Questions Asked on
March 31, 2015

BUS math
Bari Jay a gown manufacturer received an order for 600 prom dresses from China. Her cost is $35 a gown. If her markup based on selling price is 79%, what is the selling price of each gown? Round to the nearest cent.
asked by DEE 
MATH
716{(1950/5 of 3)(4+217/7)}
asked by AISHWARYA 
physics
A copper atom has 29 electrons revolving around the nucleus. A copper ball has 4x10^23 atoms. What fraction of the electrons be removed to give the ball a charge of +9.6uC?
asked by David 
Math
1. What are the mean, median, mode, and range of the data set given the altitude of lakes in feet: 11, 28, 17, 25, 28, 39, 6, and 46? A. Mean = 25, Median =  26.5, Mode = 28, Range = 40*** B. mean = 25; median = 40; mode = 26.5; range = 28 C.
asked by Abby 
Chemistry
A 0.3423 g sample of pentane, C5H12, was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.000 kg of water contained therein rose from 20.22°C to 22.82°C. The heat capacity of the calorimeter is 2.21 kJ/°C. The heat capacity of
asked by Cassandra 
Mathematics
The distance to the nearest 100,000 km from the earth to the moon is given as 400,000 km. The average speed to the Nearest 500km/h is 3500km/h. Calculate the least and greatest time it takes the rocket to reach the moon I figured out the formula speed =
asked by Fay 
Algebra proof
Prove that if w,z are complex numbers such that w=z=1 and wz\=1, then w+z/1+wz is a real number I so far i have determined that w and z both have to equal less than one, but i cannot figure out how to prove this. if wz does not equal one it must mean
asked by Gem 
science
The alleles for brown eyes (B) are dominant, while those for blue eyes (b) are recessive. If Lesley’s mother has the genotype BB and her father has the genotype bb, what is Lesley’s genotype? What is her phenotype?
asked by james 
prob. & stat
suppose 240 nursing students took a certification test that is worth 140 points. the five number summary for the scores is shown here. about how many students had a score of 130 or less min. value=68, Q1=110, median=125, Q3=130, maxvalue=138
asked by sweet12 
algebra
the graph of a proportional relationship passes through (12,16) and (1,y) find y. can someone please walk me through this?
asked by zay 
reading and writing
When you write your ideas quickly and don’t worry about punctuation, what writing strategy are you using? A. Narrowing B. Mapping C. Styling. D. Freewriting my answer is d.
asked by Clare 
Statistics
It is pretty common across most schools to find the grades at the MBA level divided between A's and B's. As such, you expect the mean GPA to be around 3.50. Using the sample of 200 MBA students, conduct a onesample hypothesis test to determine if the mean
asked by Leticia 
Math
Between 6 A.M and 10 A.M the temperature rose by 5F. Between 10 A.M and 2 P.M the temperature rose by 6F. Between 2 P.M and 6 P.M the temperature rose by 0C. Would you be able to tell how much the temperature rose since 6 A.M? Why or why not?
asked by Bun 
reading and writing
Ron and Quincy are organizing the facts in their essays. Ron says putting details in spatial order means to organize them according to the order in which they happened. Quincy says it means putting the details in order according to their location. Who is
asked by Clare 
science help check
3. A metal from group 1 and a nonmetal from group 17 are? A. Not likely to bond B. Likely to form a covalent bond C. Likely to form a ionic bond D. Likely to form a metalloid is it c pls help me
asked by Oscar 
Geometry
The lengths of the sides of a triangle are 6 cm, 7 cm and 9 cm. In a similar triangle whose perimeter is 110 cm, what is the length of the longest side, in centimeters? i know that the first triangle's perimeter is 22, but i'm not sure how this will help
asked by Gem 
Algebra 2
A sound wave is modeled with the equation . y=1/4cos 2pi/3treta a. Find the period. Explain your method. b. Find the amplitude. Explain your method. c. What is the equation of the midline? What does it represent? A The period can not be found because
asked by Ciaria 
math help
how do prove that this equation has rational roots for all rational values of K 3x^2+kxk=3x
asked by jennifer 
chemistry
How much carbon dioxide measured at 25.0◦C and 821 Torr would be produced by the combustion of 319 g of glucose (C6H12O6)? 1. 40.1 L 2. 20.2 L 3. 241 L 4. 3.37 L
asked by Evelyn 
Trigonometry (identities)
Simplify: 1. sin(α+β)+sin(αβ) 2. (8cosxsinx+4cos2x)^2 + (4cos^2x+8sinxcosx)^2 3. sqrt(sin^4xcosx) * sqrt(cos^3x)
asked by Anna 
Math
2. Given the data 12,39,21,18,24,17,12,25 a what is the outlier in the data? b what is the mean with the outlier? c what is the mean without the outlier A. 12;21;18.4 *** B. 12; 18.4; 21 C. 39; 21; 18.4 D. 39; 18.4; 21
asked by Abby 
Algebra
You pay $1 to rent a movie plus an additional $0.50 per day until you return to the movie. Your friend pays $1.25 per day to rent a movie. a: make tables showing the costs to rent a movie up to 5 days. $1.50 $2.00 $2.50 $3.00 $3.50 $1.25 $2.50 $3.75 $5.00
asked by Sammi 
physics
At 7.15 cents per kilowatthour, what does it cost to leave a 75.0W light burning 24.0 hours a day?
asked by Jaimi 
reading and writing
To narrow a general topic you've selected, which pair of techniques is most likely to be effective? A. Freewriting and questioning B. Using a branching diagram and consulting your journal C. Questioning and choosing an issue that interests you D. Branching
asked by Clare 
Algebra 2
What are the points of discontinuity? Are they all removable? Please show your work. ￼￼￼ y=(x5) / x^2  6x +5
asked by Ciaria 
pls help me dr.bob22 science
Which of the following demonstrates that reactants and products are chemically different? A.Zn + 2HC1 = 2HCl + Zn B. Zn 2HCl = H2 + 2 nCl2 C. H20 + C4H10 = H20 + C4H10 D. C4H10+ H20= C4H10 +H20 is it b pls help me
asked by Oscar 
Physics
Which best explains why openness is important to the progress of science?
asked by JaQua 
math
given that the rectangle above has a perimeter of 34 units, find m
asked by nick 
science help.. pls help me dr.bob22 or damon
In a water molecule, 2 atoms of hydrogen and 1 atom of oxygen share electrons. A _______ bond, is found in water molecule is it chemical bond pls help me
asked by Oscar 
science PLZ HELP
electric charges that are different A) attract each other B) repel each other C) exist in pairs D) do not interact Magnetic field lines around a bar magnet A) are only perpendicular to the magnet B) spread out from one pole and curve around the other C)
asked by Anonymous 
Math
4. Which explains why the sequence 81, 3, 1/9,... is arithmetic or geometric? A)The sequence is arithmetic because it decreases by a factor of 1/27 B)The sequence is geometric because it decreases by a factor of 1/27 C)The sequence is arithmetic because it
asked by Jeff the Killer Hates Math 
calculus
cos2x=secx find x
asked by Cody 
chemistry
4.90 gram of KCLO3 is heated. it shows a weight loss of 0.384 gram . what is he percent of original KCLO3 which has decomposed .
asked by shubham 
Maths
Ann bought 5/8kg of tomatoes to make a salad dish.2/5 of the tomatoes were rotten and the rest were fresh.What was the mass of fresh tomatoes.
asked by Asha 
math
Pre algebra what should you do if you cant sleep
asked by lol2004 
calculus
The operating cost, C, in dollars per hour, for an airplane cruising at a height of h metres and an air speed of 200km/h is given by: C = 4000 + h/15 + 15000000/h for the domain 1000 ≤ h ≤ 20000. Determine the height at which the operating cost is at a
asked by sierra 
poetry
what is the prose paraphrase of the poem The Unknown Citizen
asked by dixie 
Science
What is the concentration of NH3 in 0.250M solution of NH4Cl?
asked by Jeet shah 
science help.. pls help me dr.bob22 or damon
Sodium Chloride is formed when atoms lose and gain electrons Carbon monoxide is formed when atoms share electrons. In both substances atoms are held together by a(n) is it chemical bond pls help me
asked by Oscar 
precalculus
Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)?
asked by jk 
Webster University
Your company is considering buying a company that is forecasted to have earnings as shown below. Assuming these estimates to be perfectly accurate, what is the present value of this stream of earnings? Assume an interest rate of 5.5% Year 1 $50,000 Year 2
asked by T Smith 
basic programming principles
2.Write only the select case statements for the following problem statement. The marital code of a person is stored in the variable called marCode. Display the corresponding description on the screen. Provide for an incorrect marital code Marital Code S
asked by victor 
Readin Reed plz read
Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it. Reed u helped me yesterday for the hook!
asked by Anonymous 
AP Exams?
I am in AP Chemistry and AP U.S Hisotry and I have planned on taking the tests. So far I have made an A+ in APUSH, but I an B in AP Chem. I've done kinda bad on the tests I've taken in there and I don't think I will do good on the Ap exam. I think I have a
asked by Anonymous 
Triangles
Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long.
asked by usman 
MATH
How could you find out which weighs more, one ton of pillows or one ton of bowling balls?
asked by Bun 
algebra
Find the square roots of 3+4i. The answer should be in the form a+bi? The answer that i got was 2+i, but it did not seem to work. Any advice on what might be happening in this problem, and how to solve it?
asked by Gem 
English
I need help answering some To Kill A Mockingbird questions 1.When Scout is talking about the Ewells' living conditions what is her tone? Is it sympathetic or disparaging or objective? I think it's sympathetic 2. When the story is talking about Mayella 's
asked by Jasmine 
art
1.which artist is most likely to create a floor plan? a)visual effects designer** b)architect c)landscape architect d)cartoonist
asked by #HOMEWORK 
english
What do the pauses in Arsat’s story, which occur when he speaks of Diamelen, indicate about Arsat’s emotional state?
asked by israel 
science
a life cycle in which organisms switch back and forth between diploid and haploid stages
asked by miya 
chemsistry
If one pound (454g) of hexane combusts with 185 grams of oxygen which reactant is the limiting reactant and how many grams of carbon dioxide are produced? how do I do this? How do I set it up?
asked by sarah 
reading and writing
A _____________ should make clear what the paragraph is about and express a view about the subject matter. A. title B. conclusion C. topic sentence D. thesis statement my answer is c.
asked by Clare 
Chemistry
A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ).
asked by JUNDY 
history
I have to create a mind map about the Great Depression. there are seven factors contributing to the effect. I need help creating a visual aspect to show the causes and effect. ex. (it's taken) a hockey net that says Great Depression and different sports
asked by Leo 
Psychology
Help me create a mnemonic device to remember the Four Basic Units of Language: Phonemes, Morphemes, Syntax, and Semantics
asked by Kelsey 
Economics
Which is an example of thinking at the margin? A. figuring out what you will give up and what you will gain by hiring a new worker B. thinking about whether or not to go on a vacation to a warm beach C. drawing plans to build an extra room on an old home
asked by Parker 
CHE
A sample of water was tested with AgNO3, and gave a white precipitate. A.What ion was most likely present? B.What chemical would be the most likely source for the ion? So far I have that Chloride ion was most likely present and detected by AgNO3, but I
asked by azz 
English 12
The detective asked me if I had heard any strange noises the night before.
asked by M.Phipps 
Math
What percentage of the boys chose walking? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 45% C. 25% D. None of these Is the answer A? Thank you
asked by Nikita 
Math
Lamar wants to slice a 35ounce tomato and a 28ounce tomato into pieces of the same weight. He finds the greatest common factor of the tomato weights to determine the weight of each piece. What is the greatest common factor of 35 and 28? Show your work.
asked by Help 
english
can you please tell me if i'm correct or not? write A if the sentence is active or P if it is passive. 1. max and his uncle towed the car to a downtown garage. P 2. lightning hit our house during last night's storm. P 3. the opening remarks were made by
asked by d 
Art Pls help
Which task is typical for fashion designer? A) designing a storyboard B) researching new trends*** C) organizing an exhibition D) creating a blueprint Patterns and colors on 17th to 19th century kimonos were used to identify the hometown of which type of
asked by Dr.pepper 
science help.. pls help me dr.bob22
A metal from group 1 and a nonmetal from group 17 are? A. Not likely to bond B. Likely to form a covalent bond C. Likely to form a ionic bond D. Likely to form a metalloid is it c pls help me pls help me
asked by Oscar 
Math
Find the value of the following matrix's. 1.) [5 2 8 7] 2.) [3 4 7 9]
asked by Heather 
Physical sci
A copper rod is 22 mm long at room temperature (20c). What length does it expand to when placed in a 757 degrees Celsius furnace?
asked by Millie 
Math
Juanita invests $3,500, at 8% interest, compounded annually for 4 years?
asked by sally 
math  linear equation
How do I write a system of equations that is linear and graph? Thanks
asked by hy 
Statistics
In the past year, Jack's Pizaa Resturant grossed more than $1500 a day for about 83% of its business days. Suppose 8 days are randomly selected, approximate the probablity that exactly 6 days will gross more than $1500 in a day.
asked by Kim 
Math
What percentage of the students who chose biking were girls? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 37.5% C. 40% D. none of these Is the answer D? Thank you
asked by Nikita 
science help.. pls help me dr.bob22 or damon
Dalton's ideas that atoms cannot be divided into smaller parts was disproved by the discovery of the_____ is it electrons
asked by Oscar 
Physics
If 3.25x103 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge
asked by Bill 
business math
Anny invests $8,500, at 6% interest, compounded quarterly for 12 years?
asked by sally 
statistics
If the null hypothesis is rejected at the .01 alpha level, it will be rejected at the .05 alpha level. Is this correct?
asked by Anonymous 
Algebra 2
In ￼ ,
asked by Ciaria 
chemistry to MathMate
Chemistry  CJ, Tuesday, March 31, 2015 at 10:53pm I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.
asked by CJ 
precalculus
Let u have a length of 20 and direction of 60 degrees, and v= 5i3j what is u? what is abs(2vu)?
asked by jk 
precalculus
Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)?
asked by jk 
Physics
A uniform cylindrical spool of mass M and radius R unwinds an essentially massless rope under the weight of a mass m. If R = 12 cm, M = 400 gm and m = 50 gm, find the speed of m after it has descended 50 cm starting from rest. Solve the problem twice: once
asked by Nora 
Math
Which of the following types of information is NOT suited for display on a scatter plot? A. Relationship between age and number of books read in a year. B. Relationship between height and shoe size. C. Relationship between calories sonsumed and body
asked by Nikita 
precalculus
Let u= and v= A. what is the angle between u and v? B. find projvU C. reoslve u into u1 parallel to v abd U2 perpendicular to v.
asked by jk 
physics
A man of mass 90kg carries a block of mass 20kg up a vertical ladder at length 5m. What work has the woman done. (take g 10m /s)
asked by omodele queen 
Chemistry
Nanotubes are rolled up cylinders of graphite with diameters of about 1nanometer, and lengths in micrometers. (I) If a nanotube is 5 micrometers long, how many diameters does this represent?
asked by CJ 
Art
French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an
asked by anonymous 
us history
Which party endorsed the wilmot proviso?
asked by Trent 
reading and writing
Paddy and Clare are writing effective conclusions. Paddy's conclusion will summarize his main point and reaffirm his theses statement. Clare's conclusion will take the readers beyond the scope of her essay. Who is writing an effective conclusion? A. Both
asked by Clare 
Math
I don't understand how to do this problem if someone can please help me to figure it out thank you. A survey about the student government program at a school finds that of 245 students: 218 students like the program 27 students think the program is
asked by Nikita 
basic programming principles
.Do the planning and write an algorithm to solve the following problem. Prepare test data for the example to test all possibilities and draw a trace table. Sam works at a coffee company where all the employees receive a bonus of R700, except the employees
asked by mathebula 
precalculus
Let u= and v= A. what is the angle between u and v? B. find projvU C. reoslve u into u1 parallel to v abd U2 perpendicular to v.
asked by jk 
precalculus
Let u have a length of 20 and direction of 60 degrees, and v= 5i3j what is u? what is abs(2vu)?
asked by jk 
Philosophy
Are humans "blank slates" when they enter this world or do we as humans come into the world with certain truths or idea (whether logical, mathematical, scientific, or moral)?
asked by TayB 
English
Change the passive verbs to active verbs. Can you please tell me if these are correct or not? 1. The candles were lit by Father after we were called to dinner by him. Father lit the candles after he called us to dinner. 2. A beautiful sweater was received
asked by T 
physics
A 25HP electric motor turning a 1800 RPM will produce how many foot pounds of torque?
asked by sam 
physics
. An open tank holding 400 cubic foot of air at atmospheric pressure at 70 degrees F and heated to 160 degree F. What is the volume of air that escapes from the tank?
asked by sam 
algebra
A gold ribbon is to be placed around the outside of each rectangle of the frame. Write a polynomial expression to represent the amount of ribbon needed.
asked by Samantha 
physics
A 2inch diameter pipe has been chosen to pass 65 GPM. Can this diameter be used for the suction line? If not , what line diameter should be specified?
asked by sam 
Chemistry
A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ). I know that I have to use w=p deltaV but how do i find the Final and Initial volumes?
asked by JUNDY 
English
The MACARONI AND CHEESE ____ ready to eat now. A. is****************************** B. are C. were Neither the CAR nor our COUSINS (can, could) be found. A. can B. could************************** Which of these words has the same denotative meaning as, but
asked by Cassie 
Algebra 2
Please show your work to find the mean and standard deviation of the data. Round to the nearest tenth. 20, 16, 18, 14, 9, 20, 16 I know i have to add all them and divide the answer by 7. And that's my mean , But Idk how to get the standard deviation ?
asked by Ciaria 
ss
what was the main goal of suffrage leaders such as elizabeth cady stanton, susan b. anthony, and anita pollitzer? a. create a national temperance movement b. improve the prison system c. get women the right to vote d. ensure equal pay for equal work i am
asked by basketball&batman 
Chemistry physics
3.25x103 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge
asked by Bill 
tsu
what mass of aluminum must be used to produce 42.56 g of iron? fe2o3(s) + 2al(s) → 2fe(l) + al2o3(s)
asked by pppp 
chemistry
You measure the pH of a 0.50 M unknown acid solution using a pH meter and it is found to be 1.74. What is Ka for the acid? I know ph=log{H+} Where do I go from here?
asked by anon 
reading and wrting
What type of information do you need to support your thesis statement? A. Theory B. Backup C. Reports D. Evidence my answer is
asked by Clare 
precalculus
algebraically identify the symmetries of r=2sin(2theta)
asked by jk 
precalculus help
Let z1=2(cos 2pi/3+isin 2pi/3) what are z1^(1/3)? do not even know how to apply demoivre theorem?
asked by jk 
chemistry
You find the Ka of your unknown acid is 6.3x10 5 . If you are being asked to make a buffer at pH 4.00, what is the appropriate ratio of A to HA to be combined in your flask?
asked by anon 
math
I can't figure this one. At a math contest,12 problems were given. Five points were awarded for each correct answer,and two points were deducted for each incorrect answer. Matt's score was 39.How many correct answers did he
asked by mike 
reading and writing
Terri and Jose are preparing outlines. In preparing an informal outline, Terri will use key words and phrases to list her main points. In preparing a formal outline, Jose will use capital letters and Roman numerals to list the important points. Who is
asked by Clare 
easy math
√(100  20√5 + 5 + 15  6√15 + 9) solve.
asked by jk 
Reed
Reed I posted my essay, sorry I just looked at it so I just posted it!
asked by Anonymous 
Chemistry
Chemistry  MathMate, Tuesday, March 31, 2015 at 2:56pm 1m = 1000 mm (millimeter) 1 mm = 1000 μm (micrometer) 1 μ = 1000 nm (nanometer) If the tube is 1 nm in diameter, then veryify that 5 μm = 5*1000 nm = 5000 nm = how many diameters? Chemistry 
asked by CJ 
Art help please
French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an
asked by anonymous 
basic programming principles
Do the planning and write an algorithm for the following questions. Each problem contain a do loop. When planning your algorithm, decide which type of loop will be best suited to solving the particular problem (pretest or posttest). If the problem
asked by mathebula 
Chemistry DrBob please answer
A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ). I know that I have to use w=p deltaV but how do i find the Final and Initial volumes?
asked by JUNDY 
Math
A bathroom has a length of 10 feet and a width of 9 feet.Kade wants to put down tiles on the floor that are each 1 square foot.Then he will put a baseboard along the edges where the walls meet the floor.How many tiles does Kade need?How much baseboard does
asked by Amari 
Calculus 1
How do you find the derivative of 1/3(x^2+2)^3/2 ? Please help
asked by Danny 
MATH
I'm sure what if this is the right answer that the question is looking for. since my eng. not that good i have hard time understanding. Please help me. Question: write a situation that can be modeled by the following linear system. Explain what each
asked by may 
statistics
What is the difference between alpha level and critical values?? Does the alpha level just help determine the critical value?
asked by Anonymous 
mania
Amita decides that she wants the molds to have a square base from originally having a rectangular prism with a volume of 28 cubic centimeters  how many possible molds can she use
asked by alia 
MATH
David took a survey of 12 people to find out what their favorite animal is. Of those, ⅓ of the people said they liked dogs best. How can you find out him many people liked dogs best?
asked by Bun 
Math
Sarah is lining a square tray with 1 inch square tiles. The side length of the tray is 9 inches. How many tiles does Sarah need?
asked by Bryce 
Physics
A 0.20kg ball on a string is whirled on a vertical circle at a constant speed.When the ball is at 3 o'clock position, the string tension is 20N.Find the tensions in the string when the ball is at 12 o'clock and 6 o'clock positions
asked by Refiloe 
math
Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long
asked by Olanrewaju 
reading and writing
When you write, the tone, vocabulary, and type of information you choose should vary depending on your A. audience. B. education. C. biases. D. values. my answer is a.
asked by Clare 
sonnet
i need to write a sonnet
asked by Anonymous 
Finance  Loans problem
A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At the same time the company sets up a sinking
asked by Anonymous 
reading and wrting
What is the most likely purpose of the essay from which the following passage was taken? Having been raised on a dairy farm in rural Minnesota, Lorie Ann Kline was having trouble adjusting to life in the city and to Central High School. In a conference
asked by Clare 
math
Each side of an equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long
asked by samson 
algebra
State if the inverse of y=x^24 is a function. So, I got y= squareroot of x+4 I'm don't think it's a function because of even roots, but I'm not sure
asked by ally 
floral desgin
A pick machine affixes a A. wood pick or a steel pick to a flower. B. stemmed flower to a foam base. C. wood pick to a flower stem. D. steel pick to a flower stem. i said it was b im not sure thoe
asked by Tink 
math
equilateral triangle is increasing at a rate of √3 cm/min. find the rate at which its area increasing when its edge is 12 cm long
asked by mm 
Chemistry
56mL of a stock solution of hydrobromic acid, HBr, is added to 85mL of water, yielding a solution having a pH of 1.0. What was the molarity of the stock solution? I know Molarity = moles of solute/ liters of solution
asked by Danielle 
Math
Nina wants to buy a bicycle that costs $150.00. She had saved 6% of the total cost of the bike. How much money has Nina saved? How much does Nina have left to save before she can buy her bike?
asked by Amy 
cda
Outside play may help to provide children with vitamin _______, although other sources may also be important. A. B B. D C. A D. C My answer is B
asked by Kaleisha 
Math
1. Write a rule for the sequence. 8, 1, 10, 19 A) Start with 8 and add 9 repeatedly. B) Start with 9 and add 8 repeatedly. C) Start with 8 and add 9 repeatedly. D) Start with 8 and subtract 9 repeatedly.
asked by Emo Tatto Guy 
Finance  Loans problem
Can someone please explain how this problem is laid out to solve.A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7%
asked by Anonymous 
Math
When interest is compounded once a year, the formula for compound interest is A=P(1+r)t in the formula, A represents the amount of money after t years, p represents the principal, and interest rate written as a decimal. If p=$500 r=3% and t=2 What is the
asked by Amy 
statistics
A brewery's filling machine is adjusted to fill bottles with a mean of 31.9 oz. of ale and a variance of 0.004. Periodically, a bottle is checked and the amount of ale noted. (a) Assuming the amount of fill is normally distributed, what is the probability
asked by Anonymous 
Chemistry
What would be the consequence of competing equilibria, such as from other ingredients in an aspirin tablet in a titration lab results? What if there were several pain relievers in the same tablet? How could the error from these interferences be minimized?
asked by Anonymous 
science
a racer in a kayak travels a 300meter river course at an average speed of 3 meters per second. how long does it take to complete the course?
asked by Anonymous 
CDA
Licensing requirements ensure minimum A. space. B. children. C. requirements. D. standards. My answer is C
asked by Kaleisha 
social studies
which city was divided into two zones: one communist and one noncommunist? a)Berlin b)Moscow c)Prague d)Warsaw idk can someone help me?
asked by #HOMEWORK 
maths
fruit salad recipe needs 1/5 apples and 3/5 grapes. which fruit required in grater amountand by how much
asked by dhrumi 
Chem
How many grams of ice at 0°C and 101.3 kPa (standard pressure) could be melted by the addition of 0.80 kJ of heat?
asked by Anonymous 
chemistry
How many ml of molar sulfuric acid is to be added to 50.0 ml of 0.250 molar sodium hydroxide solution to neutralize it completely . cannot post reaction sorry ..
asked by laura 
English
I am doing argument essay what does it mean evidence to support my argument?
asked by m 
science
find the velocity with which it hits the ground when a body is projected horizontally from top of a tower 100 meter high with a velocity of 9.8 meter per second.
asked by avinash 
Ethics & Social Responsibility
Which group of people might not be fully autonomous in choosing to be a research subject?
asked by Anonymous 
cda
Prop boxes, uniforms and other clothing, and a variety of dramatic sets can help children structure A. tie dying. B. hideandseek. C. sewing. D. fantasy play My answer is D
asked by Kaleisha 
Math
Given an iterated map, ie. x_n+1 = 3* x_n / (x_n +1), how do we find all of its fixed points?
asked by Cole 
ABC
a person with stone in his hand standing on a roof of a buliding how can he measure height of buliding?
asked by Mukesh 
This is nothing to do with school
A cinema sells adult tickets and child tickets. The total cost of 3 adults and 1 child is £30 The total cost of 1 adult and 3 children is £22 What is the cost of adult and child tickets
asked by jack 
english
When an adverb modifies a verb with a helping verb, the adverb should generally be placed
asked by dee 
fluids
A man unloads a truck that has 25 15 pound cinder blocks to a pallet 12 feet away. A. How much work has he done?B. How much power if he finished in 8 minutes?C. How much HP was exerted?
asked by emma 
fluids
60 cubic feet of air at 30 PSIG and 50 degrees F is compressed to 80 PSIG and 110 degrees F. What is the final volume?
asked by emma 
math
The distance to the nearest 100,000 km from the earth to the moon is given as 400,000 km. The average speed to the Nearest 500km/h is 3500km/h. Calculate the least and greatest time it takes the rocket to reach the moon I figured out the formula speed =
asked by Tay 
fluids
. A nut is frozen on a shaft and it will take a minimum 190 foot pounds to break it free. How long a cheater (extension) will a 120 pound person need to put on to an adjustable wrench with a 6inch handle?
asked by emma 
Chemistry
16. From the standard enthalpies of formation, calculate the Horxn for the reaction: (Hof = 151.9 kJ/mol for C6H12.) C6H12(l) + 9 O2(g) 6 CO2 (g) + 6 H2O(l)
asked by nona 
reading and writing
Which of the following is not a good suggestion for writing an introductory paragraph? A. Describe a hypothetical situation. B. Cite a surprising fact or statistic. C. Never asks questions. D. Use a quotation to help illustrate your thesis. my answer is c.
asked by Clare 
Math
Can mean be found from a histogram? Explain
asked by Amy 
chemistry
How many grams of CO2 are produced when 11.47 moles hexane combust? Show work please
asked by sarah 
Maths
Jenny gave 1/6 of her salary to her mother and saved 2/5 of her remaining salary. what fraction of her total salary was saved
asked by Asha 
Physics
The force acts on a 1.7kg object whose initial speed is 0.44m/s and initial position is x = 0.27. Find the speed of the object when it is a the location x = 0.99m?
asked by Anonymous 
cda
Which of the following terms correctly describes the partnership between caregivers and families? A. Contractual B. Nuclear C. Complementary learning framework D. Publicprivate I choose B
asked by Kaleisha 
geometry
An obtuse isosceles triangle has one angle with a measure of (2x) degrees and another angle (5x) degress. What is the measure of the third angle of the triangle?
asked by Jen 
chemistry
If one pound (454g) of hexane combusts how many grams of water are produced? How do u set this up? Start it?
asked by sarah 
Chemistry
Write a balanced equation for the combustion of gaseous ethylene (C2H4), an important natural plant hormone, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water
asked by Samantha 
maths
in a class 3/4 of the pupils wore spectacles 1/3 of the pupils who did not wear spectacles were boys what fraction of all the pupils were boys who did not wear spectacles
asked by Asha 
math
I need a formula. At a math contest,12 problems were given. Five points were awarded for each correct answer, and two points were deducted for each incorrect answer. Matt's score was 39. How many correct answer did he have
asked by mike 
Maths
sonia had shells of three different sizes 4/9 of the shells were big and 2/5 of the remainder were medium sized the rest of the shells were small what fraction of the shells were small
asked by Asha 
7th grade math (probability) additional questions
Here are additional problems that weren't included in original post from 3/30. 4. There are 5 different color jolly ranchers in a bag  10 cherry, 15 watermelon, 12 grape, 10 apple, and 8 raspberry. What is probability that you'll choose raspberry? Ans:
asked by Alexis 
math help
how do i solve for x and y x+y=2 and 3x^2+4xy+y^2=6
asked by refiloe 
Maths
Nitin made some origami animals 5/8 of them were cranes and 1/6 of the remainder were frogs the rest were grasshoppers what fraction of the origami animals were grasshoppers
asked by Asha 
science
How many moles of li2so4 is required to prepare 300ml of a 0.5 m solution
asked by ernstcia 
statistics
1. Suppose the estimate of a proportion of a normal population is to be within 0.05 using the 95% confidence level. How large a sample is required if: a. It is known from previous studies that p = 0.3? b. There is no prior knowledge of p? 2. Each of the
asked by Micheal 
Chemistry
A reaction at 2.43 atm produces 20.0 L of a gas and evolves 75.3 kJ of heat (exothermic). Calculate the change in internal energy of the system (in kJ).
asked by JUNDY 
Math, statistics
Problem 1: The PDF of exp(X) (6/6 points) Let X be a random variable with PDF fX. Find the PDF of the random variable Y=eX for each of the following cases: For general fX, when y>0, fY(y)= Solution: f_x(ln(y))/y When fX(x) = {1/3,0,if −2
asked by R 
Mathemtical programming
Consider the following primal LP problem. Max 𝑍=2𝑥1+5𝑥2+7𝑥3 s.t. 𝑥1+2𝑥2=6,and 𝑥1≥0, 𝑥2≥0,𝑥3≥0. (a) Graph the feasible region. [4] (b) Find the gradient of the objective function, and then find the projected gradient onto
asked by saimi 
Math
Point M(4, 3) is translated according to the rule (x, y) (x+2,y5). What are the coordinates of of M?
asked by Lost 
Social Studies
What is a likely example that India supported East Pakistan's effort to gain Independence from Pakistan?
asked by Anonymous 
algebra
I have to solve this problem do not understand Chang picked 36 Apples and kept 8 of them. He split the remaining apples among his sister and brother most write an algebraic expression on how many his sister and brother got.
asked by Emily 
Algebra
On a school field trip, the bus travels 16 miles in 30 minutes. find the speed of the bus in miles per hour. use the equation D = RT, where D is distance, R is rate and T is time. The speed of the bus is _____ miles per hour
asked by Perri 
math help
How do i solve for x (x^29)(2x+1)=0
asked by thabo 
cda
Dance, yoga, and music have been found to have three of the following positive effects. Which is not a positive effect of dance, yoga, and music? A. Increased selfesteem B. Reduction of stress C. Increased personal sense of responsibility D. Increased
asked by Kaleisha 
Math
In a recent student government election , the ratio of students who voted for the winner to all the students who voted was 0.84. The number of students who voted was 75. How many votes did the winner get ?
asked by Perri 
science help
How can you describe the location of hafnium (Hf, atomic number 72) on the periodic table? choose all that apply. Transition metals noble gases group 6, period 4 group 4, period 6 pls help me damon or ms sue pls help me pls pls pls
asked by Oscar 
Chemistry
1.578 g of an unknown hydrocarbon (110.7 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, = 5.709 kJ/ºC and ΔT =7.995 ºC. Find ΔE for this hydrocarbon in kJ/mol.
asked by JUNDY 
Chemistry
Using the technique of the previous problem ΔE was found to be 2,000.00 kJ/mol of an unknown liquid hydrocarbon at 298 K. In another experiment it was determined that for each mole of hydrocarbon, 4 moles of oxygen gas are consumed and 6 moles of CO2 gas
asked by John Handra 
Chemistry
Calculate the increase of entropy (in J/K) when 75 g of ice melts at 0 ºC and 1 atm. (The heat of fusion for ice is 6,000 J/mol.)
asked by Emily Couroso 
Algebra 2
A car’s headlight contains a parabolic reflector. A special bulb with two filaments is used to produce the high and low beams. The filament placed at the focus produces the high beam and the filament placed offfocus produces the low beam. The equation
asked by kat 
Chemistry
Calculate the change in entropy (in J/K) when 86.4 g of water is heated from 17.5 ºC to 76.5 ºC at 1 atm. (The specific heat is 4.184 J/(gK).)
asked by Emily Couroso 
health
which body system would you expect to provide the most protection from colds and the flu PLEASE HELP ME!!!!!!!!!!
asked by confused? 
Chemistry
Calculate the change in entropy (in J/K) when 61.4 g of nitrogen gas is heated at a constant pressure of 1.50 atm from 25.8 ºC to 92.8 ºC. (The molar specific heats are Cv is 20.8 J/(molK) and Cp is 29.1 J/(molK) .)
asked by June 
Physics
At an intersection a car of mass 900kg traveling east collides with a pick up truck of mass 1800kg that is traveling North. Two vehicles stick together as a result of the collision, and after collision, the wreckage is sliding at 16m/sec in the direction
asked by anne 
Math
What percentage of the total students chose skateboarding? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank you
asked by Nikita 
math
What is 5/9, 15/16, 1/4, and 9/10 put in order from smallest to largest?
asked by Dan 
Physical science
A 478.18g ice cube is taken out of the freezer at 8.5 degrees Celsius. how much heat s needed to turn it in to steam?
asked by Millie 
Physics
A costant force F is aplied to a crate of mass 25kg to move it upward along a frictionless inclined plane.when it reaches point A,its speed is 12 m.s1 and 10,8 m,s1 when it reaches point B which is 3.5m futher up the incline
asked by Hlengiwe 
pls help me dr.bob22 science
Which of the following would likely be part of an ionic bond? Choose all that apply. *K+1 *Cl2 *F1 *Ne is it a and b
asked by Oscar 
Spanish 3 Homework.
Hello. For these questions I have to specify whether these sentences are in the correct Spanish form. 1. “Tú das la tarea a tu maestro.” con pronombres es “Tú le la das.” True or false **FALSE 2. “El hombre manda un mensaje a su esposa.” con
asked by Nadia 
Math
if a recipe of 2 dozen cookies calls for 3 teaspoons of vanilla how much vanillia will i need for 50 cookies ? 7.3 1.5 teaspoon vanilla= one dozen x 4 dozens = 2.00 missing cookies. 12.5 x 4 = 50 .5x4= 2.00 divided by 1.5 = 1.3 +6 (2servings of 3
asked by Janey 
Algebra 2
Verify the identity , justify each step tanØ+cotØ = 1/ sin Ø cosØ
asked by Ciaria 
Physics
A costant force F iss applied to a crate of mass 25kg to move it upwards along a frictionless inclined plane, when it reaches point A, its speed is 12m.s and 10,8 m,s when it reaches point B which is 3,5m futher up the incline. 5,1 give a reason why the
asked by Allen C 
physical chemistry
I need to make a solution of 50% ethanol in water (by mass). The partial molar volume of water is 17.0mL/mol and the partial molar volume of ethanol is 52.0mL/mol. What is the density of this solution/
asked by chimuka