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November 23, 2014

Posts by sammy


Total # Posts: 456

Math
The chart shows the number of cars sold per week at a car dealership during the month of June. Salesperson Week 1 Week 2 Week 3 Week 4 Tim 4 8 2 1 Geena 1 2 7 1 Rafael 2 1 5 4 Sonny 4 1 1 10 How should the data be displayed to make the most convincing argument that sales ...
April 18, 2011

Math
Check my answer please? Yuri is wrapping presents. The first box measures 9 inches by 12 inches by 2 inches. He has a second box with dimensions that are each half of the length of the first box. How does the surface area of the second box compare with the surface are of the ...
April 17, 2011

Math
Could you please check my answer? Subtract: (6a+2b-5c)-(3a+2c) My answer was: 3a+2b-7c
April 13, 2011

Math
I'm confused on two questions that are kind of similiar: State the slope and y-intercept of y= -1/2x I know the slope is -1/2 but I don't know the y-intercept State the slope and y-intercept of y= 3x-4 I know the slope is 3, but I don't know if the y-intercept is 4...
April 11, 2011

Math
Vera wrapped a package that measured 8 in. by 10 in. by 5 in. Find the surface are of the package. I really don't know why I'm having trouble with this problem, but for some reason I just don't know where to start it.
April 5, 2011

Math
Which measure of central tendency best describes these data? 100, 5, 90, 95, 100 A. the mode only B. the mean and the median C. the mean only D. the median only I've never really understood central tendency
March 31, 2011

Math
Thank you!!
March 31, 2011

Math
B. every twenty-fifth name in the town's census directory
March 31, 2011

Math
Charlotte wants to conduct a survey to find out if the people in her town think that the town should build a new library. Which group of people would be a representative sample to survey? A. parents with children in middle school B. every twenty-fifth name in the town's ...
March 31, 2011

Math
What is the probability of drawing a heart or a diamond from a standard deck of 52 playing cards? I got 1/2, is this correct?
March 30, 2011

Math
Okay thanks
March 30, 2011

Math
What is the probability of rolling a number cube and getting an even number or a multiple of 3? I got 4/6 as the probability, but that isn't a choice. 6 is a multiple of 3 and an even number, so if I count 6 once, then I get 4/6 as the probability. But if I count 6 twice (...
March 30, 2011

Math
Okay, so the first quartile would be 40, right?
March 29, 2011

Math
You received scores of 70, 40, 70, 90, and 40. Find the first quartile. I don't even know what a quartile is.
March 29, 2011

Chemistry
When someone buys fish at the fresh fish market, they should smell the fish to test for freshness, the less “fishy” the smell the fresher the fish. I am supposed to explain the source and chemistry, including reactions, structures, and names of the compounds, behind ...
March 28, 2011

marketing
to encourage managers to disregard the criterion that a product-market segment should be substantial
March 27, 2011

3rd grade math
47 by 6
March 27, 2011

Math
Thanks, I was confused on this problem! And yes, that's what I thought when I read that gas was only $1.22!
March 21, 2011

Math
The gas tank of a car holds 20 gallons of gas. A gallon of gas costs $1.22. When the tank was filled it cost $20. About what percent of the tank was filled?
March 21, 2011

Math
Thank you both!!
March 14, 2011

Math
A molecule of water is made up of 2 atoms of hydrogen and 1 atom of oxygen. What percent of the atoms of a water molecule is oxygen?
March 14, 2011

Penn Foster
Haha!Glad someone finally got to bottom of this!Happened where I met some people and they said how it was easy to get their degree with getting answers of this site!Made me mad!
March 8, 2011

geometry
the ratio of the perimeter of two similar squares is 5 to 4. If the area of the smaller square is 32 square units, what is the area of the larger square?
March 7, 2011

Math
Okay I get it now. Thank you so much!
March 1, 2011

Math
I have no idea how to do this problem: Select the expression below that is equal to 4(9-m). A. 4m-36 B. 13-m C. 36-m D. 36-4m
March 1, 2011

Math
Thank you!!
February 27, 2011

Math
Could you please check my answer? I did this: 10+10=20. 5.49/20=0.2745 per battery 4+4=8 2.98/8=0.3725 per battery The better deal is if you buy the one 10 pack for $5.49 and get one free.
February 27, 2011

Math
Find the unit price and tell which is the better buy: Buy one 10 pack of AAA batteries for $5.49 and get one free, or buy two 4 packs for $2.98.
February 27, 2011

Math
Find the unit price and tell which is the better buy: A 64 oz. bottle of juice costs $2.39, and a 20 oz. bottle costs &0.79. You can use a 20-cents-off-coupon if you buy four 20 oz. bottles or a 15-cents-off-coupon if you buy a 64 oz. bottle. Which is the better buy?
February 27, 2011

chemistry help
so is it 900 and 4180 is that the difference???
January 17, 2011

chemistry help
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated containers. one hour later, the two containers are opened and the temperture of each substance is measured. the aluminum has cooled to 35 degree ...
January 17, 2011

chemistry help
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated containers. one hour later, the two containers are opened and the temperture of each substance is measured. the aluminum has cooled to 35 degree ...
January 17, 2011

chemistry
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated containers. one hour later, the two containers are opened and the temperture of each substance is measured. the aluminum has cooled to 35 degree ...
January 17, 2011

Algrebra II-please check my answer
Determine the zeros of the function 7x^2 + 9x = 0 answers were: {-9/7} {-9/7,0} {o,9/7} {9/7} I think the answer is {-9/7,0} but I'm not positive when I worked it-If this is wrong please steer me into the correct calcs because then I don't what I'm doing wrong 2....
January 14, 2011

criminal justice
Name some ethical dilemas that prosecutors have to face
January 9, 2011

Algebra II-Thank you
Thanks alot-At least I get one concept!
January 7, 2011

Algebra II-Please clarify one thing for me
Thanks Reiny-I really appreciate it-I get confused about taking the "h" at times So if they say h= (-5), then in the equation when it is written,it is positive and vice-versa, correct?
January 7, 2011

Algebra II
What is the equation of g(x) if the parent function is f(x) = x^2 and a = 2, h = -5 and k = 7 f(x) = 2(x-5)^2 + 7 F(x) = -3(x+5)^2 + 7 f(x) = 2(x+5)^2 + 7 f(x) = 2(x-5)^2 -7 I think it is 2(x+5)^2 + 7, is that right
January 7, 2011

Math(Arithmetic)
I need a factor tree is made for 126 .which numbers appear on the bottom rowhelp with
January 4, 2011

Physics
An airtight box, having a lid of area 12 in2, is partially evacuated. Atmospheric pressure is 15 lb/in2. A force of 108 lb is required to pull the lid off the box. The pressure in the box was:
December 16, 2010

Physics
A rock, which weighs 350 lb in air, weighs 226 lb when submerged in fresh water (62.4 lb/ft3). The volume of the rock is:
December 16, 2010

Physics
what equation do i use to figure that out?
December 16, 2010

Physics
A constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm. Where the pipe is wide The fluid velocity is 8.0m/s. Where it is narrow the fluid velocity is:
December 16, 2010

Physics
Water (density = 1.0 × 103 kg/m3) flows through a horizontal tapered pipe. At the wide end its speed is 4.0m/s and at the narrow end it is 5.0 m/s. The difference is pressure between the two ends is:
December 16, 2010

science
How many molecules of stearic acid are present in 2.00 mL of a 0.25 mM solution of stearic acid?
December 15, 2010

science
In a device like the one shown below, the cylinder is allowed to fall a distance of 300 m. As a result, the temperature of the water increases by 2.7°C. What would have been the increase in temperature if the cylinder were only allowed to fall 100 m?
November 6, 2010

8th Grade Math
1.183875 I recommend getting a TI-34 Multiview calculator.... Best one yet(:
November 1, 2010

science
for radio waves with a frequency of 454.4 nm, determine the wavelength, the energy of a photon and the energy of one mole of photns in kj/mol
October 27, 2010

Math- practical purpose
For many years, China has been the world's most populous country. However, India has been catching up, with 1132 million in mid-2007 and growing at 1.6% per year, versus China then with 1318 million and growing at only 0.6% per year. If these rates continue, when will ...
October 25, 2010

science
13 blocks in all but ends up on the east side
October 20, 2010

socail studies
yes but the summerains were counted as the ones who really settled it
October 20, 2010

math correct not correct
yay you got it just make sure to show your work " u
October 20, 2010

6th grade
a right angle is 90 degrees so mla must be acute because acute is less than 90 degrees
October 20, 2010

spanish
por mucho que means how much what i cant seem to answer biancas question can you answer it or help me try to answer it please
October 20, 2010

chemistry
a mixture of gases contains 0.4 mole of N2, 0.5 moles of O2, and 0.7 moles of H2. What is the partial pressure of O2 if the total pressure is 1.3 atm?
October 19, 2010

Physics
A ball is thrown straight upward and returns to the thrower's hand after 3.40 s in the air. A second ball is thrown at an angle of 29.0° with the horizontal. At what speed must the second ball be thrown so that it reaches the same height as the one thrown vertically?
October 13, 2010

kwame nkrumah university , ghana
freepassion_sam then we can start even if u have finished
September 27, 2010

kwame nkrumah university , ghana
give me your addy to help u out
September 27, 2010

6th grade science
one parent has brown eyes the other has blue eyes, if they have a child what is the percent that it will have brown eyes? blue eyes?
September 24, 2010

Physics
Aaah...Thank YOu!!!
September 21, 2010

Physics
Brett Favre is traveling from Minneapolis to Green Bay at 40mph. Aaron Rodgers is traveling from Green Bay to Minneapolis at 50mph. If they leave at the same time, how far from Minneapolis will they meet? Green Bay and Minneapolis are 260 miles apart.
September 21, 2010

10th grade
3 points on a line Q,P,R (In order) if QP =2x and QR =2x+1 and PR =21 Solve for x
September 20, 2010

Chem Webwork help
1. What is the pH when enough 0.10 M Base (in mL) is added to neutralize 8 mL of 0.10 M Acid? Complete the following table. NaOH HC2H3O2 2. What is the pH of the solution created by combining 2.60 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of ...
July 12, 2010

college
YOu come to work on a Monday morning and find that the office computer is not workingt. The system manager tells everyone that the computers hard disk crashed and that all data that were not backed up are lost. What do you do?
June 23, 2010

Poetry
my computer wint allow me to see this website or webpage.
May 19, 2010

Poetry
i need some examples of simile, metaphor, and personification. From not any website
May 19, 2010

Math
Increasing $100 by a certain percent produces the same result as decreasing $300 by the same percent. What is this percent?
May 14, 2010

chemistry
hydrogen and oxygen gas combine explosively to produce water. write a blanced equation for this process. if 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?
May 6, 2010

Science
2NO2. how many grams of NO2 will be produced with 5.00 moles of NO React? what would the working out of this be?
May 6, 2010

physics
two parallel conductors are located one above the other, with both carrying currents in opposite directions. As a result they repel each other. is the upper conductor in a stable state of levitation? b) Now we reverse one current so that the two conductors attract each other. ...
April 18, 2010

Analogy
Analogy: broom is to sweep AS brush is to _____________ 5 letter word that starts with either scr, spr, str, or thr. I've been trying to figure this out but I can't. I need help.
April 14, 2010

5th grade
Need help with an analogy. brother : mother fly : _ _ _ _
April 14, 2010

Math
Describe how a mathematical function is created. Be sure to include a discussion of dependent and independent variables, and the two sets called domain and range.
April 14, 2010

Math
A population of primates in a certain jungle is doubling each year. Describe how the population increases in size as a function of time. Give some example values for this population over time. Is this a linear or exponential relationship?
April 14, 2010

Math
Give two examples of linear relationships (they can be from the world of business, science, sports, or other areas). Since their graphs would be straight lines, describe the meaning of the slopes of these lines as they relate to these relationships
April 14, 2010

Math
Describe the basic differences between linear growth (a linear model) and exponential growth (an exponential model).
April 14, 2010

Classroom Management Techniques
The Nile perch population explosion has been accompanied by: a decrease in the dissolved oxygen in the shallowest portions of Lake Victoria. a decrease in the dissolved oxygen in the deepest portions of Lake Victoria. an increase in the dissolved oxygen in the deepest portions...
March 22, 2010

social studies
What would most likely happen if the Canadian government overruled the current laws protecting French language and heritage in the province of Quebec?
March 21, 2010

MATH
bjhkfghk.ghdlf; yuio;ryuieuh
March 19, 2010

Chem
How would increasing the volume of the reaction vessel affect these equilibria. You don't have to tell me the answers, but can you please explain to me how I get the answer. a) NH4Cl(solid) <===> NH3(gas) + HCL(gas) b) N2(gas) + O2(gas) <===> 2NO(gas)
March 10, 2010

Chemistry
Why does changing the volume of the reaction vessel have no effect on this equilibrium? CO(g) + Fe3O4(s) <===> CO2(g) + 3FeO(s)
March 8, 2010

chemistry
a chemist reacts 8.85g or iron with an excess oh hydrogen chloride to form hydrogen gas and iron(II)chloride.calculate the theoretical yield and the percentage yield of hydrogen if 0.27g H2 are collected
March 7, 2010

CHEM
If 335g water at 65.5 degC loses 9750 J of heat, what is the final temperature of the water?
March 1, 2010

math
Write as fractions. a. 1/2 of 3/4 b. 1/3 of 3/5 c. 3/4 of 1/6
March 1, 2010

Chemistry
If 430 mL of 0.837 M aqueous HNO3 and 23.5 g of solid Al are reacted stoichiometrically according to the balanced equation, how many grams of solid Al remain? Round your answer to 3 significant figures. 6HNO3(aq) + 2Al(s) → 3H2(g) + 2Al(NO3)3(aq)
February 26, 2010

math
an airline passanger fell asleep halfway to her destination. When she woke up, the distance remaining was half the distance traveled while she was asleep. What portion of the trip was she asleep?
February 23, 2010

Physics
Hi, I tried this question...should we use g as -9.8m/s^2?
February 5, 2010

Physics
A force of 4.3 x 10-15 N acts between an electric dipole with dipole moment 2.3 x 10-29 C m and an electron. How far away from the dipole is the electron located when it travels along the dipole axis?
February 5, 2010

Physics
A hydrogen atom consists of a positively charged proton (nucleus) and a negatively charged electron. The following is correct due to Coulomb's law: a.The two particles repel each other b.The electron accelerates toward the proton c.The electron and proton are in mechanical...
February 5, 2010

Microeconomics
Explain how the supply of new housing interacts with shifts in the demand for owner-occupied housing in your neighbourhood or an area with which you are familiar. In what ways does the mechanism differ from that which exists normally in markets for consumer goods such as ...
February 1, 2010

Chemistry
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 425C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at the new temperature is ...
January 31, 2010

Physics
Sorry for the repost, i made a typo in the original post's subject. A dry water well is 1.5 m in radius and 5.0 m deep. In order from lowest to highest, the fifth resonant frequency of this well is closest to ... I know that it is an open-closed system, but how would we ...
January 27, 2010

physis
A dry water well is 1.5 m in radius and 5.0 m deep. In order from lowest to highest, the fifth resonant frequency of this well is closest to ... I know that it is an open-closed system, but how would we take into account the amplitude, which is the radius given for this ...
January 27, 2010

Chemistry
Assuming it behaves as an ideal gas, calculate the temperature of a sample of He whose molecules have an average translational kinetic energy of 1.14E-23 kJ/molecule.
January 24, 2010

algebra
Asked question wrong last time. New question with description of how to figure it out please. What is the value of 3t+7 given -2t+1 =3
January 17, 2010

algebra
What is the value of 3t+7 when you know -21t+1=3 I need to know how to figure this out not just the answer. Thank you
January 17, 2010

social studies
what is a nobleman
January 10, 2010

Calculus
im asking the rate of convergence as the order such h^2? h^3? etc
December 11, 2009

Calculus
Find the Rates of convergence of the following functions as h->0 lim h->0 sin h - hcosh ------------- = 0 h Find the Rates of convergence of the following functions as n->inf lim (Sin (1/n))^2=0 n-> inf
December 11, 2009

algebra
Qaud Forumula -b+-sqrt(b^2-4ac) / 2a 3x^2-2x-4=0 a = 3 b = -2 c= -4 -(-2) +- sqrt((-2)^2-4(3)(-4))/ 2(3) = 2 +- sqrt(52) / 6
December 11, 2009

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