Friday
August 26, 2016

Posts by Vicky

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

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