Tuesday
December 6, 2016

# Posts by Sally

Total # Posts: 1,143

Plz help :(
1. Write the ratio in the simplest form. 16:24 (1 point) 1:2 4:3 3:4 2:3 2. Solve the following proportion. x over three equals six over nine (1 point) 18 27 2 24 3. A recipe calls for 3 cups of flour to make 3 dozen cookies. Use the proportion to calculate how much flour is ...
November 25, 2013

Math help plz check my answers!
1. Write the ratio in the simplest form. 50:10 25:5 10:2 5:1 1:5 2. Solve the following proportion. r/5= 9/21 r = 9 r = 2.14 r = 11.66 r = 37.8 3. A recipe calls for 3 cups of flour to make 3 dozen cookies. Use the proportion to calculate how much flour is needed to make 9 ...
November 23, 2013

Math
Expand and simplify For + 5(a+8)= And for - 7(3d-6)
November 18, 2013

accounting
Exercise 5-3 Analyzing and recording merchandise transactions-both buyer and seller LO P1, P2 Santa Fe Company purchased merchandise for resale from Mesa Company with an invoice price of \$16,000 and credit terms of 3/10, n/60. The merchandise had cost Mesa \$10,912. Santa Fe ...
November 17, 2013

Calculus
For R"(x) = -15[(x-1)(e^-x)-(e^-x)] with 0 < x < 7 What interval is the graph concave and and concave down? I know concave up is (0,2). Is that right? Does concave down exist?
November 11, 2013

Economics
Is it true that the underlying trend of growth in the economy is determined by the growth in the number of workers, the growth in the savings and investment rate, and the growth in productivity ?
November 9, 2013

math
Find the equation of the line that has the given slope and passes through the given point: m = -3, (6,6)
October 29, 2013

English
She sat waiting with hope
October 22, 2013

basic english
Complete the following sentence with a word or words that show a logical relationship. Joshua took a nap _____ sorting the mail.
September 23, 2013

Economics
Could you please elaborate on Cap and Trade? How could we use it for companies to limit their air pollutants?
September 20, 2013

World History
Not sure need help
September 11, 2013

Computer Science
The array represents a map with coins, and the integers represent a row and column location of a coin gatherer. The gatherer is greedy and lazy when deciding to which adjacent location (either up, down, left, right) to move next. It’s greedy because it moves to the ...
September 8, 2013

Geography
I love me some pie, agriculture built pie. Agriculture is important. WE should figure out this question. I don't know the answer, but we can do this!!!!!!!YEAH!!!!!!!!!!!!!!!
September 5, 2013

psychology
how do various behaviors of social dominance and coutship display affect the evolutionary process
September 4, 2013

math
Who discovered the Worlds Smallest Glacier?
August 20, 2013

algebra 2
Who discovered the Worlds Smallest Glacier?
August 20, 2013

Animal Physiology HELP!!!!!!!!!!
Please help me!!! What are the answers to these Animal Physiology questions? Urgent..... A decrease in the partial pressure of carbon dioxide in the lungs is referred to as a) Respiratory acidosis b) Hypercarbonia c) Hyperoxia d) Hypercapnia ...
July 31, 2013

Math
Phil is three times as old as Carrie. Five years ago, phil was four times as old as Carrie was at that time. How old is Carrie now?
July 13, 2013

science
10% of the atmosphere is located above the altitude where the pressure is a. 100 b. 900
July 8, 2013

Math
tan-1(tan(3pi/5))
July 7, 2013

English 10
Add punctuation to the following excerpt. Irving continues in those days, the heart of lover could not contain more than one lady at a time a modern gallant has often room enough to accommodate half a dozen either the hearts of the gentleman have grown larger, or the persons ...
June 27, 2013

Introduction to human services
What have been the most significant changes in human services over the past 50 years
June 18, 2013

Art
yea i have bats, oh ok thnx
June 16, 2013

Art
i have to make a cave for art but i need ideas what to put in it. There's four rooms in the cave, i have bones,skeleton,stalagmites,stalactites,webs what eles?
June 16, 2013

Finance
You are considering buying 100 shares of TEXAS INC common stock. The common stock is expected to pay a dividend of \$2.50 a year from today; the growth rate of the dividends is 8% for two years, then level off to a constant rate of 5% per year. The correlation between TEXAS Inc...
June 14, 2013

Spanish
Tu amigo insiste en preguntarte de quiénes son las cosas. Tú le contestas de forma muy enfática. 1.¿De quién es este sombrero? / tú 2.¿De quiénes son estos cinturones? / Tomás y Ricardo 3.¿De quiénes ...
June 2, 2013

chem ! help!
.A balloon is filled with 14 L of gas at 302 K. What is its temperature in Kelvin when the volume expands to 20 L? Round to the nearest whole number. Don't forget the units. my teacher explained it but im still lost please help
May 23, 2013

algebra
May 4, 2013

algebra
find the LCM of 15ef and 12e^4 (12e to the power of 4) Please show the steps. I do not understand how to do this.
May 4, 2013

Chemistry
Oh and the Ksp values for AgCl and PbCl2 is 1.8x10^-10 and 1.7x10^-5, respectively.
April 21, 2013

Chemistry
A solution contains 0.022 M Ag and 0.033 M Pb2 . If you add Cl–, AgCl and PbCl2 will begin to precipitate. What is the concentration of Cl– required, in molarity, when A. AgCl precipitation begins? B. AgCl precipitation is 99.99% complete? C. PbCl2 precipitation ...
April 21, 2013

math
find the verticle, horizontal, and oblique asymptotes, if any, for the given rational function: g(x)=x^4-81/3x^2-9x I feel like such a dork becaue i have no clue how to do this, can someone please help me????
April 15, 2013

calculus
3). The shaded region is bounded by the y-axis and the graphs of y=1+√x, y=2. Find the volume of the solid obtained by rotating this region around the x-axis. Answer choices: 7/6pi, 4/3pi, 11/6pi, 5/3pi, 13/6pi, 5/6pi 4). Find the area of the region bounded by y=x^2-6x+7...
April 14, 2013

calculus
5). Find the volume of the solid of revolution generated by rotating the graph of y=8 lnx about the y-axis between y=0 and y=16 Answer choices: 238.39pi, 246.39pi, 230.39pi, 214.39pi, 222.39pi 7). Find the area of the region bounded by y=√x-2, y=9, y=0, x=0
April 14, 2013

calculus
10). Find the area of the region bounded by the graph of f(x)=4lnx/x, y=0, x=5.8 11). Find the area of the region bounded by x=y^2-1y, x=0
April 14, 2013

calculus
8). Part 1 of 2: In the solid the base is a circle x^2+y^2=16 and the cross-section perpendicular to the y-axis is a square. Set up a definite integral expressing the volume of the solid. Answer choices: integral from -4 to 4 of 4(16-y^2)dy, integral from -4 to 4 of (16+y^2)dy...
April 14, 2013

Math
Null factor law and factoriising: 2x^2+7x=0 X(2x+7)=0 X=0 or 2x+7=0. ( the answer in the book was x=-7/2, how? And. X^2-4=2x-4 Is it x^2-4-2x+4=o ??? If so!' how do I continue?
April 14, 2013

pre calculus
Given the following polynomial; f(x)=(x-2)^3 Find: a. the zeros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. end behavior I have no clue what I am doing. pleeeaaase help!!!
April 10, 2013

ecology
Ten breeding pairs of rabbits are introduced onto an island having no natural predators and a good supply of water and food. What will most likely happen to the rabbit population? 1. It will decrease and then increase indeﬁ- nitely. 2. It will die out due to an increase...
April 9, 2013

math
4xsquared=32
April 4, 2013

math
the length of a photograph is 1 cm less than twice the width. the area is 28 cm squared. find the dimensions of the photograph.
April 2, 2013

math
Students are baking muffins to sell to raise money. They bake muffins in trays of 24 muffins each. They want to divide the muffins on each tray into equal packets. Which packet size would result in muffins from each tray being left over? A.3 muffins per packet B.6 muffins per ...
March 27, 2013

English/writing
what is a catchy topic for my essay based on this thesis statement? In Nathaniel Hawthorne's, The Scarlet Letter, it suggests that one must find their own internal strength and strive for individual redemption by applying the beliefs of transcendentalism and individualism ...
March 27, 2013

Chemistry Solubility help!!!!!!!!!
INFORMATION: [HCl] = 0.1388 M We placed 0.5 g Ca(OH)2 in 100 mL of the following solutions: Flask A: Distilled Water (7.4 mL of HCl needed to titrate) Flask B: 0.05 NaOH (12.1 mL of HCl needed to titrate) Flask C: 0.025 NaOH (10.8 mL of HCl needed to titrate) Flask D: 0.0125 ...
March 26, 2013

Physics
A dockworker loading crates on a ship finds that a 22-kg crate, initially at rest on a horizontal surface, requires a 76-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 59 N is required to keep it moving with a constant ...
March 25, 2013

algebra 2nd try
I need to simplify this 2/∛49 . I figured it out to be (2∛((49)^2))/49 but the system I added my answer to says this is incorrect. Please help me! Thanks anyone.
March 23, 2013

algebra
Simplify 2/root 3(49) I solved it as 2 root 3(49) over 49. the system that I entered it in says this is incorrect. Help I need to understand how to do this problem with steps. I am so confused. Thanks
March 22, 2013

Chemistry
I have done this and got 31.68 for the molar mass. I converted 720.mmHg to .947 atm. T is 304 degrees K. I came up with n=5.47*10^-3. This gives me a molar mass of 31.63. I am being told this is incorrect. I am not sure where I am going wrong. Can you help me? L=.144
March 18, 2013

Chemistry
An experiment shows a 144mL sample of gas has a mass of 0.173g at a pressure of 720mmHg at a temperature of 31 degrees celsius. what is the molar mass of the sample of gas?
March 18, 2013

Math
In right triangle ABC what is the arithmetic mean (average), in degrees, of the measures of the two smallest angles? Explain how the answer is 45 degrees.
March 11, 2013

algebra
Triangles ABC and DEF are similar. Find the area of triangle ABC. Round your answer to the nearest tenth. the answer should be __________m^2 triangle abc has a 12m. triangle def has 12m and 18m.
March 9, 2013

Chemistry
How many grams of Na3PO4 are needed to produce 250mL solution that has an Na concentration of 1.04M?
March 9, 2013

College Algebra
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions. 2x2 = -2 -5 Thank you
March 9, 2013

Math
In the word Symmetry, which letters are symmetrical?
March 6, 2013

HELP!
March 1, 2013

Physics
A space probe is carried by a rocket into outer space where it continues to move on its own in a straight line. What keeps the probe moving? Is the answer: the gravitation forces from diﬀerent stars and planets
March 1, 2013

HELP!
March 1, 2013

Physics
If a Mack truck and Honda Civic have a headon collision, upon which vehicle is the impact force greater and which vehicle experiences the greater acceleration? I know they have same force.
March 1, 2013

Physics
Thanks
March 1, 2013

Physics
1)The Earth exerts an 710 N gravitational force on a man. What force does the man exert on the Earth? Answer in units of N 2)If a book is sitting on a table, the force of gravity pulls it down. Why doesn’t it fall? Is it because The table is pushing up on it with a force ...
March 1, 2013

Physics
Thanks
March 1, 2013

Physics
You hit someone with a force of 197 N. How much force is exerted on you? Answer in units of N Is the answer 197 N
March 1, 2013

Physics
You hit someone with a force of 197 N. How much force is exerted on you? Answer in units of N
March 1, 2013

algebra
Solve. x/9-1/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1 (x/9-1/7)=__________/1 multiply 26/63. STEP 2: Use the Distributive Property. _____/1 multiply x/9 - _________/1 multiply 1/7 = ______________. ...
March 1, 2013

algebra
Solve the formula for the variable given. P = r-c/n solve for c. (business) I have worked this problem so many times I'm getting confused. please help. Thanking you in advance
March 1, 2013

algebra
Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. Round your answer to the nearest tenth. ab=4ft bc=6ft ac=5ft de=6ft ef= 9ft there is no feet given for df Please can anyone help me solve this with steps I don't understand how to do this. Thanking you ...
March 1, 2013

algebra
Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. Round your answer to the nearest tenth.
March 1, 2013

chemistry
hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. in doing so, each molecule of hemoglobin combines with four molecules of O2. if 1.00 g of hemoglobin combines with 1.53 mL of O2 at 37 C and 743 torr, what is the molar mass ...
February 20, 2013

chemistry
Solid white P melts then vaporizes at high temperatures. Gaseous white P effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions. How many atoms are in a molecule of gaseous white phosphorus?
February 20, 2013

CHEMISTRY URGENT!
for combined gas law
February 3, 2013

CHEMISTRY URGENT!
just one question how do you find the constant k???
February 3, 2013

Chemistry
how many half lives have passed if only 0.625g remain of the original 40g?
January 28, 2013

math
Thank you very much Reiny and also Damon. This is the first time I felt embarrassed helping my son. Sign of things to come of course. As Reiny suggested, we ended up plotting and then selecting less than half a dozen candidates. I also cheated and made a spreadsheet just to ...
January 27, 2013

math
sorry B=(-2,11)
January 27, 2013

math
My son has been given the collinear problem below that has be stumped two folds. 1- By trying to solve the problem using (y2-y1)/(x2-x1)=slope -- and then, find the (b) in y=mx+b for two points takes way way too long to be a 7th grade probem. My son has already been working on...
January 27, 2013

Chemistry
I got 7516.88J for ?J and mass of soln = 158.2g So my equation is 7516.88 J = 158.2g x 3.78 J/(g·°C)x(Tfinal -21.87) 12.57 = Tfinal - 21.87 Tfinal = 34.44°C Which was wrong. The hint they gave me was Start by finding the amount of heat produced when 70.0 mL of 0...
January 24, 2013

Chemistry
The neutralization of H3PO4 with KOH is exothermic. H3PO4(aq) + 3KOH(aq) -> 3H2O(l) +K3PO4(aq) +173.2KJ 70.0 mL of 0.207 M H3PO4 is mixed with 70.0 mL of 0.620 M KOH initially at 21.87 °C. Predict the final temperature of the solution if its density is 1.13 g/mL and its...
January 24, 2013

Chemistry
Can someone please help with this problem and explain it please? If soil has a density of 1.32 g/cm cubed, then what does 1.0 cubic yards of soil weigh in pounds?
January 21, 2013

social science
1) Which large European city declined significantly in population over the past century? A) Paris B) London C) Rome D) Madrid 2) The industrial city was characterized b A) decentralization B) corporate growth C) manufacturing D) commerce 3) Modern humans have existed for ...
January 16, 2013

Chem
34.5 g of O2 react with lithium metal to produce solid lithium oxide. How many grams of Li2O are produced
January 7, 2013

Physics
A rogue chipmunk has been raiding the secrete acorn stash of 3 squirrels. On discovering the perpetrator in the very act they secure him with 3 ropes and attempt to pull him off the limb where he falls to his demise. The first squirrel pulls at an angle of 12 degrees with a ...
December 15, 2012

Chemistry
Solve the following pls. Calculate the number of grams in these quantities: 1. 0.0600 mol HC2H302 2. 4.50 x10^21 molecules glucose C6H2O6
December 14, 2012

Psychology
what is the study called where the same people are tested repeatedly at different ages?
December 5, 2012

what does y=x
December 4, 2012

math
A drawer contains exactly 5 red socks, 8 blue socks, 10 while socks, 12 green socks , and 7 yellow socks. Find the least number of socks to be chosen which will guarantee that there will be at least seven socks of the same color.
November 30, 2012

4th Math
can u help me find the input and output?Input numbers are 3,5,9 and output numbers are 12,15,30,33 and how u got the answers
November 28, 2012

Exceptional Child
James wants a new toy. He says, "James toy". He is using: A. short sentences B. telegraphic speech. C. baby talk. D. holophrastic speech.
November 27, 2012

trig
I don't understand what to do after i convert everything into cos and sin. Verify: cosx(tanx+cotx)=cscx
November 25, 2012

chemistry
first you must find the # of moles of NaCO3 produced: 79g NaCO3/83g(per mole of NaCO3)NaCO3 = .95 moles NaCO3 then you compare the # of moles in the equation, its a 1:1 molar ratio NaO + CO2 ==> NaCO3 (use dimensional analysis) .95 mol NaCO3| 1 mol NaO | 39g NaO ...
November 25, 2012

math
14.8 duhh
November 16, 2012

statistics
A naturalist leads whale watch trips every morning in March. The number of whales seen has a Poisson distribution with a mean of 2.1 Find the probability that on a randomly selected​ trip, the number of whales seen is 3. Round to four decimal places.
November 15, 2012

SCIENCE 9 URGENT!!
2. Look into the urinary system or urogenital system. (This is just a guess) You can do more research on the internet. But it can get you started.
November 7, 2012

SCIENCE 9 URGENT!!
4. The testes are outside of the body. Because sperm can only live at a specific temperature. Our body temperature is too hot for them, and they would die. That is why they have to be outside of the body.
November 7, 2012

chemistry
What is the radius of a cylinder that has a density of 4.50 g/cm , a height of 67 cm, and a mass of 760 grams?
October 23, 2012

English
Thank you I thought it might be an intensive pronoun because if removed the meaning os the sentence would be the same.
October 21, 2012

English
In this sentence: Matt began to see himself differently after he talked to Mr. Bataky. In this sentence "himself" is an object pronoun, subject pronoun, intensive pronoun, reflexive pronoun?
October 21, 2012

Chemistry
how do you balance the equation with H3PO4(aq)and BaCl2(aq)?
October 21, 2012

English
Once order had been restored, the leaders of the opposition called for the (revocation, keepsake ) of martial law.
October 17, 2012

math
What percent of \$1.00 is a nickel?
October 17, 2012

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