Sunday

October 4, 2015
Total # Posts: 85,408

**maths**

draw the graph of equation y=x+2
*May 28, 2015*

**Science (theory of evolution)**

How would a scientist use DNA or protein sequences taken from three different organisms to construct a cladogram.
*May 27, 2015*

**Algebra 1**

x/(x^2 - 9) - x/(x + 3) + 3/(x - 3) The common denominator is (x^2 - 9). Note that x^2 - 9 = (x + 3)(x - 3). Rewriting, = x/(x^2 - 9) - x(x - 3)/(x^2 - 9) + 3(x + 3)/(x^2 - 9) Combine all the terms in the numerator, = ( x - x(x - 3) + 3(x + 3) ) / (x^2 - 9) = (x - x^2 + 3x + ...
*May 27, 2015*

**FIN 4018 - INCOME TAX PLANNING**

Jim acquired a house in 2011 for $400,000. In 2013, he acquired a cottage for $150,000. He lived in the house in the winter and in the cottage in the summer. In 2015, he sold both properties. He received $500,000 for the house and $250,000 for the cottage. The sales commission...
*May 27, 2015*

**science **

How would a scientist use DNA or protein sequences taken from three different organisms to construct a cladogram.
*May 27, 2015*

**reading comprehension**

what happens on the 4th of July comprehension passage
*May 27, 2015*

**Pychology**

Mrs. Collins, the principal, was holding an assembly on the school’s policies and procedures. After she discussed the policy of graduation, everyone cheered loudly. Tara looked around and noticed that several of her classmates did not clap. She began to laugh to herself ...
*May 27, 2015*

**1 st grade math**

Thank you
*May 27, 2015*

**Evolution/Biology**

What does the statement "The environment directs natural selection" mean?
*May 27, 2015*

**Biology**

with an example of the peppered moths when they changed color from light to dark due to pollution, what selection pressure is this? disruptive, stabilizing or directional?
*May 27, 2015*

**Algebra 2**

Graph the inequality y < –|x – 4|. Which point is NOT part of the solution?
*May 27, 2015*

**Chemistry**

okay thank you! 12.5 is correct
*May 27, 2015*

**Chemistry**

I'm not exactly sure how you do the first step. Are you using the 2.5 L from a? So would the answer to c be 62.5 L? ? L O2 = 1.00 L x 1 mol/22.4 L x 25 mol O2/2 mol C8H18 x 22.4 L/1 mol O2 = 12.5 L O2 ?L air = 12.5 L (5) =62.5 L air
*May 27, 2015*

**Chemistry**

If air is 20% oxygen, and the reaction is 2C2H2 + 5O2 --> 4CO2 + 2H2O, What volume of oxygen would be needed to completely burn 1.00 L of acetylene (C2H2)? I got 2.50 L but I'm not sure it's right. What volume of air would be needed to completely burn 1.00 L of ...
*May 27, 2015*

**Math**

But that equation has a directrix of y = -1.
*May 27, 2015*

**Math**

Write an equation for the parabola with focus (0, 0) and directrix y = 1. I got -x^2 - 2y + 1, but how do I get it in the form y - k = 1/4p(x - h)^2?
*May 27, 2015*

**math**

When a pendulum swings 35degree from the vertically, the weight moves 15cm horizontally and 5.3 vertically. The length of the pendulum?
*May 27, 2015*

**Math**

Write an equation in standard form for each parabola. Vertex (0, 0) and directrix y = 6. y = -1/24x^2?
*May 27, 2015*

**Language Arts**

Never mibnd i got it :)
*May 27, 2015*

**Language Arts**

What is one conflict that represents a cause and effect relationship in the story dragon wings.
*May 27, 2015*

**precal**

a man is driving his motor boat at 12 mph travelling N 30 E. The river currents are flowing due East at 8 mph. (A) express the true velocity of the motorboat as a vector. (B) what is the true speed of the motorboat? (C) What is the true direction of the motorboat?
*May 27, 2015*

**precal**

a man is driving his motor boat at 12 mph travelling N 30 E. The river currents are flowing due East at 8 mph. (A) express the true velocity of the motorboat as a vector. (B) what is the true speed of the motorboat? (C) What is the true direction of the motorboat?
*May 27, 2015*

**college major**

it is a math major
*May 27, 2015*

**college major **

can you major in operations research and be ok in math. (not great)?
*May 27, 2015*

**precal**

eliminate the parameters of the parametric equations x=3+6 cos t and y= 6+6 sin t
*May 27, 2015*

**chemistry**

Balance the redox reaction of eq. Cu2S + SO4(-2) gives CuO + SO2 (Acidic )
*May 27, 2015*

**History...Please check my answers.**

Thank you Reed. OK. I think #1 is B. I studied this and know that the women were active in antislavery because they believed it was their duty to help society. get the right to vote, would also help women's rights later. That's why I chose "A" earlier. I ...
*May 27, 2015*

**science**

Why does a light go out when you turn off the wall switch? A. The switch changes the direction of the flow of electrons. B. The switch causes a break in the circuit. C. The switch changes the circuit from series to parallel. D. The switch absorbs the electrical energy.
*May 26, 2015*

**Spainsh**

Paragraph about a party using imperfect and perterite
*May 26, 2015*

**XXX**

The answer is actually 30.
*May 26, 2015*

**Science (theory of evolution)**

^^^ thank you that has helped out so much!!!
*May 26, 2015*

**Science (theory of evolution)**

How has the fossil record support the theory of evolution?
*May 26, 2015*

**Science (theory of evolution)**

How has the genetic code support the theory of evolution?
*May 26, 2015*

**DragonWings LA**

?? answers are all correct
*May 26, 2015*

**DragonWings LA**

does anyone know if ?? is right?
*May 26, 2015*

**Math**

Three friends are planning to visit each other. To optimize travel time, they want the meeting place to be equidistant from the three different cities they live in. The cities are located at A(-16, -1), B(1, 6), and C(1, -18). What are the coordinates where the meeting should ...
*May 26, 2015*

**Life orientation**

List and discuss any four factors that could threaten or limit the core functions of the media
*May 26, 2015*

**Math**

What is the surface area and volume of a composite figure made up of a hemisphere and a cone in terms of pi? The radius is 10, and the slant height is 15. Are my answers right? Cone surface area: π(10)(15) = 150π Hemisphere surface area: 2π(10)^2 = 200π 350...
*May 26, 2015*

**Spanish**

Concept: Subjunctive Translate: However you wish/the way that you wish = ?
*May 26, 2015*

**life orientation**

critically discuss six ways in which xenophobia impact on individuals and group and the consequences that xenophobia has on the individual ad well
*May 26, 2015*

**Science**

What are some unexplained aspects of the future of fossil fuels and other energy?
*May 26, 2015*

**DIFFERENTIATION **

An open topped taking tin with a volume of 864 cm is to be constructed with a square base and vertical sides. Find the least amount of tin plate required.
*May 26, 2015*

**pre-calc**

nvm
*May 26, 2015*

**pre-calc**

convert 5, pi/4 to rectangular coordinates
*May 26, 2015*

**precal**

is the answer -2pi/3?
*May 26, 2015*

**precal**

which angle is different than the rest A. -4pi/3 B. -2pi/3 C. 2pi/3 D. 8pi/3
*May 26, 2015*

**precal**

answers: A. pi/3, 5pi/3 B. pi/3, 4pi/3 C. pi/3, 2pi/3 D. none
*May 26, 2015*

**precal**

solve for x: 4sin^2x= 4cosx+1
*May 26, 2015*

**precal**

solve for x: 4sin^2x= 4cosx+1
*May 26, 2015*

**precal**

solve for x: 4sin^2x= 4cosx+1
*May 26, 2015*

**math**

For a geology project, Chelsea collected 16.5 kg of rocks on the first expedition and 14.7 kg on the second expedition. Ari collected the same total kilograms of rocks as Chelsea did, but he collected only 13.9 kg on the first expedition. How much did Ari collect on the second...
*May 26, 2015*

**SCIENCE!! PLEASE HELP!!! CHECK ANSWERS PLZ**

@..... can you please answer!!
*May 26, 2015*

**SCIENCE!! PLEASE HELP!!! CHECK ANSWERS PLZ**

wait are you for sure those are all the answers?? are you a 100% sure?!?!?!
*May 26, 2015*

**SCIENCE!! PLEASE HELP!!! CHECK ANSWERS PLZ**

wait are you for sure those are all the answers?? are you a 100% sure?!?!?!
*May 26, 2015*

**Life Oriantation**

Radio, t.v and newspaper
*May 26, 2015*

**chemistry**

a mixture of two liquids n2h4 and n2o4 are used in rockets the produce n2 and water vappour
*May 26, 2015*

**Calculus**

Calculate 5*(t-10)(t-20)=5500
*May 26, 2015*

**algebra**

2x - 4y = 9
*May 26, 2015*

**ap chemistry**

thank you
*May 25, 2015*

**ap chemistry**

a cell is based on the following reaction Fe(s)+2Fe+3(aq) -----> 3Fe+2 (aq) E cell= 1.18 V. Calculate the concentration of iron (II), in M, if the cell emf is 1.28 V. when [Fe^(3+)]= 0.5 M the answer is 0.047 M
*May 25, 2015*

**Math**

What is the equation of the parabola with a focus of (4, 5) and a vertex of (4, 2) opening upwards? y - 2 = 1/12(x - 4)^2?
*May 25, 2015*

**Physics **

A person struggles to read by holding a book at arms length, a distance of 50.0 cm. What power of reading glasses should be prescribed for him, assuming they will be placed 2.0 cm from the eye and he wanted to read at normal near point of 25.0 cm?
*May 25, 2015*

**henry ford**

A rocket is fired at a speed of 74.0 m/s from ground level, at an angle of 68.0 ° above the horizontal. The rocket is fired toward an 49.8-m high wall, which is located 32.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*May 25, 2015*

**math**

I am having trouble understanding how to solve this problem. I found an answer, about 74.2%, but I am not sure if that is correct. Any help would be greatly appreciated! A chess board has 64 squares, 32 white and 32 black, and is played with 16 black and 16 white pieces. If ...
*May 25, 2015*

**English help**

What is the resolution and exposition in 10 things I hate about you? I need help!!
*May 25, 2015*

**English help**

What is the resolution in the taming of the shrew?
*May 25, 2015*

**Business**

Market environment assay
*May 25, 2015*

**Chemistry ( I NEED HELP REAL QUICK )**

thank you!
*May 25, 2015*

**Math**

Mrs. Murphy separates her class into groups of 4 students each, 1 student is left over. If she separates her class into groups of 5 students each, 2 students are left over. What is the least number of students the class could have?
*May 25, 2015*

**Dynamics**

The flat circular disc rotates about a vertical axis through O with a constant angular velocity of 240rpm. Prior to rotation, each of the 0.5kg sliding blocks has the position x=25mm with no force in its attached spring. Each spring has a stiffness of 400N/m, Neglect any ...
*May 25, 2015*

**Probability**

c=0,414
*May 25, 2015*

**Probability**

a) x_1
*May 25, 2015*

**Chemistry**

A method to determine the chloride ion content of water involves precipitate the chloride ion as silver chloride using silver nitrate. Assuming that all the chloride ions in solution can be precipitated using silver nitrate, explain how this process might be performed and the ...
*May 24, 2015*

**CHEM**

You have a bottle of water. The water has a mass of 29 grams. You heat the water with 102 calories of heat and the final temperature of the water is 43°C. What was the initial temperature (in Celsius) of the water before you added the heat? The specific heat of water is 1 ...
*May 24, 2015*

**Calculus**

No top? Area=s^2+ h*s dA/ds=2s+h=0 s=h/2 but volume=s^2*h h=32/s^2 s=h/2=16/s^2 s=cubrt16 h=2cubrt16 check: volume=s^2*h=cubrt16 ^2 2cubrt16 volume=32
*May 24, 2015*

**Art**

Oh wow I just took the test and @m1538 got me a 100% trust him he is right!!!!
*May 24, 2015*

**Art**

somebody!!!!! Anybody???
*May 24, 2015*

**Art**

is @m1538 right?
*May 24, 2015*

**Life orientation**

It is position taken by editors,geographical distribution and space allocated
*May 24, 2015*

**Life orientation**

Four factors that could threat the core function of media
*May 24, 2015*

**4th grade Science (Please Help!)**

the cover on the bowls
*May 24, 2015*

**Combinatorics**

If we roll 19 identical dices together at the same time and calculate the sum of the numbers rolled, how many different possible values of the sum can we get?
*May 24, 2015*

**English check**

1. In the movie 10 things I hate about you, who is Mandela, Kat's friend, fond of? Is the answer Michael 2. In the movie 10 things I hate about you, how does Michael win Mandellas affection? I need help with this one!
*May 24, 2015*

**maths**

volume=PI*4^2*2 meters cubed. mulltiply that by 1000 liters per cubic meter, and you have it.
*May 24, 2015*

**LIFE ORINTATION**

Analyse "the media do not tell us what to think.tell us what to think about "
*May 24, 2015*

**Combinatorics**

Ok. So for 2x2 2 tiles I got 16 for 2x2 3 tiles I got 24 and for 2x2 4 tiles I got 10 Finally, I counted up 65 ways. But it is still the wrong answer. Where am I wrong?
*May 24, 2015*

**Combinatorics**

It is not the right answer, unfortunately.
*May 24, 2015*

**Combinatorics**

We have two kind of tiles : 1 x 1 and 2 x 2, and use them to cover the 8 x 3 road without overlapping, how many different ways to arrange tiles there?
*May 24, 2015*

**Health **

The burning of fossil fuels contributes to: water pollution sewage air pollution**** land pollution
*May 23, 2015*

**Grammar**

2nd one is correct
*May 23, 2015*

**Grammar**

Is the sentence below correct? I want to not only be able to... Or is it: I want not only to be able to...
*May 23, 2015*

**Health **

Using a glass coffee mug instead of a disposable cup is an example of _________. 1.Reducing 2.Reusing*****
*May 23, 2015*

**ethics**

Which of the following occurs when jurors return a verdict which is consistent with their own sense of justice and morality, but inconsistent with the law
*May 23, 2015*

**ethics**

Which of the following occurs when jurors return a verdict which is consistent with their own sense of justice and morality, but inconsistent with the law
*May 23, 2015*

**Physics**

343 j
*May 23, 2015*

**economics**

Welfare payments or consumer subsidies
*May 23, 2015*

**math**

which of the following statements is true 15divide 0=0 or 0 divide 15=0
*May 23, 2015*

**English**

1. identify the adjective phrase in this sentence. The rice in the pot is not yet completely cooked. **Completely cooked 2. The convertible in the garage has only 20000 miles on it. **only 20000 miles 3. Identify the word that the capitalize adective phrase modifies. The ...
*May 23, 2015*

**Combinatorics**

Wrong answer.
*May 23, 2015*

**Combinatorics**

There are two rows of seats in the classroom and each row has six seats. If a class has nine students, and among them three female students G1, G2 and G3 always sit in the first row, two male students B1, B2 always sit in the second row. In how many different ways can all the ...
*May 23, 2015*