Friday

August 26, 2016
Total # Posts: 261

**Mathssss**

if x+1 is a factor of x^3-2x^2+5x+c, find the value of c.
*May 27, 2012*

**Functions-Math**

find the value of k such that when 2x^3+9x^2+kx-15 is divided by x+5, the remainder is 0.
*May 7, 2012*

**Math-divide Polynomial**

need to find the quotient and remainder. x^3+x^2y-9xy^2-9y^3 / x+y
*May 7, 2012*

**life orientation**

Ways in which the human or environmenta l problem impact on the community
*April 29, 2012*

**Biology**

GENETICS PRACTICE PROBLEMS Worth 10 points each problem is either right or wrong 1. In humans, assume that brown eyes (B) are dominant over blue eyes (b). A blue eyed man, both of whose parents were brown eyed, marries a brown eyed woman whose father was brown eyed and whose ...
*April 16, 2012*

**Chemistry**

Im not getting the right value.I get 1.24*10^-4 and thats not correct.
*February 6, 2012*

**Chemistry**

Well, they also gave this information: A reaction has a rate constant of 1.24×10−4 at 25 C and 0.228 at 79 C.
*February 6, 2012*

**Chemistry**

i have no idea how to apply this formula as we can only use one temperature and this requires the use of two.
*February 6, 2012*

**Chemistry**

What is the value of the rate constant at 17 degrees celsius? The Ea = 122 kJ/mol I know I have to use ln k = ln A - Ea/RT.. but I don't know how to calculate it without known ln A and how do you find ln A Thank you for your help!
*February 6, 2012*

**physical science**

A rectangular container measuring 16cm times 46cm times 67 cm is filled with water what is the mass of this volume of water in kilograms and grams? (take the density of water to be 1000 kg/m cube
*January 26, 2012*

**science**

i need a arostic poem on w e g e n e r and h e s s
*December 20, 2011*

**CHEMISTRY**

1 H2O 2 H3O+ 3 NO3- 4 OH- 5 HNO3
*October 17, 2011*

**organic chemistry**

calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium, based on the quantities of starting materials you used and a value of 4.2 for the equilibrium costant
*September 28, 2011*

**physics**

A helicopter is ascending vertically with a speed of 5.20 m/s. At a height of 120 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: v_0 for the package equals the speed of the helicopter.]
*July 8, 2011*

**chemistry**

A sample of a breathing mixture for divers comtained 34.3% helium, 51.7% nitrogen, and 14% oxygen, by mass. What is the density of this mixture at 22degree celcius and 755mmHG?
*May 24, 2011*

**MATH 15 Stats**

simple random sample of 50 women on new product of the 50 women, 60% reported they like the new product, fina a 90% confidence interval for the true proportion of women.
*April 13, 2011*

**math**

Find the length of the hypotenuse of a right triangle, the other two sides of which measure 9 cm and 12 cm.
*April 2, 2011*

**Math Please help**

lim ((x^2-64)/(x+8)) x->-8
*February 1, 2011*

**statistics**

find the number z such that the proportion of observations are less than z in a standard normal distribution is 0.8
*January 31, 2011*

**Math fractions**

How do you get the answer for addition with unlike denominators: 3/8 + 1/2=
*December 1, 2010*

**chemistry**

so all the units i have to change is just for temperature and then leave the rest as they are
*November 23, 2010*

**chemistry**

mass= 3.8721g temperature= 102 degrees Celsius volume= 156ml atmospheric pressure= 755.0 mm Hg calculate the molar mass using the ideal gas law
*November 23, 2010*

**english**

i am looking for the main topic in this paragraph would it be In society today more and more people are making the wrong choices to protect their wellbeing and overall health. In society today more and more people are making the wrong choices to protect their wellbeing and ...
*November 17, 2010*

**math**

18,27,45
*October 18, 2010*

**physics**

While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 275 m east, 215 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.
*September 20, 2010*

**Finance**

) If a stock pays a dividend of $1.30 annually, has earnings-per-share of $4.50, and closed yesterday at $76.50, then which of the following statements is true? (Approximation is fine!) a. The dividend payout ratio is 82.8% b. The dividend yield is 5.7% c. The P/E Ratio is 17 ...
*March 14, 2010*

**Finance**

If an instrument has a 10.7% Nominal Return, the inflation rate is 3.1%, and your tax rate is 28%, what’s your approximate “Real After-Tax Return?” a. 4.6% b. 7.6% c. 5.8% d. none of the above
*March 14, 2010*

**Finance**

) What is your Average Payment Period if your Accounts Payable are $20,000, cost of Goods Sold is $200,000, and Sales are $500,000?
*March 14, 2010*

**algebra**

I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem and what ...
*January 31, 2010*

**algebra**

I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem and what ...
*January 31, 2010*

**Science**

help
*January 19, 2010*

**ETH125**

Write a 1,050- to 1,400-word research paper identifying the linguistic, political, social, economic, religious, and familial conventions and/or statuses of four Hispanic groups living in the United States. Your paper should cover Mexican Americans, Puerto Ricans, and two ...
*February 1, 2009*

**Math**

Business and finance. Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than of the sample to be ...
*November 21, 2008*

**math**

I'm in 6th grade and never heard of using ! in math. I guess I'll do it the long way to see how it works. Thanks so much :)
*September 11, 2008*

**math**

I'm having trouble on how to figure something out. The question says a pizza place uses 5 toppings (a,b,c,d,e). How many different combinations can be made with the pizzas having 3 different topping? A
*September 11, 2008*

**exponets**

15-24 divided by 2.2
*September 3, 2008*

**Math algebra**

One number is 10 more than the other number. Twice the smaller number is 13 more than the larger number. What are the numbers?
*August 28, 2008*

**Maths - More than one question please help me**

it is an equation
*July 3, 2008*

**SCIENCE**

HOW DOES THE DIAPHRAGM HELP YOUR BODY BREATHE?
*May 13, 2008*

**SCIENCE**

WHY IS YOUR ESOPHAGUS WRAPPED IN SMOOTH MUSCLE AND YOUR TRACHEA WRAPPED IN BANDS OF CARTILAGE?
*May 13, 2008*

**SCIENCE**

WHY DOES YOUR CHEST BEGIN TO BURN IF YOU HOLD YOUR BREATH TO LONG?
*May 13, 2008*

**Algebra 2**

thank you. how did you get the answer?
*April 13, 2008*

**Algebra 2**

well it says to simplify.and thats all it gives me. its either one of the following answers a.6x^3/20z^3 b.6x^3y^2/20z^2 c.120x^3/z^3 d.120x^3z^3
*April 13, 2008*

**Algebra 2**

Can someone help me on how to do this problem 2xy(3x^2)(4y^-1)(5z^-3)
*April 13, 2008*

**sensory abilites of the dog**

Teeth- the maxillary sinuses are located in the roof of the mouth very close to the roots of the large canine teeth. Any problems with the teeth can seriously affect the dogs olfaction
*March 31, 2008*

**banking and money**

Steps 1. Complete the assigned readings for this unit. 2. Read the article found at the website provided in Materials below. 3. Post a 100- to 150-word answer for each of the following questions: Credit cards and travelers' checks are widely accepted as a medium of ...
*March 11, 2008*

**year7 - ICT**

PLEASE COULD SOMEONE TELL ME WHAT A SCREEN SHOT IS IN ICT THANKS
*February 10, 2008*

**Spanish**

Translate ...using the imperfect passive tense about the things I enjoyed when I was younger. Mark any accent or other marks. I was holding onto my piggybank. I collected a lot of money. I was at my backyard in my house. I played with stuffed animals. My sister and I were at ...
*January 22, 2008*

**Translate into Spanish**

...using the imperfect passive tense about the things I enjoyed when I was younger. Mark any accent or other marks. I was holding onto my piggybank. I collected a lot of money. I was at my backyard in my house. I played with stuffed animals. My sister and I were at an ...
*January 22, 2008*

**maths**

i have a lot of maths HW and i dont understand how to Factorise??? Pleasea help me!
*October 26, 2007*

**socila studies^-^ ! help**

name at lease 5 important event that took place in the history of texas.(NOTE: historical events are important things that happened in the past.do not put annual events here.) http://en.wikipedia.org/wiki/History_of_Texas a major confederate blunder which led to union victory ...
*May 20, 2007*

**social studies**

what is texas important important service industries I dont know what you mean by "important". Major employers of service type jobs are fast foods, cleaning, police, maintenance and repair organizations (automobile, aircraft, building), and state and county ...
*May 18, 2007*

**socila studies**

what is texas important land form I dont know what you mean by "important" The Texas coastal plain, the Hill country, the western desert, and the Northern high plains, and of course, the Trans-Pecos region of the Rocky Mountains. I suggest you do an internet search ...
*May 18, 2007*

**Earth**

1. The great galaxy in Andromeda has an angular diameter along its long axis of about 5^0. Its distance is about 2.2 million light years. What is its linear diameter? angle*distance= arc distance. You need the angle in radians to do this.
*April 3, 2007*

**hum 130**

I need to find at least two effects organized religion has had on society, and provide examples from past or present. Have you considered laws? Such as marriage, divorce? Have you considered social organization, such as family activities at gatherings, clothes worn, etc? Have ...
*March 23, 2007*

**physical chemistry**

I calculated that the denaturation enthalpy and entropy changes for chymotrypsin are: H = 418 kj/mol S= 1.32 kj/mol(K) Assume that, in the denatuartd state, each amino acid had three possible orientations. estimate number of amino acid in chymotrypsin using the value of the ...
*February 20, 2007*

**ETH**

does asian americans and pacific islanders belong to a single asian american culture
*December 5, 2006*

**ETH**

are Asian Americans and pacif Islanders a model of minority
*December 5, 2006*

**science**

please i need help under this comment is the question thanks Answered below.
*November 13, 2006*

**Science. plz help!!**

What is the physical and chemical characteristics of the element neon? p.s- a really need help i'm not joking. oh yeah and thank you for your time! I think I answered this last night but it may not have been your question. Anyway, go to www.webelements.com and click on ...
*November 13, 2006*

**Neon**

What is the normal phase? Neon is a gas at room temp and pressure. yo mamma.
*November 12, 2006*