brownie

*January 4, 2016*

**Geography (Ms.Sue ) Help**

The dominant physical-geographic feature is A. ascending plateaus.

*January 4, 2016*

**History**

Do you know how she made the USA a safe place to live

*January 4, 2016*

**History**

How did ruby bridges make the USA a safe place to live,work,and raise a family

*January 4, 2016*

**Math**

Jana is taking pledges for a bike-a-thon fundraiser. Ivan pledged $4.25,plus $1.25 for each mile that Jana bikes. Vicky pledged $5.75,plus &0.75 for each mile that Jana bikes. (Part A)- write expression for the number of dollars Ivan pledged and the number of dollars Vicky ...

*January 3, 2016*

**Math**

Im trying to find out what the value of this equation is: x^37+ x^31 + x^47+ x^26+ x^63+ x^9 + 6. By using the fact that (x + 1/x) ^2 = 3

*January 2, 2016*

**science**

a trait developed through learning is a ?

*November 20, 2015*

**science**

A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.75 m above the bottom of the chute and with an initial speed of 1.07 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding along a horizontal surface ...

*November 19, 2015*

**Algebra 2**

Can someone please help me solve this absolute value equation? The equation is: -4|t-2|-9=-37 The thing I don't understand is how to isolate the absolute value (t-2). Do I divide both sides by -4 and then add both sides by -9? In that case I would get |t-2|= 73/4

*October 27, 2015*

**jms**

When solving problems, which of these is performed before the others? A. Multiplication B. Addition C. Exponents D. Subtraction

*October 5, 2015*

**math**

OK thanks so much! :D

*October 5, 2015*

**math**

What is 45/100 in its simplest form? 9/20 And how do I divide fractions on a calculator?!

*October 5, 2015*

**math**

A length of ribbon is 3 1/2 yd long. How many pieces 1 5/9 yd long can Joy cut from the ribbon? 1 2 3 4 Which number is equivalent to 0.45? 1/45 5/11 4/5 1/4 What is 3.56 x 10 *5 in standard notation? 356,000 3,560,000 0.00356 0.0000356 Ms. Johnson's class is having a ...

*October 5, 2015*

**Math help please?! :)**

Ok no wait I get it... I had to read it a few times but I got it! thanks So what about the first one?!

*October 5, 2015*

**Math help please?! :)**

I still kind of don't get it... sorry! :,(

*October 5, 2015*

**Math**

How is parital prouduct and regrouping methods are alike and different from eachother

*September 16, 2015*

**math**

Am i correct? 90° ferenhight = 33° celcious

*August 31, 2015*

**Chemistry**

All Brønsted-Lowry acids A. are aqueous solutions. B. can act as Arrhenius acids. C. donate protons. D. all of the above I think it is D, but I also think it is c can you please tell me if either of these answers are right thanks

*August 11, 2015*

**Chemistry**

All Brønsted-Lowry acids A. are aqueous solutions. B. can act as Arrhenius acids. C. donate protons. D. all of the above I am a little confused. I think it is D, but I'm second guessing myself with C

*August 11, 2015*

**physics**

two charges, -16uC and +4uC, are separated by three meters. a) Where along the line through the charges is the electric field zero? b) What is the force on a 14uC charge place there? uC = microCoulombs for a), would it be 16+ -4? Thank you!

*July 29, 2015*

**physics**

never mind! I got it! =) thanks guys!

*July 5, 2015*

**physics**

A rifle fires a 2.11 10-2-kg pellet straight upward, because the pellet rests on a compressed spring that is released when the trigger is pulled. The spring has a negligible mass and is compressed by 8.37 10-2 m from its unstrained length. The pellet rises to a maximum height ...

*July 5, 2015*

**physics**

An 0.90 kg object is attached to one end of a spring, and the system is set into simple harmonic motion. The displacement x of the object as a function of time is shown in the drawing. With the aid of these data, determine the following values. I got a,b,d,e right. for C, I ...

*July 4, 2015*