Questions Asked on
September 16, 2015

Math
Which value correctly represents the number that is 10 times as great as five hundred eight  one thousandth?
asked by AnnaChavez 
Math
Leo measured the distance each of his four car rolled across the floor. Which car measurement that has a 4 in the thousandths place represents the shortest distance rolled ?
asked by AnnaChavez 
Math
Jacks baby sister crawled three and five tenths meters today .which number represents that distance ?
asked by AnnaChavez 
Chemistry
What is the concentration (M) of K+ in a solution made by mixing 25.0 mL of 0.100 M KCl with 50.0 mL of 0.0500 M KCl? Can you please explain how to solve this problem. I thought to do 25*.1+50*.05=5 But that seems wrong. What should I try to do?
asked by URGENT 
Mathpre algebra
If you won 84 out of 162 games what is the ratio of Wins to total games
asked by Janya 
Chemistry
Which of the following shows the correct dissolution reaction for BaCl2?
asked by Morgan 
English
1. It's not actually raining now. 2. It's not raining now actually. 3. Actually it's not raining now. ================= Which one is grammatical? Where should we put 'actually' in the sentence?
asked by rfvv 
Physics  URGENT
A ball is thrown horizontally of a cliff. If the initial speed of the ball is 17 m/s and the cliff is 77 m high, how far from the base of the cliff will the ball land in the water below? Calculate the answer in meters (m) and rounded to three significant
asked by Anonymous 
Chem/bio question
HA is an acid that ionizes in 10% in solution. what is the [h+] of a 0.01 m solution of ha?
asked by Karina 
college algebra
The Johnsons plan to put down allweather carpeting on the porch. The length of the porch is 2 feet longer than twice the width, and the perimeter is 64 feet. Find the dimensions of the porch.
asked by Cornelius 
biology
a field mouse eats 10000 g of leaves each year, among other things. If each gram of leaves has absorbed 150kj of energy from the sun, about how much energy is available for the mouse ?
asked by radman 
trigonometry
find the radius of a circle in which a 59 foot chord subtends an angle of 12 degree at the center
asked by jhon 
english enn103
describe two improvements that the people of ikror have enjoyed from the state assembly and mention two aspects that still need improvement from the article of india elections:domination of nehrugandhi dynasty under threat
asked by malefu 
c++ programming
Aiden Nelinski is paid every Friday. He is scheduled to receive either a 2% or 2.5% raise next week. He wants a program that calculates and displays the amount of his new weekly paid.The current pay must not exceed RM 50.00 and if user enter larger amount,
asked by lilllly 
Life orientation
Identify four enviromental issues that cause ill health in our community
asked by Khauhelo maputle 
chemistry
science
asked by ritik 
ENN103F
What are the two main reasons for "a wave of discontent directed at those who have represented [the people] over the decades"as discussed in the article?
asked by mokolotedi 
enn103
the writer comments,"this rural scenewith its fishermen,glossy black oxen and schoolchildren on bicyclesappears both unchanging and bucolic.in fact,it is neither".explain exactly what he means and discuss two of his reasons for saying the scene is
asked by malefu 
muziwesizwe
L.O identity four environmental issues that cause illhealth to your community
asked by pearl 
ENN103
ASSIGNMENT 3 QUESTION 2
asked by akhona 
uA
How much heat is needed to produce 10.5 moles of methane gas
asked by Lan 
Math Check Pleas Thank You
1. Which of the following numbers is an example of an integer? 15 * 0.252525 . . . 3/5 (fraction) Square root of 7 2. Which statement is false? Every integer is a real number. The number zero is a rational number. Every irrational number is a real
asked by YOLO 
Science
How many grams should be to taken to make 0.5 molar sodium bicarbonate in 100ml soiution.
asked by Manjunath s 
Computer
whats the best topic for a slide show presentation that could capture so much attention of the teens ?? i just cant think of any topic ... thanks for your help in advance :)
asked by terry 
MATH
Simplify: 3xy + 6x^2 4xy  2y^2 ___________ ____________ * then 2y 9x^2 y^2 / (divide by) 4x^2  y^2 Thank you so much!! :)))
asked by Camz 
MATH
The area of a rectangle is expressed as x^2  3x + 2 ______________ 2x^2  7x + 3 Determine its length if its width is: x^2  x  2 ______________ 2x^2  3x  2 Thank you so much!! :))
asked by Camz 
MATH
if x = 4 and y = 3 then find the value of x^2 + 2xy __________ x^2 + 4y^2 Thank you so much!! :))
asked by Camz 
Business statistics
The lifetimes of Triple X TV Tubes are approximately normally distributed with mean 13.2 years and standard deviation 3.5 years. Consider the distribution of sample means for all samples of 100 Triple X TV tubes. Part A What is the standard error, to two
asked by Portia 
Chemistry college
You are given a recipe for a buffer that contains 5% (w/v) MgSO4.7H2O. However, you only have MgSO4 anhydrous available to you. How much MgSO4 anhydrous do you need to make 0.5L of the buffer with the same molar concentration as in the recipe? Show your
asked by Anna 
maths
The cost of 100 fruits is rupees 500. Cost of 1 watermelon ,1 guava,1 banana respectively rupees 50,10 and 1 find the no.of fruit of each type
asked by sanjay 
maths
Arrange 10 people in 5 rows in such a manner that there are 4 people in each row
asked by sanjay 
math
can someone check my work please? 1. Seven times a number, added to the sum of the number and eight. 7*x+8 2. A number multiplied by 7 less 11 X*(7)11 3. A number multiplied by 9, added to 8 X*9+(8) 4. 8.7 less than a number 8.7x 5. The sum of a
asked by Abby 
Math
I can't figure out my last 3 problems please someone help me... I would really appreciate it if you could explain how to do it Questions In each of the following situations, write the phrase as a mathematical expression. Combine like terms, if possible.
asked by Abby 
American History
A (n) confederation is a government in which a single person holds unlimited political power?
asked by Anonymous 
History
The first Englishman who wanted to build a “future Eden” where luxurious items, such as coffee, tea, figs currants, olives, rice and silk, would be produced. This paradise was to be called
asked by brooke 
ISIZULU
CLAN NAMES FOR GAMEDE
asked by BONGIWE GAMEDE 
ENGLISH HOME LANGUAGE
WHAT HAPPENS IN SCENE1 ACT1 IN THE NOVEL THE MERCHANT OF VENICE
asked by BONGIWE GAMEDE 
writeacher
sorry i forgot to turn it off ,please accept my apologies.
asked by BONGIWE GAMEDE 
math
Ernest want to buy a car costing R120,000.He want to pay cash for this model of car can only do this in one and a half years time. If the inflation rate is running at 7% per annum,calculate the cost of this car in one and a half years time.
asked by portia 
Science
How do I write the correct dissolution reaction for BaCl2
asked by Morgan 
English
For questions 710, identify the type of noun underlined in each sentence. 7. The AZTECS made sacrifices to their gods. (2 points) Select all that apply. Common. Proper. Compound. Collective. 8. A SWARM of insects surround the raft as we drifted down the
asked by April 
science
How many grams of sodium hydroxide will be produced when 23 gram of sodium reacts with wates at ordinary temperature ?
asked by krishna gupta 
Algebra
Twice a number increased by 28
asked by Trisha 
chemistry
When chemicals pour on the skin, the laboratory first aid is to . Apply 1% sodium carbonate Apply 1% boric acid solution Flush the eye with a copious amount of clean lukewarm running water Wash with soap and warm water 2 For cut sustained in
asked by onyi 
chemistry
1 In the reaction of potassium permanganate and iron salt in acidic medium, how many moles of manganese reacted with iron? 2 moles of Mn with 1 mole of Fe 1 mole of Mn with 5 moles of Fe 1 mole of Mn reacts with 1 mole of Fe 5 moles of Mn reacts with 1
asked by onyi 
physics
Bob heads out into a lake at an angle of 27◦ with respect to the shore. If his boat is capable of a speed of 1.3 m/s, how far from land will he be in 2 min and 28 s ? Answer in units of m.
asked by james 
physics
A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 34.1 m/s. At the same time, it has a horizontal velocity of 53.5 m/s. At what speed does the vehicle move along its descent path? Answer in units of m/s.
asked by james 
chemistry
Oganic solvents are not suited to be heated with one of the followings: Oil Bath Electric hot plate Water bath Bunsen burner flame 2 Which of the following is not an inflammable liquid ? Water Ethanol Kerosine Benzene 3 These are some safety precausions
asked by onyi 
Math
0.1/0.6 = 2/x =x/24
asked by Noor 
Math
0.1/0.6 = 2/? = ?/24
asked by Noor 
Physics
A metallic wire of density d floats horizontally in water . The maximum radius of wire so that it may not sink in water will be ??
asked by Anonymous 
Java Programming cpt167
SPECIFIC DIRECTIONS The cabin specifics: it’s still a simple rectangular structure, but now you’re only concerned with the walls—we’ll just forget about the ceiling for the rest of our planning exercises. You’ll still need to request the users
asked by Traci 
Physics
the weight of the body on the surface of earth is 392N what will be the weight of this body in another body whose mass is double of earth mass and radius is fourth multiple of earth radius?
asked by Priyank 
Math
A number between 1 and 10 that when divided by 3 and multiplied by 8 gives 16
asked by Fiona G 
language arts
ms. sue please help the characterization of the children is an important part of "The StoryTeller". which of the following quotes from the story offers the best evidence for the character of Cyril being mischievous? A. the children moved reluctantly to
asked by julia 
Geometry
S is in the interior of ∠PQR, m∠PQS = 87°, and m∠SQR = 33°. Find m∠PQR.
asked by Mo 
Career
If dog breeds that require grooming become more popular, then jobs in pet grooming will: be created. be eliminated. be moved to somewhere else.**** be done differently.
asked by Anonymous 
maths
Please help me.. andrea's savings is 20% more than priscilla's savings. priscilla's savings is 10% more than celest's savings.if they have a total of $1710 of savings, how much more does andrea saves have than celest?
asked by a.sarah 
Chemistry
a 250.0g mass of metal at 112.4 degrees celcius is dropped in a calorimeter (c=1.40j/g degrees celsius, m = 5.0g) containing 150.0g of water. The water and calorimeter are initially at 25.0 degrees celsius. At the end of the experiment, the temperature of
asked by Renae 
Chemistry
A 50g vhuck of metal (c=0.506 j/g degrees celsius) is heated to 60 degrees celsius. It is then dropped into a calorimeter (c=1.40 j/g derees celsius, m  5.0g) that contains 100g of liquid. The temperature of the liquid raises from 15 degrees celsius to 20
asked by Renae 
Chemistry
A 50g chuck of metal (c=0.506 j/g degrees celsius) is heated to 60 degrees celsius. It is then dropped into a calorimeter (c=1.40 j/g derees celsius, m  5.0g) that contains 100g of liquid. The temperature of the liquid raises from 15 degrees celsius to 20
asked by Renae 
maths
simplify:2(x+2)squared(2x1)(x+2)
asked by maso 
maths
simplify:15xsquared y cubed+9xsquared y cubed ÷8xsquared y cubed
asked by maso 
maths
simplify xsquared4x÷xsquared2x8
asked by maso 
maths
xsquared÷2+2xsquared÷37xsquared÷6
asked by maso 
maths
factorise fully:3xsquared y9xysquared+12xcubed y cubed
asked by lebogang 
maths
factorise fully 2(x+y)t(x+y)
asked by lebogang 
maths
factorise fully:xsquared11x+18
asked by lebogang 
science
a tennis ball of mass m strikes the massive wall with velocity v and traces the same path.calculate the change in momentum
asked by ayesha khan 
Physics
The magnitudes of the four displacement vectors shown in the drawing are A = 14.0 m, B = 11.0 m, C = 12.0 m, and D = 25.0 m. Determine the (a) magnitude and (b) direction for the resultant that occurs when these vectors are added together. Specify the
asked by Rachel 
college algebra
According to the CDC there were 597,689 deaths in the US in 2010 attributed to heart disease. Given that the US population in 2010 was close to 308 million, what was the death rate per capita for heart disease in the US for 2010? (round to five decimal
asked by tim 
Life Orientation
Four environmental issues that cause ill health
asked by Tshepiso 
math
SAVE R2000 CASH R9999 DEPOSIT R1000 TERM 24MONTHS MONTHLY INSTALMENT R484,96 ANNUAL INTEREST RATE 26% TOTAL REPAYABLE R13817,66 WHAT IS THE DEPOSIT IF YOU WISH TO TAKE OUT THE HIRE PURCHASE LOAN? I GOT 6.90883 IT IS CORRECT? PLS HELP THANKS U
asked by portia 
Physics
A storage battery has an emf of 6.3 volts and an internal resistance of 0.01 ohm. it is to be charged for 120 amperes.hours from a 30 volt emf source having a resistance of 0.08 ohm at the rate of 20 amperes. a. compute for the resistance needed b. what is
asked by Frank 
Math
If I cut 2 metres of ribbon into 10 equal pieces,how long will each pieces be ?
asked by Molly underwood 
Statistics
. Wildlife biologists inspect 153 deer taken by hunters and find 32 of them carrying ticks that test positive for Lyme disease. a) Construct and interpret a 90% confidence interval for the percentage of deer that may carry such ticks. Show all work and
asked by Cutie patootie 
Geometry
Determine whether the conjencture is true or false. Give counter example is false. Given: two angles are supplementary. Conjecture: the angles form a linear pair.
asked by Britney 
college algebra
In Japan, there were 94,848 deaths attributed to heart disease and the population of Japan is about 128 million. If the United States were able to reduce its number of deaths to be proportional to that of Japan, about how many deaths due to heart disease
asked by tim 
college algebra
Are total emissions or percapita emissions a better gauge when comparing the CO2 emissions of various countries? Why?
asked by tim 
U.S. History (Help!)
Name at least three key moments in the early 1800s when federal authority clashed with state authority. What trend developed in the resolution of these disputes?
asked by Victoria 
english
In "The Maori: Genealogies and Origins in New Zealand,” which evidence best helps the reader infer that the Maori people live in a difficult climate?
asked by ana 
math
a rectangular quilt is made from 180 blocks ,what 3 dimensions will the quilt have?
asked by angel dlamini 
Tourism,business studies,maths literacy
What kind of job can i get for choosing maths literacy tourism,cat,business studies
asked by ntokoto 
English
What are the two main reasons for “a wave of discontent directed at those who have represented [the people] over the decades” as discussed in the article?
asked by sfiso 
English
Describe two improvements that the people of Ikror have enjoyed from the state assembly and mention two aspects that still need improvement. (10 marks)
asked by sfiso 
english
In less than 50 words, write a summary in which you describe the caste system of India. Base your summary on what you read about life in the district where the Dalit caste lives. (Use your own words and do not copy sentences from the article). (10 marks)
asked by sfiso 
Writing
Please check my rewrites (the ones with a black dot/bullet). Thank you! a. The importance of your family. Thesis: The success of a child depends on the support of his or her family. * I think this is debatable because the other side could argue that the
asked by Anonymous 
physical science(elecrostatics)
A(9x10^9 C) 20mm B(5x10^9 C) (a)calculate the force between the charges (b)if A comes in contact with B Calculate the new charge on A and B
asked by jonathan 
maths
solve forx:(x2)^2+3x2=(x+3)^2
asked by lebogang 
maths
solve forx: x^25x6=0
asked by lebogang 
maths
solve forx :(x2)^2+3x2=(x+3)^2
asked by lebogang 
maths
solve for x: x^25x6=0
asked by lebogang 
Biology
Substance X is converted to substance Y in a chemical reaction. What role would a catalyst play in this scenario? A. It would increase the solubility of substance X into the solvent needed to speed up the reaction. B. It would speed up the reaction by
asked by Jello 
Writing
This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Rewrite: Through their difficult times in college, students will be armed with perseverance and determination
asked by Anonymous 
mareseleng
compile your bibliography? 6, research about protest,permit to hold a protest,activities during a protest. draw up any five interview questions you will use to evaluate the understanding of service delivery by the learner in your school 7. write your
asked by calvin 
Math
Which number is greater then 5.5*10^7 and less than 5.5*10^7.. Choices 1.8*10^12 6.7*10^8 5.2*10^3 3.9*10^8 I chose D i don't know if it is correct can someone tell me plese?
asked by Anonomous 
Math
There are 36 students in Mrs. Keaton's sixth grade class. If 5/12 of her students are girls, how many girls are in the class?
asked by Anonymous 
algebra
linearfunction that represents total week pay ears $200 plus 5% commission on sales what will need to wake to equal 475 dollar a week
asked by mary 
Reading and writing skills
A sentence is a group of words expressing a complete thought and each will begin with a capital letter?trueor false?
asked by Ann 
WritingWriteacher
This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Rewrite: Through their difficult times in college, students will be armed with perseverance and determination
asked by Anonymous 
English
Hello. I will be very grateful for your help. 1)Does the following sentence sound natural English: "someone fired a mortar at a building just 100 meters away from my house"? 2)Which preposition is correct in the phrase: "the bank account is opened at/ with
asked by Nalmi 
physics
Vector B~ has x, y, and z components of 9.6, 6, and 8.5 units, respectively. Calculate the magnitude of B~ .
asked by james 
physics
A quarterback takes the ball from the line of scrimmage, runs backward for 18.0 yards, then runs sideways parallel to the line of scrimmage for 16.0 yards. At this point, he throws a 49.0yard forward pass straight down the field. What is the magnitude of
asked by james 
college algebra
In Japan, there were 94,848 deaths attributed to heart disease and the population of Japan is about 128 million. If the United States were able to reduce its number of deaths to be proportional to that of Japan, about how many deaths due to heart disease
asked by tim 
college algebra
Country CO2 Emissions (tons of carbon dioxide) 2012 population ￼ Emissions per Capita ￼ China 8,782,000,000 1,359,750,000 ￼ ￼ ￼ United States 5,144,000,000 316,597,000 ￼ ￼ India 2,185,000,000 1,233,460,000 ￼ Russia ￼ 1,646,000,000
asked by tim 
public speaking
when deciding on the topic, it is important to consider
asked by liz 
Writing
I concede that my thesis is vague. This is still vague to me. What are these "essential life skills"? If you list some (and make them specific), I'll help you work them in. • Rewrite: Through their difficult times in college, students will be armed with
asked by Anonymous 
life orientation
What are the 4 environmental issues that cause illness in community
asked by Noxolo Nxumalo 
physics
One simple model for a person running the 100m dash is to assume the sprinter runs with constant acceleration until reaching top speed,then maintains that seed through the finish line.if sprinter reaches his top speed of 11.1m/s in 2.54s. What will be his
asked by Lucas 
ml 42 , lo 52, geography 33, sepedi 52,english 42,tourism 37.
what careere i can do acoding tn my percentages
asked by minah 
curriculum
discuss the view that curriculum is all the leaning which plan and guided by the school whether it carries on in the group or individual inside or outside the school.
asked by Ebenezer 
college algebra
195, 176, 215, 200, 189, 232, 201 mean= median= mode= 25% percentile= 75% percentile= maximum= minimum= range=
asked by tim 
Math
During the summer you now lawn's for extra money. One customer pays you to mow every 6 days and the other customer every 9 day's. If you mow both lawn's today,in how many days will you mow both lawn's again on the same day?
asked by Amy 
algebra
A triangle is such that the largest angle is 12 times the smallest angle. The third angle is 20 less than the largest angle. Find the measure of each angle. (12x)+ x+20(12x)=180. im having a difficult time setting up the equation
asked by jay 
geography tourism maths lit
wha careere i can do
asked by minah 
algebra
201.1428571 round two decimal places
asked by tim 
Geometry
the endpoints of the diameter of a circle are at (1,2) and (7, 6). what is the circumference of the circle, no the nearest tenth of a unit? 15.7 31.4 62.8 78.5 I was thinking B? i want to check.
asked by Roi 
Geometry
Find the measure of an angle if its measure is 26 degrees more than 3 times its complement. 16 141 74 42 Trying to figure it out but can't. Please help?
asked by SkatingDJ 
Math
Carol can run 4.2 Miles's in 14 minutes, what is her speed per minute.
asked by Ron 
Math
Simplify 7+10^2*354
asked by Amy 
chemistry
A sample of a copper chloride of mass 1.425g is treated with a water solution of silver nitrate, and the AgCl formed had a mass of 3.038g. What is the correct empirical formula of the copper chloride?
asked by melissa 
Sexton High school
At its widest point how wide is west Podiatry from east to west
asked by Jay'da 
Algebra 2
Can someone help me simplify this exponential expression? (a4)/(a^6) The answer I got was (a^5) 4/a^6. Is this correct and if not where did I go wrong?
asked by John 
Career
If dog breeds that require grooming become more popular, then jobs in pet grooming will: be created**** be eliminated. be moved to somewhere else. be done differently.
asked by Anonymous 
Mathematics
A cowtrough has a triangular crosssection of height 25cm and base 30cm and is 2m long. A cow is drinking steadily, and when the water level is 5cm below the top it is being loward at the rate of 1cm/min. Find the rate if consumption in litres per minute.
asked by Amos 
Math
what is greater 0.84 or 0.886
asked by Kate 
Math  Algebra
Evaluate t  u/v when t = 1, u = 3, and v = 1/2 I am VERY VERY unsure what the answer is. PLEASE HELP!!! I am stuck on this!!!
asked by Logan 
math
0.957, 0.912, 0.925, 0.886, 0.920, 0.958, 0.915, 0.914, 0.947, 0.939, 0.84 how do i put these in order
asked by Kate 
math
How to some for y 2x+y equals 9
asked by tomeisha 
math
Solve to solve for y 4x+10y equals 12
asked by tomeisha 
math
How to solve for y 13 equals 1/2y+2x
asked by tomeisha 
Math
Naomi has 50 red beads and white beads. The number of red beads is 1 more than 6 times the number of white beads. How many red beads does Naomi have?
asked by Anonymous 
Help?
Which units measure the amplitude of sound waves? seconds decibels watts hertz I think its Watts
asked by Sara 
Math
What is the best estimate for the prouduct of 289 and 7
asked by Ariana 
math
How to solve v equals lwh
asked by tomeisha 
Physics
You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 7.8 m/s. (a) How much time does it take for the tennis ball to reach its maximum height? (b) What is the
asked by James 
Algebra
A cash drawer has $267.00 total. There are no bills larger than a 10. There are 11 tens and 7 more 1s than 5s. How many of each bill is there?
asked by Chloe 
PreCalculus
Parabolas; find Vertex, focus, directrix? 1) (y+1)^2 = 4(x2)
asked by anonymous 
algebra
A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of heat would be required to
asked by sarah 
Algebra
Write a polynomial of least degree with real coefficients and with the root 68i. Write your answer using the variable x and in standard form with a leading coefficient of 1. Thanks, I have no idea!
asked by Mom 
AP Literature & Composition
in the story marigolds how do these literacy devices show mood and tone
asked by swazit 
Writing
Please check this thesis statement. Thesis: While some college students want to be completely independent by leaving home, it is worthy to note that dependence is necessary at times.
asked by Anonymous 
English
1. I woke very early this morning and now I'm rather tired. 2. Jacob stood there patiently for about ten minutes. 3. Sometimes a flock of wild geese fly noisly overhead. List the adverbs in the sentences. 1. very, rather 2. patiently 3. sometimes, noisly
asked by Hayden 
Science
A car travels at a constant speed of 30.0 m/s for 0.80h. Find te total distance traveled in km.
asked by Swag 
algebra
0.957 0.912 0.925 0.886 0.920 0.958 0.915 0.914 0.947 0.939 0.84 mean=
asked by Kate 
Science
John took 45 minutes to bicycle to his grandmother's house, a total of four kilometers. What was his velocity in km/hr?
asked by liyah 
Math
Ja son éranse $20 per game. Erige expresión to find how much money ja son will earn for refereeing any Number of games. Let n representa the Number of games jason has referendo. How much will he earn for refereeing 6 games
asked by Anonymous 
8th grade algebra
We did graphing reflections of images homework from the book with problems that gave the vertices for each figure and said either reflect over x or y. This time, the homework is a worksheet and directions are to graph the reflection across either x or y
asked by Alexis 
math
123b
asked by Omar 
Science
In general, what would a scientist do after forming a testable question? Design an experiment. Develop a hypothesis**. Draw a conclusion. Analyze data.
asked by Anonymous 
Science
If an experiment disproves a scientist’s hypothesis, what should the scientist do next? Develop a testable question. Revise the hypothesis and try the experiment again.*** Develop a theory based on the data gathered in the experiment. Change the
asked by Anonymous 
Science
A student mistakenly used an ethanol solution containing an unknown ionic compound in part C of the experiment. How would this affect the Van't Hoff factor determined experimentally? Justify your answer with an explanation.
asked by Lisa 
Science
A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not
asked by Anonymous 
PHYSICS
An aerialist on a high platform holds onto a trapeze attached to a support by an 7.9m cord. (See the drawing.) Just before he jumps off the platform, the cord makes an angle of 37° with the vertical. He jumps, swings down, then back up, releasing the
asked by Anonymous 
PHYSICS
The figure shows two displacement vectors and . Vector points at an angle of 20.0° above the x axis and has an unknown magnitude. Vector has an x component Bx = 31.0 m and has an unknown y component By. These two vectors are equal. Find (a) the magnitude
asked by Anonymous 
precalc
Given that sin 64° = 9/10 and cos 64° = (√19)/10 find the following: 1. cot 64° = 2. cos 64° = 3. csc 64° = 4. csc 26° = 5. sec 244° =
asked by a 
math
A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of heat would be required to
asked by sarah 
Math
Mrs. Cress's table measures 5 ft wide and 8 ft long. She wants to cover the table with 3 in square tiles. How many tiles will she need? Help Thank you!
asked by Maddie 
Math Grade 5
The Eatery Restaurant has 200 tables. On a recent evening, there were reservations for 1/10 of the tables. How many tables were reserved?
asked by Lina 
math
Create a piecewise function of the following scenario where D(t) is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 6 miles per hour for 25 minutes. You rest for 15 minutes,
asked by briana 
Math
If I work 5 days a week making $8.38 an hour, how would I figure out how much I make a month, getting paid bi weekly?
asked by Robert 
Math
The Eatery Restaurant has 200 tables. On a recent evening, there were reservations for fraction 1/10 of the tables. How many tables were reserved?
asked by Student 
Math teacher
Joanie wants to mail a package that requires $1.61 in postage. If she has only 5 cent and 8 cent stamps. what is the smallest number of stamps she could use that would total exactly $1.61?
asked by Earleen Shope 
physics
A sports car, traveling 30 m/s, is 220 meters behind a truck. If the truck is traveling 22 m/s, how much time until the sports car passes the truck.
asked by Emma 
Math
A quadrilateral has a angle that measures 63°, 89° and 121° What is the measure of the fourth angle?
asked by Lynne 
Fraction
4friemds ate 3 large pizzas. Shawn ate 3/4, will ate 1/4 and Mattate 3/4. How much pizza is left
asked by Kyle 
pre algebra
it took us 3 hour to drive to a concert.on his way home he increased his speed by 19 miles got home in 2 hours . what was the speed
asked by william 
Ap world history
I population increase and East Asia and South East Asia during this timeframe was due in large part to.. A) The lack of wars B)The growing respect for a woman C) The spread of Buddhism,hey religions that encourages procreation D) The development of a
asked by Brenda 
Grammar
Is this correct grammar? Sarah has 6 oranges. Ted has 7 oranges. How many oranges do they have altogether?
asked by Sarah 
Ap world history
Which of the following would least be a characteristic of the Tang Dynasty in China A)territorial expansion B)isolation from the rest of the world C) reinstitution of civil service exams D)A golden age for the silk Road
asked by Brenda 
economics
Assume that average product for six workers is fifteen. If the marginal product of the seventh worker is eighteen, what is the average product of the seventh worker?
asked by jerome 
English
Which of the following sentences contains an infinitive phrase? A. Racing through the park, she paused only to drink. B. Reading by flashlight does not cause bad vision. C. Mom’s idea was to pack the night before our early flight. D. Remembering every
asked by Alexa 
Medical Term
I need some help with medical terms. I need to determine the word parts and the definition and I'm having a hard time with these 2. stomatoesophagogastroenterocolitis cardiosphygmopneumographologist
asked by Kristen 
Medical Term
I have to define the word parts for example like the suffix, prefix, combining forms and also define these terms. I was able to do the majority however having a hard time with the last handful! panenteroduodenocholecystolaparoscopy
asked by Kristen E 
Social Studies
The first Englishman who wanted to build a “future Eden” where luxurious items, such as coffee, tea, figs currants, olives, rice and silk, would be produced. This paradise was to be called is it the margravate of azilia?
asked by brooke 
Mechanics NYA
Assume you are driving a car at a constant speed of 75.0 km/h. Suddenly you see a deer standing on the highway and you must put on the brakes. Your reaction time (time elapsed between the moment you see the deer and your foot hitting the brakes) is 0.116
asked by stacey 
English
What is the most likely reason that Shakespeare would include a scene in a tragedy that focuses on a minor character who uses a commoner’s dialect and falls over everything? A. to show that he is democratic B. to promote a social cause C. to poke fun at
asked by Alexa 
English
"Tolerance is the word used most often when this kind of coexistence succeeds, but tolerance is a vanillapudding word, standing for little more than the allowance of letting others live unremarked and unmolested. Pride seems excessive, given the American
asked by Elizabeth 
English
What is the infinitive phrase in this sentence? In August, we went to Ontario and to upstate New York to see Niagara Falls. A. to Ontario B. to upstate New York C. to see D. to see Niagara Falls I think its C
asked by Alexa 
English
Coyote hid himself and watched the Beings from a distance. He noticed that for a short time when they changed guardians of the fire, it remained unguarded. When the moment was right, Coyote snatched up a flaming piece of fire and raced away, the furious
asked by Alexa 
Physics
Determine the direction of frictional forces (left, right, up down) for the objects: 1) A cup resting on top of a car. The car is moving and accelerating to the right. Up  This one I'm not sure but I think up because the frictional force would have to go
asked by Rebecca 
English
What is the prepositional phrase in this sentence, and what does it modify? The purpose of the last song was to show off all the musicians’ talents. A. of the last song; an adjective phrase that modifies the noun purpose B. to show off all the
asked by Alexa 
math
Please I need help with this problem. it took us 3 hour to drive to a concert.on his way home he increased his speed by 19 miles got home in 2 hours . what was the speed? thank you
asked by william 
English
Which sentence has no direct object? A. Read me those directions again, please. B. Can you return this book by tomorrow? C. I just told Janice to call me tonight. D. Hank spoke to the audience for an hour. I think D..
asked by Alexa 
physics
A high fountain of water is located at the center of a circular pool as shown in the figure below. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 29.0 m. Next, the student stands at the edge of the
asked by lily 
history
what was the economy like in china between 10001500 AD? thank you!
asked by leigha 
math please help me!
Estimate the instantaneous rate of change of the function f(x) = x ln x at x = 1 and at x = 3. (Use h = 0.1, 0.01, 0.001, 0.0001, and so on. Round your answers to four decimal places.) f '(1) = f '(3) = What do these values suggest about the concavity
asked by Natalie 
english
in line 16of "The Nymph's reply to the shepherd" in what ways does the speaker's word choice reveal a striking balance of opposite to illustrate the theme of the harmful effects of time?
asked by sierra 
simple interest
a student borrow $12000 at a simple interest rate 4.5% how much interest is owed at the end of 5 years what amount of money must be repaid
asked by Anonymous 
math
Find the derivative algebraically. g(t) = t^2 + t at t = −1 I can't seem to start this problem correctly. What is the process required for this question?
asked by Natalie 
math,
A jeweler is heating a gold bar. It takes 7 joules of heat to raise the temperature of the bar 1°C. The initial temperature of the bar is 25°C. Use this information for Items 4–11. 4. Make a table that shows how many joules of heat would be required to
asked by sarah 
English
1. I screamed so loudly that the mouse scurried away quickly. 2. My kite blew away and launched upside down in those trees. List the adverbs in each sentence 1. loudly, away, quickly 2. away, upside down, those
asked by Hayden 
Chemistry
An analysis of nicotine (MW = 162 g/mol) gives 74.0% carbon, 8.65% hydrogen, and 17.3% nitrogen. What is the TRUE (MOLECULAR) formula for nicotine? All I need are the formulas!!
asked by Nicole 
Physics
A military jet fighter plane flying at 180m/s pulls out of a vertical dive by turning upward along a circular path of radius 860m. What is the acceleration of the plane? Express the acceleration as a multiple ofg.
asked by Anonymous 
Chemistry
How many atoms of mercury are present in 3.2 cubic centimeters of liquid mercury? The density of mercury is 13.55 g/cc. Answer in units of atoms.
asked by Nicole 
precalc
Given that sec 3π/10 ≈ 17/10 and csc 3π/10 ≈ 17/14, find the following: 1. sin 3π/10 ≈ 14/17 (is this one correct) 2. csc 43π/10 ≈ 3. sec 2π/10 ≈ 4. cot 12π/10 ≈ 5. tan π/5 ≈ 6. sin 7π/10 ≈ 7. cos 13π/10 ≈ 8. tan 33π/10 ≈ i
asked by a 
information technology
write a pascal program which reads price of an item. the program should compute 25% discount on the original price, it should display the discounted amount and the discounted price of an item.
asked by james 
Chemisrty
What is the weight of 6.14×10^21atoms of phosphorus?Answer in units of g.
asked by Nicole 
math
Four students spent 12$on school lunch at thus rate what is the amount 10,students would spent on the same school lunch
asked by lesly 
math
Translate the following into an algebraic espression and set up the related equation. Let y be the unknown number. Some number minus 6 is equal to the number times 17 Translate "the number times 17"
asked by Anonymous 
math
Explain and help solve f equals 1/2(r+6.5)
asked by tomeisha 
Math
The ratio of milk to water in a container is 5:1 by volume. If the total volume of the mixture is 9 liters, find the volume of water in it.
asked by Noor 
Need help
Use compatible number to find two estimate that the quotient is between 2593/6
asked by Anonymous 
Chemistry
Calculate the number of moles of carbon atoms present in 1.1 g of ethanol (C2H6O). Answer in units of mol.
asked by Nicole 
chemistry
Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 29.1 g of butane is mixed with 64. g of oxygen. Calculate the minimum mass of butane that could be left over by the chemical reaction. Be sure your
asked by lauren 
Physics
vector r and s lie on an xy plane. magnitudes of 4.5 and 7.25, respecectively directions are 320 degrees and 685 degrees. What is vector r cross product of vector s?
asked by Kyle 
Chemistry
Calculate the percentage by mass of the active ingredient in an antacid tablet that weighs 1.36 g if it contains 520 mg of calcium carbonate
asked by Anonymous 
Physics
suppose you want to design a capacitor that uses mica as the dielectric material which has K = 7 and a dielectric strength of 150 MV/m. It is intended to store at least 1. J of energy and be able to withstand a voltage up to 250 volts without electric
asked by Heidi 
poli
When your communication reflects both a sincere interest in the customer's welfare and a willingness to do some extra, you are reflecting
asked by Anonymous 
Physics
A train is traveling south at 23.5 m/s when the brakes are applied. It slows down with a constant rate to a speed of 5.01 m/s in a time of 8.73 s. How far does the train travel during the 8.73 s? I have already found Acceleration during braking: 2.12m/s
asked by Ethan 
algebra
luncheon special at little jimmy's cost $4.89. the math club has $23.50 in the account. what is the greatest number of luncheon specials they can buy wit the money in their luncheon account? $23.50/$4.89 = 4
asked by chiquita 
Physics
A projectile of mass 0.413 kg is shot from a cannon, at height 6.8 m, with an initial velocity vi having a horizontal component of 7.5m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and strikes the ground a
asked by Joseph 
Chemistry
I keep getting the wrong answer? I know there is one similar to this on here but I keep getting the wrong answer. The gold foil Rutherford used in his scattering experiment had a thickness of approximately 6×10^−3mm. If a single gold atom has a diameter
asked by Rach 
Math
Luis has $10.25 in change in his piggy bank. The number of nickles is three times the number of dimes. The number of quaters is 1 more than four times the number of dimes. How many of each kind of coin does he have.
asked by Brady 
U.S history
Was Slavery the basis of freedom in colonial America? This what I hvae written I feel like its to much and would like to shorten it and make it sound more college level plz help. In colonial America slavery was the basis of freedom. In areas such as Europe
asked by rachel 
algebra
The wheels of a moving bicycle have 27inch diameters, and they are spinning at 200 revolutions per minute. How fast is the bike traveling in miles per hour? 27*π*200=16964.6 1mi=63360in 63360/16964.6=3.73 I am not sure if i did it right
asked by Bob 
Maths
I = Alog10(t) + B I equals 8 when t is 3 I equals 50 when t is 8 t can't go past 200 A and B are constants Find A and B when I reaches 100
asked by Daisy 
Physics
suppose you want to design a capacitor that uses mica as the dielectric material which has K = 7 and a dielectric strength of 150 MV/m. It is intended to store at least 1. J of energy and be able to withstand a voltage up to 250 volts without electric
asked by Heidi 
Math
From an urn containing 7 white and 3 green balls, 3 balls are drawn in succession, without replacing them. Construct the probability distribution of W, the number of white balls in the sample, then compute the mean and standard deviation of W. I've created
asked by Andrew Burns 
Math
Reasoning given that 9,554/562=17, how can you find the quotient 95,540/562? Not sure how to word this explanation. 95540/562=170. Adding a zero to the 17
asked by Mallory 
Math
Luis h!@#$%^& 10.25 in change in his piggy bank.the number of nickles is three times the number of dimes the number of quaters is one how many coins does he have.
asked by Anonymous