Questions Asked on
May 23, 2010

calc
The points P(2, 1), Q(6, 4) and R(4,3) are three verticies of parallelogram PQRS . Find the coordinate S.
asked by Anonymous 
math
Three pieces of wood are needed for a project. They are to be cut from a 90cmlong piece of wood. The longest piece is to be 3 times as long as the middlesized piece and the shortest piece is to be 10 cm shorter than the middlesized piece. Can this be
asked by Annie 
Physics 30
A particle accelerated by a potential difference enters a velocity selector. The particle travels staright when the magnetic field is 0.400 T and the electric field is 6.30 x 10^5 V/m. Once the electric field is turned off, a sensor determines that the
asked by Farah 
Math
4/x=x/9 Solve for x
asked by May 
operation management
A quoting department for a custom publishing house can complete 4 quotes per day, and there are 20 quotes in various stages in the department. Applying Little’s Law, the current lead time for a quote is how many days?
asked by jennifer 
college
i want a custom Business law case written. It's about a page or two.
asked by Mounika Kunnuri 
psychology
Trace the memory system from stimuli into longterm memory. Siscuss the features of each step and factors that enhance or impede information flow in each step of the process. Explain proactive and retroactive interference and how you might counteract their
asked by jade 
chemistry
when do we have pka=ph
asked by eng 
cultural diversity
what are some of the changes the United States has made to policies concerning the treatment of Muslim and Arabic members of society?
asked by sherrie 
calculus/Trig
Suppose you wish to express sin(3t) in terms of sint and cost. Apply the sum formula to sin(3t) = sin(t+2t) to obtain an expression that contains sin(2t)=sin(t+t) and cos(2t)=cos(t+t). Apply the sum formulas to those two expressions. Enter the resulting
asked by John 
chemistry; acids and bases
A common constituent of kidney stones is Ca3(PO4)2, calcium phosphate. Are kidney stones containing Ca3(PO4)2 more likely to form when the urine is acidic or when it is basic? Explain.
asked by kris 
chemistry
Only 6.1 mg of calcium oxalate, Ca(C2O4) dissolves in 1.0 L of water at 25 Celsius. What is the solubility product of calcium oxalate?
asked by kris 
speech writing
speech on educaton and its new terms
asked by dhairya 
Engineering
We estimate that today c.89% of homes can readily get a 2Mbps (or higher) broadband service from cable, ADSL or wireless means. This means that c.11%, or about 2.75m, homes cannot readily get a 2 Mbps (or higher) broadband service today. We believe the
asked by SRay 
Math help
Ormeau Park in Belfast has an area of about 25 cm2 on the same map. Calculate the area of the park on the ground. Give your answer in km2, correct to 2 significant figures
asked by SRay 
English
Can you tell me if the following sentences or phrases are possible? Thank you very much in advance. 1) I'm wearing a pair of blackt trainers withe the logo Nike on them, 2) Did you have to work this weekend? 3) I usually wear patterned, checked or striped
asked by Franco 
computer science
Current implementations of the ‘WiMAX’ wireless technology can support 2 Mbps connections at a distance of 10 km; calculate the propagation delay caused by the transmission time alone for a signal to travel 10 km.). Give your answer in seconds and in
asked by nep keto 
Electronics
How does a thyristor work when using ac voltage?
asked by Claire 
algebra
y^24y+3/y^2*4y+12/y^22y+1 2y(2y+3)/ I need some help with this problem please I can not seem to work it right.
asked by Elaine V 
Bio Please Help
For high quality representation of an analog waveform that varies between 10Hz and 100Hz, a digital data acquisition system will have to record data at what minimum frequency? a. 1000 sps b. 5000 sps c. 200 sps d. 100Hz e. 50Hz
asked by Alex 
Finance 301
The net present value always provides the correct decision provided that ____________
asked by akyshia 
algebra
x^2+x/x^26x+8/x^2+3x+2/2x^27x+6 can some help me please...
asked by Gregory 
math
find area of cirle 3.9cm radius to nearest tenth? a=pie 3.14 x r squared 3.14 x 3.9(15.21) 3.14 x15.21 =47.75 nearest tenth =47.8cm squared is this the correct answer?
asked by joshuah 
Math
The probability that a school bus is late is 0.04. How many times would you expect the bus to be late in a 5week period?
asked by CB 
math
solve: 5x^3=30x25x^2
asked by Anonymous 
math
X(X+5)(X4)=X^3
asked by Anonymous 
algebra
list all the possible rational zeros of f using the rational zero theorem. then find all the zeros of the function. 1. f(x)=x^26x+5 2. f(x)=x^3+x^210x+8
asked by kc 
algebra
Which of the following is equivalent to the expression (t2 − t − 6)(t − 3)−1 ? a. t3 − 9t +18 b. (t − 2)(t + 3) c. (t + 2)(t − 3) d. (t − 2) e. (t + 2)this is the answer how is the problem worked out?
asked by Mary 
Growth Chart
Does anyone know what the stature for age percentiles means? The perecent of people that are this certain height/age in the country??
asked by Anonymous 
chemistry
How much energy would be needed to vaporize 150 grams of ethanol when it is at its boiling point? Hear of Vaporization (kj/kg)...841.00
asked by Julia 
physics  electricity
Does the size of a 1,5V cell(battery) affect the internal resistance of a circuit containing: 3 different size batteries,multimeter,connecting wire,a light bulb resistor.How do i set up this experiment.I'm really lost, please help. Thank you in advance
asked by Luke 
computer science
Assuming that a typical popular music CD comprises 12 songs each of 8500 KB, what would the effective transmission speed need to be capped at in order to extend the download time to 2 hours? Express your final answer in bits per second, using scientific
asked by SRay 
English: Plagiarism, Clichés
Is a Cliché phrase considered Plagiarism? (the author is dead more than 390 years ago.) Is it okay to use it in a writing piece or poem? Should/will it be penalized or will you be given punishment if only used in 8th grade? Thanks
asked by Christopher 
US History (AP/CC)
I am studying the Great Depression and I understnad it pretty well except for all the factors dealing with Presidents at the time. Can you help please? How did Hoover respond to the Great Depression? How did the public view him, and use his name to define
asked by m&m 
math
Suppose that a natural number from 1 through through 11 inclusive is selected at random. What is the probability that the number selected is even if you know that it is prime?
asked by Tasha 
English
I need a character trait to describe someone who does not think or plan ahead. Thanks in advance!:)
asked by Emily 
math
What is the greatest amount of postage you can not pay using only 7 and 11 cent stamps?
asked by joe 
Human Services Management
There are four forecasting techniques described in the text. Briefly describe the merits of each one and identify the one you feel is most beneficial in forecasting for a human service organization.
asked by Erin 
English
In To Kill a Mockingbird what is the place that Tom Robinson has to go to after Tom was accused of being guilt? Prison? I remember reading that he tried to escape, climbing a fence of a ____?
asked by Anonymous 
math
Find the smallest positive whole number that when multiplied by 999 does not contain a 9 as one of its digits.
asked by Mike 
gr9math
how many sides does a polygon have if the sum of its interior angles are a) 1080 b) 1260 How could i figure this out without being able to know how many sides the polygon has?
asked by Rebecca 
Calculus
Resolve u=[3,4,7] into two orthogonal vectors, one of which is collinear with v=[1,2,3].
asked by Arima 
calculus
Now we prove Machin's formula using the tangent addition formula: tan(A+B)= tanA+tanB/1tanAtanB. If A= arctan(120/119) and B= arctan(1/239), how do you show that arctan(120/119)arctan(1/239)=arctan1?
asked by alex 
Calculus
Resolve u=[3,4,7] into two orthogonal vectors, one of which is collinear with v=[1,2,3].
asked by Arima 
calc
Three verticies of a parallelogram are D(2,1,3), E(4,2,0) and F(6.2,4). Find all possible locations of the fourth vertex.
asked by Emma 
biology
Leptin is a hormone that is produced by fat cells and plays a role in body metabolism and obesity. Studies have demonstrated that when obese mice are injected with leptin they quickly lose their excess weight. Interestingly, however, many overweight people
asked by Mary 
Calculus
The CN Tower is 553 m tall. A person is south of the tower, in a boat on Lake Ontario at a position that makes an angle of elevation of 100 degrees to the top of the tower. A second person is sitting on a park bench, on a bearing of 060 degrees relative to
asked by Anonymous 
Vectors
An airplane takes off at a ground velocity of 200 km/h toward the east, climbing at an angle of 14 degrees. A 20km/h wind is blowing from the north. Determine the resultant air and ground velocities and their magnitudes.
asked by Ariza 
Biology
What biogeochemical cycles go on in a tropical rainforest? Thank you!!
asked by Katy 
Chemistry
Ba140 has a half life of 13.0 days. What fraction of a sample of Ba140 will remain after 39 days? A. 1/8th B. 1/16th C. 1/2th D. 1/4th
asked by Charleze 
English
Would the word impaired be the same as the word crippled
asked by Anonymous 
Chemistry please help!!
The following reaction occurs in an aqueous acid solution: no3 + I > IO3 + NO2 In the balanced equation, the coefficient of water is A. 4 B. 3 C. 1 D. 5 E. 2
asked by Charleze 
Chemistryhelp please!
The halflife of Xe133 is 126 hours. Starting with 250. mg, after 500 hours around how many mg remain? A. 63 B. 16 C. 32 D. 125
asked by Charleze 
business
i need help finding a article that either relates to business productions, advertising or marketing  a canadian article plz asap thanx
asked by navroz 
Chemistry help please!
In the reaction: n2(g) + 3H2(g) > 2NH3(g), nitrogen is A. electrolyzed B. synthesized C. oxidized D. reduced e. None of these
asked by Charleze 
Chemistry
The most abundant isotope of the element nobellum has a halflife of 58 minutes. After 174 minutes the sample has a mass of .300 mg. What was the orignal mass of the sample? A. 1.20 mg B. 4.80 mg C. .600mg D. 2.40 mg
asked by Lily 
English
Thank you very much for your last corrections. I really hope you can check these sentences, too. 1) I'm wearing a dark blue plain (?) zipup hoodie. 2) I'm of white skin. Or I'm white or I have got a fair complexion. 3)You should help your mum with the
asked by Franco 
English
What is it when the oppressor and the victim go to court and the oppressor is found guilt, the victim has received or found their _________? If it is justice, is there another word for it?
asked by Anonymous 
English
I forgot to include the following sentences. 1) Among English teenagers are popular skinny jeans. 2)Gulliver takes an aversion for every thing at home because European society is losing its values.
asked by Franco 
statistics
To reduce theft, the Meredeth Company screens all its employees with a lie detector test that is known to be correct 90 percent of the time (for both guilty and innocent subjects). George Meredeth decides to fire all employees who fail the test. Suppose 5
asked by bob 
English
Would this make sense: Tom found his justice.
asked by Anonymous 
English
1) In "To Kill a Mockingbird" does Mr. Underwood own the Maycomb Tribune? Does he control what goes in the Maycomb Tribune and what doesn't? 2) Is there another newspaper in Maycombe other than the Maycomb Tribune?
asked by Anonymous 
chemistry
How many g NO gas can be produced from 120 mL of 2.80 M HNO3 and excess Cu? 3Cu(s) + 8HNO3(aq) > 3Cu (NO3)2(aq) + 4H2O(l) + 2NO(g)
asked by helen 
com 220
I am stuck on my assignment quoting, summarizing, and paraphrasing sources. I have my sources but I am not to sure how to fill out the appendix e? It is asking me to , and Can you give me a sample of what I am supposed to do?
asked by Nikol 
11th grade
For a child's birthday party, her family perpares goodies bags for the guests. each goodie bag contains 1 notepad, 2 pencils, 1 whistle, 2 cans of silly strings, 3 gummy bear packs, and 1 yoyo. their current inventory is 30 notepads, 50 pencils, 28
asked by Mickey 
Chemistry
How much heat, in joules, is necessary to raise the temperature of a 3.5g piece of aluminum from 22 degrees C to 37 degrees C? (J/g*C = .90 ; cal/g*C = .21)
asked by Kieth 
chemistry
C6H12O6(s) +6CO2(g) +6H2O9g) 1) given 2 moles of glucose and 14 moles of O2, how many moles of CO2 could be produced? 2) which is the limiting reactant ? 3) how many moles of the excess reactant remain?
asked by Mickey 
chemistry
If 11.53g hydrogen sulfide reacts with 3.97g oxygen gas in the following reaction: 2H2S + O2 + H2O which is the maximum mass of sulfur that can be produced? which is the limiting reactant ? which reactant is in excess ? by how many grams?
asked by Charile 
Chemistry
Identify each enthalpy change by name and classify each change as exothermic or endothermic. a)1 mol C3H8 (l) ==> 1 mol C3H8 (g) b)1 mol Hg (l) ==> 1 mol Hg (s) c)1 mol NH3 (g) ==> 1 mol NH3 (l) d)1 mol NaCl(s) + 3.88kJ/mol ==> 1 mol NaCl (aq) e)1 mol NaCL
asked by Sal 
francis lewis high
a person with an injury to the extrinsic muscles of the eye would find it difficult to
asked by michelle jackson 
science
all of the following are parts of the retina except rods, cones, fovea, lens
asked by michelle jackson 
chemistry
Suppose 50.0 grams of magnesium reacts with 71.0 grams of hydrochlorie acid according to the foloowing equation: Mg(s) + 2HCl(aq) > MgCl2(s) + H2(g) 1) What is the maximum mass of magesium chloride that can be produced? Maximum mass of magnesium chloride
asked by Charile 
Chemistry
Find the approximate pH range suitable for the separation of Fe3+ and Zn2+ by precipitation of Fe(OH)3 from a solution that is initially 0.048 M in both Fe3+ and Zn2+.
asked by Monica 
Grade 12 Eng.
How can I type a website in MLA format on an annotated bibliography?
asked by AL 92 
7th grade
Susan has red, blue, and yellow sweaters. Joanne has green, red, and white sweaters. Diane's sweaters are red, blue, and mauve. Each girl has only one sweater of each color and will pick a sweater to wear at random. Find the probability that each girl
asked by Margaret 
college
How do i find the slope of the line containing the pair of points (5,4) and (7,10)slope m= what
asked by kim 
Math
Jack decides to ride the ferris wheel. He board at 1m and is the last person on the ride. The diameter of the wheel is 16m and it takes 8sec for one complete revolution. Find the equation that represents Jack's height in relation to time. Then use the
asked by Sarah 
Vectors
Determine a unit vector that is orthogonal to both u=[3,4, 1] and v=[2,3,4].
asked by Ariza 
CALCULUS
Show that the quadrilateral with verticies at P(0,2,5), Q(1,6,2), R(7,4,2), and S(6,0,5) is a parallelogram.
asked by Anonymous 
calc
A parallelogram has area 85cm squared. The side lengths are 10 cm and 9 cm. What are the measures of the interior angles?
asked by Thomas 
precal
How do you solve: sin[arccos(2/7)] ?
asked by anonymous 
MARKETING
Which of the following is true? A. The product P in the marketing mix stands for both physical goods and tangible B. The product P in the marketing mix stands for only physical goods. C. The product P in the marketing mix stands for both physical goods and
asked by ILEANA 
algebra
The Answer is (32/20)^2=2.56times the kinetic enrgy at 20 m/s 2.56x4500 Problem The kinetic energy (k) of moving object varies jointly with it mass (m) and the square of its velocity(v). If an object has a mass of 22.5 kilgorams and moving with a velocity
asked by rosa 
Geometry
8)Suppose that a given parallelogram is not a rhombus or a rectangle. Which of the following can you conclude about this parallelogram? A) Its diagonals are perpendicular bisectors of each other. B) It is a square. C) Its angles are not all congruent. D)
asked by Don 
Math
Which of the following conditions does not ensure that a quadrilateral is a parallelogram? A) Both pairs of opposite sides are parallel. B) The diagonals bisect each other. C) A pair of opposite angles are congruent. D) All of the above Can anyone tell me
asked by Justin 
Chemistry
The problem on my homework is: What mass in grams of iron metal is required to react with 2.50 L of .1500 M of sulfuric acid to produce 18.35g of iron (III) sulfate? please help!
asked by Lauren 
Math
Suppose that a given parallelogram is not a rhombus. Which of the following can you conclude about this parallelogram? A) Its diagonals are perpendicular bisectors of each other. B) It is a square. C) Its sides are not all congruent. D) All of the above I
asked by Anthony 
MARKETING
Product is NOT concerned with: A. Packaging. B. Quality level. C. Branding. D. Wholesale price.
asked by ILEANA 
Chemistry
Calculate the enthalpy change (delta H) in kJ for the following reaction. 2Al(s) + Fe2O3 (s) ==> 2 Fe(s) + Al2O3(s) use enthalpy changes for the combustion of aluminum and iron. 2Al(s) + 3/2 O2(g) ==> Al2O3(s) Delta H: 1669.8 kJ 2Fe(s) + 3/2 O2(g) ==>
asked by Kim 
Math
The inside of your refrigerator might be set to a temperature of about A) 2.9°C B) 29°C C) 2.9°C D) 43.5°C I think the answer is C because that would put the temp in the 30's.
asked by Carmen 
Chemistry
What is the standard heat of reaction (Delta H^0) for the decomposition of hydrogen peroxide? 2H2O2 (l) ==> 2H2O (l) + O2(g)
asked by Jack 
management
Think of a recently completed group project that you have been involved in. This project may have been a student project, a group project, or an extracurricular project. Briefly describe the situation and choose one of the following to post on the
asked by Anne 
algebra
given g(x)= 12  5x Find g(5).
asked by Henry 
Engish
What does this mean"would have been granted a waiver of tuition for his son."
asked by Sara 
introductory algebra
I had these problems on my test and for some reason got them wrong. Here are the problems: Solve: xy=9 x+y=1 The test states that the answer is (5,4) I've checked ,y work and used substitution to solve this and still get x=4, y=5. The second problem is:
asked by jose 
chemistry
do we have buffering region and ph=pka in any of these conditions: strong base vs strong acid strong base vs weak acid weak base vs strong acid weak base vs weak acid
asked by eng 
chemistry
If the mole fraction of sulfuric acid (H2SO4) in an aqueous solution is 0.325, wat is the percent by mass of H2SO4?
asked by Lola 
History
I need to find information on the differences and similarities of art deco and pop art. Any suggestions?
asked by Linda 
math
how many side and angles does a trapezoid angle, hexagon, and pentagon have? solve each equation: 13 + y = 3, 3y + 8=3, y over 3= 9 need help with + &  rules for adding whole numbers, decimals, fractions and integers ( do not understand) and rule for
asked by joshuah 
English
Can you please check this sentence for me, please? Thank you for your invaluable help. 1) I like this singer for his determination and energy transmitted (?) during his concerts. In spite of his illness, which affected the last years of his life, he
asked by Franco 
english
Can anyone explain to me exactly why the phrase "Let me explain you something" is grammatically incorrect?
asked by sims 
mgt 435
What can leaders do to be more prepared for employee reactions to change?
asked by meshelle 
math
need help with adding whole numbers, decimals, fraction and integers. do not understand when answer should be + or . what is the rules?
asked by joshuah 
Food engineering/biology
Hey Can anyone help me out with this problem. For part a i understand i plot microbial numbers against time on semi log paper to determine D value for the two temperatures. But i'm unsure how to do part b. Alicyclobacillus acidoterrestris is a quite hat
asked by Jennifer 
Spanish
My spanish teacher assigned us a project to write a children's book. I wrote a sorta different version of the boy who cried wolf. Can someone please help me correct my grammar? :] (p.s. each number is a different page) El Muchacha Que Grito El Perro 1.
asked by Pauline 
math/trigonometry
solve this equation by completing the square. x^2+4x21=0
asked by Sally 
LIB
the threat of default can often win a third world country concessions from its lenders? true or false
asked by tammy 
economics
With proportional income tax, a. The tax multiplier equals (MPC)(1MPC) b. The tax multiplier equals –MPC/(1MPC) c. The spending multiplier equals (MPC)/(1MPC) d. The spending multiplier equals 1/[1MPC(1t)] e. The spending multiplier equals
asked by Sarah 
Medical Terminology
Could someone please check my answers. If they are incorrect could you please give me the correct answers or tell me where I could find them.. Thanks... 1. A patient has unrealistic thoughts and behaviors despite an awareness that they’re inappropriate.
asked by Kelsey 
9th grade
kyle just started a new job that pays $7 per hour. He had been making $5 per hour at his old job. Kyle worked a total of 54 hours last month and made $388 before deductions. How many hours did he work at his new job?
asked by autumn 
algebra
a+ sqrt 2 = 7 Solve the question for both the exact irrational root and its rational approximation to the nearest tenth. THANK YOU FOR YOUR TIME AND HELP
asked by april 
math
Today the Center City baseball team scored 5 runs. The day before yesterday they scored w runs. How many runs did they score in these two days?
asked by Lisa 
Physics
Sally travels by car from one city to another. She drives for 28.0 min at 63.0 km/h, 50.0 min at 40.0 km/h, and 50.0 min at 43.0 km/h, and she spends 13.0 min eating lunch and buying gas. Find the trip's average speed and total distance traveled...
asked by Jackie 
Algebra
Please help me solve this problem the kinetic energy (k) energy of a moving object with varies jointy with it mass (m) and the squareo of its velocity (v). If an object has an mass of 22.5 kilograms and moving with a velocity of 20 meters per secomd has a
asked by rosa 
English/S.S
Can anyone post words that are the same as "split". By split I mean, splitting a group of people because of their diverse opinions on imperialism.
asked by Anonymous 
Algebra
A theater ticket for adults is a dollars and the price of a child's ticket is C dollars. If 29 adults and 45 children attend the theater one night, how much money did the theater make? Cx45 is this the answer?
asked by Lisa 
Chemistry
Consider the reaction below: 4NH3(g) + 3O2(g) > 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of oxygen?
asked by Scott L. 
Chemistry
Consider the reaction below: 4NH3(g) + 3O2(g) > 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of oxygen?
asked by Scott L. 
Algebra 2
Can someone help me figure these out? I think if someone can explain how to do one of them then I'll be able to do the other. please and thank you. Suppose θ is an angle in standard position whose terminal side is in the given quadrant. For each function,
asked by Ana 
math
The area of a rectangle of length l and width w is given by the formula A = lw. Ann's backyard is rectangular with a length of 36.8 yards and a width of 27.9 yards. Find the area of Ann's backyard. 36.8x27.9=1026.72area of ann's backyard can someone please
asked by Lisa 
algebra
1/(x2)  1/x= 1/3
asked by Anonymous 
science
what is a dormancy? i have to write one paragraph.
asked by komal 
math
$36.80 + 56%=
asked by anthony 
trig
Find all values of [theta] in the interval 0°
asked by Libby 
Algebra
Determine if the relationship represented in the table is linear. If it is linear, write an equation. how do you determine if a table is linear here is the table I am looking at.... x 2 5 7 10 12 20 y 3 0 2 5 7 15 please guide me in the right direction...
asked by Lisa 
Algebra
4xsquared  7x  2 = 0 Solve the quadratic function
asked by Lisa 
Geom
What is the approximate angle of elevation when a person is 74" tall and the person's shadow is 70" long?
asked by Jackie 
soc
do the consequences of punishment provide any beifits for criminals and society
asked by amber 
soc
which type of punishment deter crime most effectively
asked by amber 
Chemistry
At a particular temp, K = 1.6 x 10^5 for the reaction: 2SO3(g) 2SO2(g) + O2 (g) If 4 mol of SO2 and 2 mol of O2 are placed into a 2.0L flask, calculate the equilibrium concentrations of all species. I set up an ICE table with SO3 to start with 0M and SO2
asked by Scott L. 
soc
which type of punishment deters crime most effectively. and why. retribution, deterrence, rehabilitation and societal protection.
asked by amber 
Chem/science
What is the conjugate acid of HC5H6O4?? Is it HC5H6O42?? thanks andy...
asked by Andy 
Math
A basketball player has a 40% shooting average from the freethrow line. If she takes two free throws, estimate the probability that she will make both of them. Use the following list of digits which was taken from a table of random numbers. Let the digits
asked by Carmen 
soc
does punishment deter crime and why
asked by amber 
English
I need an adjective to describe someone who does not like to take the lead, or initiative. Thanks in advance!
asked by Emily 
edit plz!
Everyone has at least one interesting and/or important person they know in their life that they admire, just like that I admire the most is my one and only big brother, that there are many positive characteristics I can use to describe him. I have stated
asked by Thara! 
English
1. He wants to take a lot of pictures of baby. 2. He wants to take a lot of pictures of the baby. 3. He wants to take a lot of pictures of babies. 4. He wants to take a lot of pictures of a baby. (Are they all grammatical? What about #1? Is Sentence 1
asked by rfvv 
physics
white light goes through a magenta filter, then a cyan filter. draw each step on a diagram. what colors is white light comprised of?
asked by jasmine 
Algebra
find three consecutive positive even integers such that the product of the second and third integers is twenty more than ten times the first integer. [only an algebraic solution can give full credit]
asked by Alexis 
math
Find the other endpoint of a line segment with the given midpoint and one endpoint. Endpoint: (0, 0); Midpoint: ( 2, 8)
asked by Lisa 
Algebra
A password consists of three digits, 0 through 9, followed by three letters from an alphabet having 26 letters. If repetition is allowed but repitition of letter is not allowed, determine the # of different passwords that can be made. I have....
asked by Ta'Nesha 
Math 7th grade
Susan has red, blue, and yellow sweaters. Joanne has green, red, and white sweaters. Diane's sweaters are red, blue, and mauve. Each girl has only one sweater of each color and will pick a sweater to wear at random. Find the probability that each girl
asked by Margaret 
Algebra
Under what situation would one or more solutions of an equation with rational expressions be unacceptable? Need examples.
asked by Sara 
Enviroment Science
What are the risk characterization of malathion? I have looked and read and i just do not understand!! Please help someone!!
asked by Lisa 
Algebra
Find the midpoint of the line segment having the given endpoints. ( 8, 4) and ( 7, 8)
asked by Lisa 
Algebra
so the answer for 3 consecutive positive even integers such that the product of the second and third integers is 20 more than ten times the first integer........the answer is n=6 and n=2
asked by Alexis 
german
du hast durchfall??
asked by Alexis 
chemistry
Explain why a suspension is considered a heterogeneous mixture.
asked by cindy 
Chemistry
Calculate the enthalpy change (delta H) in kJ for the following reaction. 2Al(s) + Fe2O3 (s) ==> 2 Fe(s) + Al2O3(s) use enthalpy changes for the combustion of aluminum and iron. 2Al(s) + 3/2 O2(g) ==> Al2O3(s) Delta H: 1669.8 kJ 2Fe(s) + 3/2 O2(g) ==>
asked by Kim 
Chemistry
Identify each enthalpy change by name and classify each change as exothermic or endothermic. a)1 mol C3H8 (l) ==> 1 mol C3H8 (g) b)1 mol Hg (l) ==> 1 mol Hg (s) c)1 mol NH3 (g) ==> 1 mol NH3 (l) d)1 mol NaCl(s) + 3.88kJ/mol ==> 1 mol NaCl (aq) e)1 mol NaCL
asked by Sal 
chemistry
What is the standard heat of reaction (Delta H^0) for the decomposition of hydrogen peroxide? 2H2O2 (l) ==> 2H2O (l) + O2(g)
asked by Jack 
statistics
A sociologist interested in cultural differences compared women of two ethinic groups on a Role Approval Index (high scores mean high degrees of approval of one's social role). The results are as follows: Ethnic Group A: N = 15 M= 55 S2 = 6.5 Ethnic Group
asked by Anonymous 
ACCOUNTING
cost,volume and profit formulas
asked by tony 
Math
suppose that you know that a given parallelogram has at least one right angle and at least two adjacent sides that sre congruent. Can you make a conclusion about what kind of parallelogram this is? I say no because it can be a square or a rectangle.
asked by Don 
algebra
if one card is selected at random from a standard deck of 52 cards, what is the probability of choosing a black card or a king?
asked by Jenny 
Math
What is the measure of the point angle for a starshaped polygon with 8 points and a dent angle of 130 degrees?
asked by Anthony 
geography / 8 grade
What two major political groups make up the caribbean countries? please help .thanks
asked by natalie 
english
Using the four basic plot elements from the dramatic plot (exposition, complication, climax, resolution), how would I outline the progression of the main conflict in "The Miracle Worker"?
asked by Emily 
chemistry
contrast ionic and molecular substances in terms of the types of attractive forces that govern their behavior
asked by jane 
Biology
Divide the Cnidarian specimen into two groups. What feature did you use to make your divison? I just need a two sentence answer not a essay.
asked by Christina 
Chem/science
what is the ph of 2.62 x 10 ^2 M HBr solution? I get 5.94 is that right? thanks andy
asked by Andy 
chem can u check answer please
the solubility of silver sulfate in water is 0.223%(w/v) at 35 degrees celsius.calculate the solubility product of this salt at this temp. I got 1.46 X 10^6 M is this right please thanks Andy
asked by Andy 
Chemistry
I don't know how to start this problem. Someone can help me please. One dm3 of a solution was prepared containing 0.0040 mole of Pb(NO3)2. The Ksp of PbCI2 for the existing conditions is 2.4 x 10^4. From the list below, choose the smallest numbers of
asked by Susie 
Algebra 2
Can someone help me figure these out? I think if someone can explain how to do one of them then I'll be able to do the other. please and thank you. Suppose θ is an angle in standard position whose terminal side is in the given quadrant. For each function,
asked by Ana 
chem can u check answer please
what is the hydrogen ion concentration of an aqueous solution with a pOH of 9.262? I got 5.47X 10 ^10 is this correct? Thanks Andy
asked by Andy 
chem can u check answer please
Which is NOT a chareteristic property of acids? A: react with carbonate to yield CO2 gas B: taste sour C: neutralize bases D; turns litmus red to blue E:reacts with metal to yield H2 gas I reckon its D because isnt it the other way around ? Blue to red
asked by Andy 
8th grade
How do you diagram the following sentence: Who bravely dares must soemtimes risk a fall.
asked by Kiana 
Edit plz!
Everyone has at least one important person they know in their life that they admire, just like that I admire my one and only big brother the most, that there are many positive characteristics I can use to describe him. I have stated both positive and
asked by Thara! 
Math
What is the measure of the point for a star shaped polygon with 8 points and a dent angle of 130 degrees? How do I work this out?
asked by Anthony 
Math
An aluminum cylindrical juice can has a height of 4 in. and a radius of 6 in. How many square inches of aluminum are needed to make the can?
asked by kaitlyn 
math
Find the ratio of the volume of the cylinder to the volume of the hemisphere, given that the height, h, of the cylinder is equal to the diameter, d, of the hemisphere.
asked by Maghan 
Algebra
Use the discriminant to determine how many real number solutions the equation has. t^2 + 8t + 16 = 0
asked by Don 
CALCULUS
A triangle has verticies A(2.1,3), B(7,8,4), and C(5,0,2). Determine the area of triangle ABC.
asked by Thomas 
soc
what would be a intro that i could use about does punishment deter crime
asked by amber 
calculus
Write the complex number 4 x 3^1/3  4i in exponential form. I'm not sure how I use euler's formula to solve for this. A brief explanation would be greatly appreciated.
asked by Justin 
Vectors
A 65kg boy is sitting on a seesaw 0.6 m from the balance point. How far from the balance point should a 40kg girl sit so that the seesaw remains balance?
asked by Anonymous 
com150
I can't find anything on the internet to support my subject in my expository essay can anyone help my topic is "Explain the practical value of studying chemistry". thanks
asked by Drew 
chemistry
if you have 720 g of the compound CaBr2 how many moles of it do you have
asked by laquan 
accounting info. systems
The last step in the revenue cycle is cash collections. The accounts receivable department must know when customers pay their invoices, yet segregation of duty controls dictate that the collection and recording functions be kept separate from each other.
asked by Joe 
Algebra
Write an equation of the line satisfyingg the given conditions. Slope = 2/3; yintercept of 2
asked by Kate