Questions Asked on
November 14, 2016

math
the angle of elevation and angle of depression of the top and base of a mobile tower from a mobile handset are 60degree and 30degree respectively. if the distances of the top and the bass of the tower from the mobile handset are 15metre and 8metre
asked by prandeep goswami 
math
The difference between compound interest and simple interest on a certain amount for1.5 yes at 12% per annum is ₹ 150.calculate the amount.
asked by sahil 
Chemistry
Use two concentration tables to calculate the concentrations of the species present in a 0.0400 M solution of CsBrO. a.[HBrO] b.[BrO] = 0.0400M c. [H3O+] d.[OH] hi. how would I attempt this problem. can you walk me through it or give me a hint.
asked by J 
math
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 8% margin of error at a 95% confidence level, what size of sample is needed?
asked by zzz 
PreCalculus
The amount of force required to compress a spring is inversely proportional to the distance that it has been compressed. For one certain spring, it takes 5 pounds of force to compress it from its natural length of 18 inches down to 12 inches. How much
asked by Karen 
math115
The management of a company is negotiating with a union over salary increases for the company's employees for the next 5 years. One plan under consideration gives each worker a bonus of 1200 dollars per year. The company currently employs 1055 workers and
asked by Brita 
chemistry
Calculate the final temperature that results from mixing 245 grams of cobalt, specific heat 0.446 J/g0C, at 1420C with 106 grams of water at 24.80C.
asked by cao 
Math
A landlady currently rents each of her 50 apartments for $1300 per month. She estimates that for each $100 increase in rent, two additional apartments will remain vacant. a. Construct a function that represents the revenue R(n) as a function of the number
asked by Anne 
math
In economics, revenue Upper R is defined as the amount of money derived from the sale of a product and is equal to the number x of units sold times the selling price p of each unit. If the selling price is given by the equation p 1/10x+60 , express
asked by Anne 
math
Find the angle of elevation of the top of a vertical pole 23long from a point on the ground 10away from the foot of the pole l
asked by Gertrude 
Physics
In projectile motion, what angle would the same distance as a 45 degree angle?
asked by Lester 
Math
Rectangle perimeter and area length =2ft width =14in
asked by James 
Chemistry
What problems might arise if the anesthesiologist did not know the patient's higher body temperature?
asked by Tayler 
math
Students noticed that the path of water from a water fountain seemed to form a parabolic arc. They set a flat surface at the level of the water spout and measured the maximum height of the water from the flat surface as 6 inches and the distance from the
asked by Anne 
pascal programming
Write a program that reads in the users age and determines if the user is a child or adult
asked by tamara 
Maths
5 kids (A, B, C, D and E) are playing games in the playground. In each round, they follow the rules below to pass on the toy on their hands to the next kid: A→C, B→E, C→A, D→B, E→D. Initially, A and B are holding the car toy each while C, D and E
asked by Math help 
Maths
The ratio between the slant height and perpendicular height of a cone is 5:4.The radius of the base of the cone is 6cm.How to find slant height of cone?
asked by Geethika 
Maths
A spider has 8 legs, a dragonfly has 6 legs. Given a number of spiders and dragonflies altogether have 420 legs, number of spiders are 3 times the number of dragonflies, the number of spiders are?
asked by help needed 
Math
Total the ages of Apple and Benny is 38. Seven years ago, Apple was three times as old as Benny. How old Benny`s present age?
asked by Kartik 
math
The management of a company is negotiating with a union over salary increases for the company's employees for the next 5 years. One plan under consideration gives each worker a bonus of 1200 dollars per year. The company currently employs 1055 workers and
asked by help 
Math
If A Boy Spent 1\5 Of His Money,what Fraction Of The Money is Left
asked by value 
math
if there are 40 question and each question carrying 5 marks and each wrong attempt can deduct 3 marks. if someone secured 70 marks then how many question he has attempted
asked by siddhanta 
Math
Construct a given triangle AB=70mm,BC=80mm,AC=50mm.give the name of the triangle
asked by Ease udoh 
Maths
Sonia bought ribbon to decorate a gift box.she used 1/4 of the ribbon to make a bow and 1/8 to tie around the box .how much ribbon does she use?
asked by Kush modi 
Math
If driving 50 mph how fast would the person 1 mile behind them have drive to catch up with them
asked by Tammy 
chemistry
Zinc reacts with sulphur to form zinc sulphuric 16.2g.Sample of zinc is reacted with log of sulphur(Zn=65,S=32,o=16) A)Write a chemical reaction for the reaction b)Calculate the number of moles of zinc atoms that reacted. c)Number of moles of sulphur atoms
asked by Anonymous 
English
1. Write the names of the four parts of an English letter using the words in the box. (What does 'using the words in the box' modify? Is it an adjective phrase?) 2. Look at the photos and complete the sentences using the relative adverb, where. (What does
asked by rfvv 
English
1. How do you pronounce 'helpful'? It's a little difficult to pronounce, so we can delete the 'p' sound in normal pronunciation. Is that right?
asked by rfvv 
geometry
Create a wrapping paper design that includes at least four of the following constructions: a bisected angle a perpendicular line drawn from a point not on a line to a line a perpendicular line drawn through a given point on a given line a quadrilateral
asked by Student 
math
salil travels 9km towards east then8km towards north and finally 7km towards east . how far away is he from his original place?
asked by Anonymous 
math
salil travels 9km towards east then8km towards north and finally 7km towards east . how far away is he from his original place?
asked by Anonymous 
English
1. I was poor in the past. 2. I am not so rich in the present/at present. 3. I will be rich in the future.  Are they all grammatical? Can we use both 'in the present' and 'at present'? How about 'at the present'? Which one is
asked by rfvv 
math
a painter needs to cover a triangular region 60 meters by 68 meters by 71 meters. a can of paint covers 70 square meters. how many cans will be needed?
asked by keke 
Statistics
A basketball team has to play 3 games in an elimination roumd. What is the probability of them winning? A. 0 games B. 1 game C. 2 games D. 3 games
asked by V 
mayh
a ship traveling at a speed of 48.0 mph at a compass heading of 145°. the current is flowing due south at a speed of 9mph. find the resultant speed of the ship due to the current and the resultant compass heading of the ship
asked by keke 
English
1. The weather was so nice when I got to Dokdo. 2. The weather was so nice when I arrived at Dokdo. 3. The weather was so nice when I arrived in Dokdo. 4. The weather was so nice when I reached Dokdo.  Are they all the same in
asked by rfvv 
math
two forces, one of 18.4 pounds and the outer 13.1 pounds, act upon the same onject. the angle between these forces is 16.5°. find the magnitude of the resultant force
asked by keke 
math
a worker is pushing an 80lb chest up a ramp to land truck. how much force must he use in order to keep the chest from rolling back down the amp? the ramp is inclined 13.8 degrees. draw a sketch with force vectors working in this problem and solve the
asked by keke 
English
How is the weather in L.A.? 1. It's sunny and hot this time of year. 2. It's sunny and hot this time of the year. 3. It's sunny and hot at this time of year. 4. It's sunny and hot at this time of the year.  Which ones are
asked by rfvv 
English
1. Just remember to give it back in a week. 2. Just remember to turn it back in a week. 3. Just remember to return it in a week. 4. Just remember to bring it back in a week.  Let's pretend a librarian said as in the above. Are they
asked by rfvv 
Physics
Two bumper cars crash head on in an elastic collision. One car #1 was moving 2.5 m/s west and car #2 was moving 3.7 m/s east. Each car has a mass of 254 kg. What are the final velocities after the collision? I think this problem is supposed to be solved
asked by George 
chemistry
A process is carried out at constant pressure. Given that ΔE is positive and ΔH is negative, Select one: A. the system absorbs heat and contracts during the process. B. the system absorbs heat and expands during the process. C. the system loses heat and
asked by betty boop 
math
What is the percentage of 237 basketball shots taken, but only 103 made?
asked by Jay 
math
When 26 is subtracted from 3 times a number, the result is greater than 10. What number are possible?
asked by brandy 
Math
How is finding a part of a whole similar to finding a part of a set? How is it different?
asked by Tricia 
Social Studies
Serapis Captured in Greatest American Sea Victory of War Which is true of this battle? A. The Bonhomme Richard was unharmed. B. The Serapis was larger than the Bonhomme Richard. C. The Serapis was sunken by cannon fire. D. The battle took place off the
asked by Aralyn 
Math
Andy has 5 tools he uses in his carpentry shop. 2 at the tools are hammers. What fraction of the tools are hammers?
asked by Daqs 
Math
Construct an equilateral triangle of perimeter 19.5 centimeter.Measure and verify that each angle measures 60 digrees
asked by Dev 
PHYSICS
A 3.5 kg block is pushed along a horizontal floor by a force of magnitude 15 N at an angle 40° with the horizontal (Fig. 619). The coefficient of kinetic friction between the block and the floor is 0.25. Calculate the magnitudes of (i) the frictional
asked by Carmen 
math
Four products are processed sequentially on three machines. The following table gives the pertinent data of the problem. Manufacturing time (hr) per unit Machine Cost per hr ($) Product 1 Product 2 Product 3 Product4 Capacity (hr) 1 10 2 3 4 2 500 2 5 3 2
asked by nk 
math/fractions
Jack's Regular work week is 40 hours. one week he worked 4/5 of the time. How many hours did he work that week?
asked by carlos Santiago 
english
In front of which building in Washington, D.C., did Dr. Martin Luther King, Jr., deliver his “I Have a Dream” speech in August 1963?
asked by cede 
Science
Is there a relationship between the dates for first land plants, fish, reptiles, mammals, primates, and humans and the amino acid differences?
asked by Emma 
physics
. Two positive point charge of 12 μC and 8 μC are 10 cm apart. The work done in bringing them 4 cm closer is,
asked by shayna 
Social Studies
Refer back to the text about the benefits of agriculture for ancient Egyptians. List three benefits. Write advertising slogans to promote agriculture to ancient Egyptians. Use your slogans to make a presentation about one or more benefits. Brainstorm one
asked by Katrina 
Chemistry
What mass of water in Gram can be heat from 300 K to 315 K by addition of 600 Joules of heat ?
asked by Kiki 
Check spanish answers
5. Which of the following would be best to drink while running a marathon? un bistec una gaseosa un batido agua 6. What is the best response to the following question? ?De donde eres? Soy de los Estadoes Unidos Estoy de los Estados Unidos Ser de los
asked by Please someone help me 
Social Studies
1.What prompted the call to rewrite the Articles of Confederation? A:The desire to win independence by unifying the nation B:The economic downturn caused by the limitations on the central government C:The need to establish a national court system to deal
asked by Help please 
math
Hi guys, I am really stuck with this problem, maybe somebody could help me out. A rancher has 2100 feet of fencing with which to construct adjacent, equally sized rectangular pens as shown in the figure above. What dimensions should these pens have to
asked by Frank 
Chemistry
A 1 g sample of water at 373 K is cooled by the removal of 100 J . what will be the final temperature of the water
asked by Kiki 
math
solving using the law of sines or cosines. a=75°,B=?,C=?,a=18cm,b=9cm,c=?
asked by dee 
math
solve using law of sines or cosines A=?,B=51°,C=?,a=6m,b=?,c=7m
asked by dee 
Interest
How much should you invest at 4.4% simple interest in order to earn $85 interest in 11 months?
asked by Trump 
Chemistry
What is final temperature of a 88 gram sample symbol of water at 295 k that absorbs 1250 Joules of heat ?
asked by Kiki 
Algebra 2
Please help super confused!!! Which points are the best approximation of the relative maximum and minimum of the function? f(x)=x^3+3x^29x8 a. Relative max is at (3,13), relative min is at (3,19). b. Relative max is at (3,19), relative min is at
asked by Olivia N J 
physics
The mass of the Earth is 5.972kg, and the radius of Earth is 6, 371 km. A 750 kg satellite orbits 35, 800 km above Earth in a perfectly circular orbit. 1. If the gravitational force is the centripetal force keeping the satellite in a stable cicular orbit,
asked by LESTER 
American Government
I need help on my American Government quiz.. Not looking for answers but for someone to see if mine are right, and if not, to help me out. Thanks! 1. When categorizing the Executive Offices of the President, what can you assume when noting the number of
asked by K 
Calculus
The post office ships a package using large package rates if the sum of the length of the longest side and the girth (distance around the package perpendicular to its length) is greater than 84in and less than or equal to 108in. Suppose you need to ship a
asked by Danny 
Calculus  Optimization
The post office ships a package using large package rates if the sum of the length of the longest side and the girth (distance around the package perpendicular to its length) is greater than 84in and less than or equal to 108in. Suppose you need to ship a
asked by Danny 
Calculus  Word Problems
Suppose a spherical snowball is melting at a constant rate of 0.20in per hour. How fast is the volume changing when the radius is 10in?
asked by Danny 
math
a computer cost $40,000 to purchase.Renting the same computer requires making $5000 , nonrefundable deposits and monthly payments of $2500.After how many months will the cost to rent the computer equal the cost to purchase it?
asked by Ana 
math
5 oranges when removed from a basket containing three more than seven times as many oranges,leave how many oranges in the basket?
asked by Ana 
Maximal area and dimensions of a window
Hey Jiskha, came across this problem in my maths homework and I can't seem to solve it. Can someone maybe help me out? A Norman window has the shape of a rectangle with a semi circle on top; diameter of the semicircle exactly matches the width of the
asked by Frank 
math
if the length of a rectangle is onethird the perimeter of the rectangle,then the width of the rectangle is what fraction of the perimeter?
asked by Ana 
Math
our credit card has a balance of $5800 and an annual interest rate of 18 %. You decide to pay off the balance over three years. If there are no further purchases charged to the card, a. How much must you pay each month? b. How much total
asked by Tasha 
Graphing Linear Equations and Inequalities
Fill in the ttable below for the equation. Then graph the line on the grid by selecting two of the points from your table. 3x+4y=16 x y −4 0 4
asked by DAISY 
Social Studies
Refer back to the text about the benefits of agriculture for ancient Egyptians. List three benefits. Write advertising slogans to promote agriculture to ancient Egyptians. Use your slogans to make a presentation about one or more benefits. Brainstorm one
asked by Mattyyy 
Social Studies
How did the supreme court decision in Worcester v Georgia and the Indian Removal Act lead to the removal and resettlement of native American groups?
asked by AlyaK 
Math Ms. Sue help me
What does it mean to say that a number is a perfect square? Give one example of a number that is a perfect square and one that is not. Can you plz help me?
asked by Valerie 
Geometry
A tank in the form of a right rectangular prism (see figure below) has dimensions 1m x 2m x 3m. If the tank is filled with water, what is the mass of the water (in kg)? Write your answer with no comma and unit. (1 cm3 = 1 gram).
asked by LAWRENCE 
Math
when adding /25 and 9 which type of number is the sum? Plz help me
asked by Valerie 
Spanish
Which Spanish verb would you use to ask the following question? "What is your name?" A)estar B)ser C)hacer D)tener Is it D? I'm not sure, can someone pls help?
asked by Sam 
spanish
The meaning of family in the Spanish speaking world ___. A)includes the extended family** B)is limited to immediate family members C)includes everyone in the community
asked by Cyborg_DRAGon 
physics
consider your sitting in a chair inside the living room on a leveled floor.if you are at the origin what will be the position vector of spider on any of wall
asked by Owais 
English
Match each vocabulary word with the letter corresponding to its correct definition. A. Looted B. Irritated C. Unselfish D. Nonconformity 1. Altruistic C 2. Deviation D 3. Piqued B 4. Pillaged A Please help check my work.
asked by GummyBears18 
Trigonometry
Determine all the values of theta,0 degrees < or = theta < 360 satisfying csc(x)0
asked by Manuel 
spanish
which region of Spain has a cooler, rainier climate than others? A)Southern Spain B)Central Spain C)The Basque Country
asked by Cyborg_DRAGon 
English
Match the vocabulary words with the appropriate definitions. A.allusion B.flat character C.rhyme scheme D.stock character E.round character unchanging characterB reference to other works or eventsA complex or main characterE a recognizable but
asked by GummyBears18 
Math
Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same, what is the length of each side of the box?
asked by Lety 
ENGLISH HELP PLS
Identify the choice that best describes the sentence. 5. More than 1,000 years passed before Copernicus proposed that the earth orbited the sun. (1 point) a. simple*** b. compound c. complex d. compoundcomplex *** = my answer
asked by Chloe 
English
Read the following sentences from "The High School Step Team." As Karla turned away from Jade and walked down the hall towards the math class, she pictured her cousin shrugging her shoulders. "Okay, do whatever you think is best," Jade said. "I'll see you
asked by Alice Keign 
Maths
Suppose that the height of a hill above sea level is given by z= 1000 0.01x2 – 0.02y2. if you are at the point (60,1000) in what direction is the elevation changing fastest? What is the maximum rate of change of the elevation at this point?
asked by Shah 
English
"The High School Step Team" addresses all of the following themes except: a. practice makes perfect b. friends are always there to support one another*** c. peer pressure can be a good thing*** d. it is important to try something new before deciding
asked by Alice Keign 
English
4.The author reveals Karla's character to readers by describing. A. What Karla says, does, and thinks.**** B. How jade and other students react to Karla. C. What Karla's teachers tell her. D. Why Karla is embarrassed in the gym.
asked by GummyBears16 
Math
You are randomly selecting one catches on a 52 card deck.find the probability of selecting: a 2 or a 3 I got 2/13 A red 2 or a black 3 I got 1/13 I want to make sure it is correct This is very urgent Thanks
asked by Tim 
math
1.7/9 x 5/3= 2. 2/5 x 1 1/4= 3. 1 3/5 x 3/4 4.7/8 x 1 3/7 5. 15 3/4 x 4 PLS HELP!!
asked by Ibrahim 
English
The High School Step Team Karla’s cousin Jade urged her to join the step team. “This afternoon you should definitely try out!” Jade suggested after the final bell rang. “I know she wants the best for me,” Karla thought to herself, “but I’m
asked by GummyBears16 
Calculus
show that ((x − 1)/x) 1 Hint: try to apply the Mean Value Theorem to the functions f(x) = lnx and g(x) = xlnx. I'm having trouble applying the mean value theorem
asked by Po 
SS
What natural resource attracted other nations to trade with West and Central Africa beginning around AD 750? A. copper B. silver C. gold** D. salt Which of the following is an example of how people have adapted to the environment of West and Central
asked by Check please 
SS
1. What are the three types of productive resources? Select all that apply. (3 points) the raw materials provided by the planet the planning and work that go into production the markets that sell the results of production the social systems that ensure
asked by Green Bow7 
algebra
if Sam invested $10,000 at simple interest, some at 3% and some at 4% and paid $320 , what was the amount invested at each rate?
asked by Karen 
physics
Matt 86.0 kg and his dog 18.0 kg are playing around on a frozen lake. Matt attempts to run across the ice at 2.90 m/s and his dog runs toward him at 1.40 m/s. If his dog jumps up into his arms, what is Matt's speed just after he catches his dog?
asked by 2FUN 
Chemistry
An analytical chemist weighs out 0.225g of an unknown diprotic acid into a 250mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.0700M NaOHsolution. When the titration reaches the equivalence point, the
asked by Audrey 
physics
A missile is fired form the back of a stationary truck. The missile takes off at a speed of 41.7 m/s and has a mass of 53.8 kg. If the truck has a mass of 856 kg, what is the recoil speed of the truck?
asked by 2FUN 
English
Read the following lines from the poem "a contribution to statistics" "glad to lend a hand if it doesn't take too long as high as fortynine, always good because they can't be otherwise four, well maybe five, the speaker shares high and low statistical
asked by carma 
Physics
A 3.70 kg bird is flying past a tree that has a 4.70 kg chipmunk in it. The chipmunk decides to jump on the bird so he can fly too. As the bird is flying past the tree, the chipmunk leaps off at 8.00 m/s in the same direction the bird is flying and lands
asked by HELP ME!!!!!! 
Science
Calculate the displacement and velocity at time of 0.5secs for a ball thrown straight up with an initial velocity of 15m/s.
asked by Tobias 
physics
Two people, George who has a mass of 93.0 kg and Victoria who has a mass of 60.0 kg, are on a frozen circular pond. They stand at the very centre and push off of each other. The distance from one side of the pond to the other is 83.0 m and it takes George
asked by 2FUN 
physics
For shooting practice a person uses a pellet gun and an empty pop can. The pop can rests on a flat surface that has a coefficient of kinetic friction 0.500. The pellet has a mass of 0.140 kg and the pop can has a mass of 0.470 kg. After the pellet is fired
asked by HELP ME!!!!!! 
Physics
At the centre of a circular ice rink, a 87.0 kg ice skater moving 2.10 m/s north hits and grabs onto a 51.0 kg ice skater who had been traveling west at 5.35 m/s. If the skaters hold onto each other and the rink has a 26.0 m diameter, what is the amount of
asked by HELP ME!!!!!! 
physics
A basketball explodes into three separate pieces. Two pieces of equal mass shoot off at 20.3 m/s, one travelling to the south and one to the west, perpendicular to each other. The third piece has a mass 4 times the size of one of the other pieces. What is
asked by Help please!!! 
maths
Find the radius of a circle given that the circumference is 66cm.
asked by indira 
science
In the equation below, suppose 11 grams of Zinc (Zn) react with 12 grams of Hydrogen Chloride (2HCl) to form 16 grams of Zinc Chloride (ZnCl2) and an unknown amount of Hydrogen gas (H2). Zn + 2HCl → ZnCl2 + H2 Based on the Law of Conservation of Mass,
asked by Luc 
Math
A Russian mathematician named Christian Goldbach came up with a theory that every even number greater than 4 can be written as the sum of two primes. Test Goldbach's theory with the numbers 6 and 50
asked by Abigail jones 
Chemistry
In 1985 benitoite became the California "state gemstone." Found only in a tiny mine near Coalinga, California, it is a silicate of barium and titanium with trace impurities that cause a range of hues from colorless to blue to pink. Its general formula is
asked by Joe 
Chemistry
Potassium chlorate, KCIO3, acts as an oxidizing agent in matches, explosives, flares, and fireworks. In the equation below, it is formed from the element chlorine and potassium hydroxide. 3 Cl2+ 6KOH=KCIO3+5KCL+3H2O Write a conversion factor that could be
asked by Joe 
maths
After 3 red buttons on a pattern, 4 black buttons are placed. After using 15 red buttons. how many black buttons are used?
asked by indira 
Physics
A 1340kg car traveling east at 13.6 m/s (20 mi/h) has a headon collision with a 1930kg car traveling west at 20.5 m/s (30 mi/h). If the collision time is 0.10 s, what is the force needed to restrain a 68kg person in the smaller car? In the larger car?
asked by Batman 
Chemitry
Consider the neutralization reaction that takes place when hydrochloric acid reacts with aqueous calcium hydroxide Write a conversion factor that relates moles of hydrochloric to moles of calcium hydroxide for this reaction
asked by Joe 
true
find the resultant of two vectors of 3units and 4units acting at a point,o at an angle of 45 degrees with each other
asked by true 
American Government
1) What characteristics do bureaucracies share? Select all that apply. A) formal rules** B) generalized jobs** C) clearly defined goals D) chain of command** E) elected staff 2) Which of the following is part of the executive branch bureaucracy? A) the
asked by Juliet 
Math
One square wall you want to paint has a perimeter of (12x  32) feet. Write an expression that represents the side legnht of the wall.
asked by Kim 
Algebra
Electrician charged $50 a house call and $65 dollar an hour. Will it be cheaper for him to work 6hrs or 2 3hour jobs?
asked by Judy 
Algebra
Electrician charged $50 a house call and $65 dollar an hour. The job is 6 hours long Will it be cheaper for him to work 6hrs or 2 3hour jobs?
asked by Judy 
Math
Andy has 5 tools he uses in his carpentry shop. 2 at the tools are hammers. What fraction of the tools are hammers?
asked by Anonymous 
Physics
At the centre of a circular ice rink, a 67.0 kg ice skater moving 2.00 m/s north hits and grabs onto a 41.0 kg ice skater who had been traveling west at 4.30 m/s. If the skaters hold onto each other and the rink has a 42.0 m diameter, what is the amount of
asked by Can you do this ? 
Math
What do you need to know to name a fraction? How do you name a fraction?
asked by Daqs 
Math checking answers (Calculus Differentials)
The radius of a spherical balloon is measured as 8 inches, with a possible error of 0.02inch. a) Use differentials to approximate the possible propagated error in computing the volume of the sphere. b) Use differentials to approximate the possible
asked by Ray 
maths
the lid of a tin has a circumference of 88cm. given that the Area of the Lid is 616cm squared. What is the volume of the can?
asked by indira 
chemistry
The average molar mass of a natural gas is 17.4g/mol consisting of CH4 and C2H6,what is the molar fraction of each gas?
asked by John 
Maths
the height of the can is 20cm Ms. Sue
asked by indira 
Math
Jeremy loves right triangles that have side length 1. In fact, he loves to combine them so that the hypotenuse of one becomes the leg of the next. If the longer leg of the first triangle is sqrt 11, what will be the hypotenuse of the 2014th triangle? I
asked by D 
Science
When is the end of the world
asked by Rita 
College algerba
The halflife of a certain radioactive element is about 1500 years. After 2800 years, what percentage P of a sample of this element remains?
asked by Samantha 
Math
IM SCARED 1!1!1!1!1!1!11. Qqnqn
asked by I feel pain 
Math
Yasmin had 3 bananas. She shared them equally among 4 people. Write an expression that shows how much banana each person got.
asked by Angelo 
Physics
A man stands on a freely rotating platform, as shown, holding an exercise dumbbell in each hand. With outstretched arms, his angular speed is 1.5 rad/s. After he has pulled his arms in, as shown, his angular speed is 5 rad/s. What is the ratio of his final
asked by Anonymous 
Physics
A sign weighing 500N is suspended at the end of a uniform 300N beam 5m in length, as shown. The beam is attatched to the wall with a hinge, and its other end is supported by a wire. What is the tension in the wire if it makes an an angle of 30o with the
asked by Anonymous 
maths
what number must be added to 7/12 to get two wholes
asked by indira 
maths
how do u paste a diagram on page please
asked by indira 
yhsh
A scientist determined that the bones from a mastodon had lost 79.579.5â€‹% of theirâ€‹ carbon14. How old were the bones at the time they wereâ€‹ discovered?
asked by yccc 
TIME
What time does this website go by? eastern, Pacific, etc. because I am getting confused becasue of it. Right now it is 2:34pm for me and It is exactly 3 hours ahead of me if that helps.
asked by Anonymous 
Chemistry
If 4.00g of iron metal are reacted in a calorimeter with a heat capacity of 500J/ degree Celsius, what would be the final temperature of the calorimeter if its initial temperature were 23.0 degree Celsius?
asked by Diya 
Math
Manuel bought 9 pounds of apples. He has eaten three fourths of a pound so far and has $15 worth of apples left. Write and solve an equation to find the cost of the apples per pound to the nearest dollar. How much did the apples cost per pound?
asked by Kyle 
maths
every 20m along a street there are lamppost from beginning to end. a) the street is 800m long. How many lamppost are there on the street? b) how many 20m spaces are there along the street? c) Frankie lives between the lampost 21 and 22. How far from the
asked by indira 
MathGeometry
Definition of Scalene triangle
asked by Shaw 
maths
After every three red buttons on a pattern, four black buttons are placed. After using 15 red buttons, how many black buttons are used
asked by indira 
Math
Draw a number line to show that 2/3 and 4/6 are equivalent..Im having trouble with this..I'm in the 4th grade..I need help
asked by Dobe 
Algebra
Separate 51 into 2 parts so the second part is 3 more than twice as large as the first part
asked by Melissa 
maths
every 20m along a street there are lamppost from beginning to end. a) the street is 800m long. How many lamppost are there on the street? b) how many 20m spaces are there along the street? c) Frankie lives between the lampost 21 and 22. How far from the
asked by indira 
Information Technology (Pascal algorithm)
Ask the user to enter the discount percentage(rate) offered in a sale Accept the discount percentage from the user Ask the user to enter the price for three different sales item Accept the prices of the three sale items Compute the total price of the three
asked by Binky 
Physics
If you reduce the distance between two point charges to one third of the original distance, the electromagnetic force changes by a factor of:
asked by Maria 
English
What is the one prediction for the upcoming pages of the novel becoming naomi leon
asked by Favour 
Math
AA climbing gym charges $10 to climb each day.A pair of climbing shoes costs $84.it costs $169 to buy 6 days of climbing,one pair of climbing shoes,and one harness.how much does a harness cost
asked by Bob 
math
the mass of a moon rock is 3.5 kilograms what is the moon rock in grams
asked by emily 
Geometry
Given IE is congruent to GH, EF is congruent to HF. F is the midpoint of GÌ. Prove the triangles EFI is congruent to HFG. . Can you please help me to understand how to do this problem? I don't understand how to find a proof. Thank you so much for your
asked by Marina 
English
What is one important events that happened from the novel becoming naomi leon
asked by Favour 
Physics
In a calorimetry experiment, an object of mass M= 9.2 kg falls through a height of 35.5 m and, by means of a mechanical linkage, rotates a paddle wheel that stirs m= 0.92 kg of water. The water is initially at 20∘C. What is the maximum possible
asked by Gabriel 
Physics
A person makes a quantity of iced tea by mixing 668 g of hot tea (essentially water) with an equal mass of ice at its melting point. If the initial hot tea is at a temperature of 86∘C, what are the (a) final temperature of the ice tea (in ∘C) and (b)
asked by Gabriel 
Science
I am doing an Animal project , I need a picture to show how an animal had bilateral symmetry! I couldn't find any pictures that could actually show that. Can you pleas help me? Thank you
asked by Melody 
Math
Mr. Robbins spilled stain on part of a tiled floor. The whole section of floor was shaped like a rectangle. There were 45 squares in the section. How many squares were in each row?
asked by Ming 
Chem
What is the pH of .1M: FeSO4 Na2HPO4 NaH2PO4 NaF
asked by Abby 
Chemistry
What is the value of [h3o] in a solution where [oh]=4.20x10^6
asked by Becca 
Trig
Find the exact value of the trigonometric function given that sin u=3/5 and cos v=8/17. Both u and v are in quadrant II. Tan (u+v)
asked by Lynn 
Physics
A 1340kg car traveling east at 13.6 m/s (20 mi/h) has a headon collision with a 1930kg car traveling west at 20.5 m/s (30 mi/h). If the collision time is 0.10 s, what is the force needed to restrain a 68kg person in the smaller car? In the larger car?
asked by JJ 
Chemistry
A synthesis yielded 222g of phosphoric acid. How many moles of phosphoric acid were produced? I keep dividing 222g/98g (molar mass) which gives me 2.265. Every time I put the answer in, it tells me I am wrong.
asked by Raeann 
chemistry
Blue copper sulfate pentahydrate (CuSO4.5H2O) crystals were heated to give the white monohydrate. What percentage of water was lost? (molar mass of CuSO4.5H2O is 250.5 g/mol)
asked by Savannah 
Mathematics
What number is 10 tens morw than 16,ones?
asked by Anonymous 
english books
In the book FAHRENHEIT 451, how does Faber change Montag's view on book?
asked by Andrea 
Math 7 grade
Mae Ernst 15% commission for selling furniture this week sells $ 7500 worth of furniture how much commission does she earn
asked by Ina 
Math
The distance between bills house and his aunt house is 835 miles. About how many miles would he drive if he made. 4 onewat trips
asked by Mariah 
Math
A tenfootlong board is cut into three pieces. The second piece is half as long as the first. The third piece is 4 feet longer than the second. How long is the first piece? Answer: 2 3/4 feet If f(x)=2x2+1/2x4, what is f(1/2)? Answer: 15/4 **I am
asked by Jess 
Differential calculus
Find the equation of the parabola w/ v(3,4) and with directrix y=0.
asked by Mohammed 
Social Studies
What country set up the first merchant company
asked by William 
Math
Liam earns 5% commission on all computer he sells this week he earned $500in commission .how much money did he sells in computers
asked by Anna 
Social Studies
Belief in one God
asked by Anonymous 
algebra
4b/2 + 3 = 11 + b i know the answer is b=8 but i want to know how
asked by sam 
math
Compare the numbers mc0121.jpg and mc0122.jpg. Use the symbols , or =.
asked by kayley 
Math
What is the value of 2 thousands,18 tens,4 hundreds,and 9 ones?
asked by Tishica 
algebra
the length of a rectangle is 5 times its width. if the length is decreased by 3 meters, and the width is increased by 10 meters, the perimeter will be 374 meters. find the length of the original rectangle.
asked by kaitlyn 
Math
The coffee shop sold 28 liters of hot chocolate. If the same amount is sold each hour for 4 hours, how many liters of hot chocolate did the coffee shop sell each hour?
asked by Yoobi 
Math
Evaluate the expression. (5+11) X (10(3)) 16 X 13= 208
asked by Hayden 
Chemistry
Calcium Fluoride, CaF2, adopts the fluorite lattice, which is described as a facecentered cubic array of Ca2+ ions with F1 ions with Ca2+ ions in half of the cubic holes. The Radii of Ca2+ and F1 are 126 and 117 pm, respectively. Calculate the density
asked by john 
Income Tax
Della purchased a warehouse on February 25, 2015, for $350,000. $45,000 of the price was for the land. What is her cost recovery deduction for 2015 rounded to the nearest dollar?
asked by Anonymous 
Tim
Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^298 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions)
asked by Functions 
university physics
two suitcases are on a 7.89 m high ramp to passengers waiting in a baggage terminal. The top suitcase is released from rest, and it slides down the ramp and hits the second suitcase. If the suitcase at the top has a mass of 16.6 kg and the other suitcase
asked by jenna 
Physics
A 5.20 g pellet is shot horizontally from a BB gun at a speed of 29.1 m/s into a 20.8 g wooden block. The wooden block is attached to a spring and lies on a frictionless table. If the collision is inelastic and the spring constant k = 22.0 N/m, what is the
asked by Shane 
thomas middle such
what is the three digit mystery number? if it is less than 300. the tens digit is 5 more than the hundreds digit. the sum if the digits is 11. the hundreds digit is 3 less than the ones digit. the mystery number is
asked by jon 
Algebra
The difference of 2 numbers is 96. The larger number is 5 times the smaller number. What are the 2 numbers.
asked by Anonymous 
Math
50x to the 4th power/12x
asked by Destiny 
PHYSICS
A force of 0.65 N is required to hold a spring extended 5.3 cm from its equilibrium position. Calculate the spring of constant of spring?
asked by Carmen 
Math
2x7 x6    = 0 4. 7 Find x?
asked by Laila 
Math
Solving missing variable √ 3 √ 2x+3 = √ 5x6
asked by Emma 
chem
A chemist is commissioned to produce twenty pallets of aspirin: C7H6O3 (salicylic acid) + C4H6O3 (acetic anhydride) → C9H8O4 (aspirin) +C2H4O2 (acetic acid) Given a bottle contains 500 tablets (each containing 325 mg of aspirin). A case contains 144
asked by Taylor 
Math !!!
Tian has 56 paper clips. He gives 3/4 of them to Joe. Joe gives 2/7 of what he receives to Rahul. How many paper clips does Rahul get?
asked by David 
Math !!!
Tony is given 9/10 hour to mow a lawn. He only uses 2/3 of the given time to mow the lawn. How much time is left?
asked by David 
Math !!!
Kieth spends 1/6 of his savings on a magazine and 2/5 of the remainder on a book. What fraction of his savings is left?
asked by David 
French
How do I translate these in passive voice? I don't understand. Help 1. On communique les résultats financiers aux employés. = Les résultats financiers …………………… aux employés. 3. On soumet les recommandations au conseil
asked by Sophia 
Math!!!
There are some hats in a box.1/6 of them are red, 1/3 are blue, and 3/7 of the remainder are green. If there are 27 green hats, how many hats are there altogether?
asked by David 
French!
Please if possible, respond to this and the other question by 11:00 a.m tmrw. 11/15/16 . Thankyou! ____________________________________ The next part is asking for active voice into passive but I'm not sure how to change it. Really Confused! I need help.
asked by Sophia 
Chemistry
How much mg of iron are there in 100g of spinach. if we burned 5.20g of spinach and added 10 ml of 2.0 M HCl into the spinach ashes.Then filtered the ashes and used 5 ml of that solution to put it in a testube and added 5 ml of 1.5 M KSCN in the testube.
asked by Jason 
Math : )
There are some hats in a box. 1/6 of them are red, 1/3 are blue, and 3/7 of the remainder are green. If there are 27 green hats, how many hats are there all together?
asked by Karen D 
Math : )
Lily receives 30 messages on her cell phone. Of those messages 1/5 are picture messages and 7/8 of the remainder are text messages. How many text messages does she receive?
asked by Karen D 
chemistry
Calculate the final temperature that results from mixing 245 grams of cobalt, specific heat 0.446 J/g0C, at 1420C with 106 grams of water at 24.80C.
asked by cao 
physic
A long wire carrying a 6.0 A current perpendicular to the xyplane intersects the xaxis at x=âˆ’2.0cm. A second, parallel wire carrying a 2.0 A current intersects the xaxis at x=+2.0cm. At what point on the xaxis is the magnetic field zero if the
asked by Anonymous 
College Calculus
A radioactive substance has a halflife of 27 years. Find an expression for the amount of the substance at time t if 20 grams were present initially.
asked by Jaken 
chemistry
I post this question two time before but the degree sign is wrong so I post this one with everything corrected for the final time. Thank upon who answer this question on the other 2 same question before. Calculate the final temperature that results from
asked by cao