Questions Asked on
October 27, 2015

English
Identify the correct sentence: A.While studying for her psychology test,Francina had trouble concentrating because her friends were calling her, her brother's blasting stereo and her dad mowing the lawn. B.While studying for her psychology test,Francina
asked by Terri 
Chemistry
What is the bond enthalpy of N2(g)+2H2(g) > N2H4(g)?
asked by E 
Chemistry
Please help me N2O5(g) + H2O(l) > 2HNO3(l) delta H° = 76.2 kJ H2O(l) > H2(g) + 1/2O2(g) delta H° = 286.0 kJ 1/2N2(g) + 3/2O2(g) + 1/2H2(g) > HNO3(l) delta H° = 174.0 kJ Calculate delta H° for the reaction 2N2O5(g) > 2N2(g) + 5O2(g)
asked by Brooke 
Precalc
•You have a wire that is 71 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a right triangle with legs of equal length. The other piece will be bent into the shape of a circle. Let A represent the total area enclosed
asked by Bethany 
Physics
During a road test,a driver brakes a 1420kg car moving at 64.8km/h [W]. The car slows down and comes to a stop after moving 729m [W]. What is the net force acting on the car?
asked by Jeena 
Math
How many 1 inch squares can be cut from an 18"x24" piece of contruction paper
asked by Alyssa 
PHYSICS
THREE TOWNS A,,B,C ARE SITUATED SO THAT AB=100KM . THE BEARING OF B FROM A IS 060 AND THE BEARING OF C FROM A IS 290 DEGREES . CALCULATE THE DISTANCE OF C FROM A .
asked by Anonymous 
analytical chemistry
The nitrogen content of a .2476 g sample of a protein was determined by the Kjeldahl method. The NH3 produced with the whoosh was distilled into exactly 50.00mL of HCl in the receiving flask, which was in excess of the amount required to capture the
asked by Anonymous 
math
the cost in dollars of a school banquet is 74+12n where n is the number of people attending what is the cost for 52 people ? a.$550 b.$698 c.$624 d.$138
asked by mouse 
maths
Suppose that a state university has to form a committee of 5 members from a list of 20 candidates out of whom 12 are teachers and 8 are students.If members of the committee are selected at random,what is the probability that the majority of the committee
asked by sam 
Social Studies PLEASE HELP!
1. The first successfully established English colony in North America was (1 point) Plymouth. New York. Jamestown. Santa Fe. 2. Protestants who wanted to reform the Anglican Church were called (1 point) Pilgrims. Puritans. Plymouthians. priests. 3. How did
asked by Help Please 
SS
What was the approximate distance from San Lorenzo to La Venta? A. 150 miles B. 100 miles C. 75 miles D. 25 miles I think it's C. It's not B.
asked by Anonymous 
Chemistry
Consider the reaction of Lithium with water: 2 Li(s) + 2H2O(l) > 2 LiOH(aq) + H2(g) The delta H of the reaction is 160 KJ The enthalpy of fusion of H2O is 6.0 kJ/mol The specific heat capacity of H2O(l) is 4.18 J/gC When 10 grams of Li(s) is dropped
asked by Vinit 
finite
Urn A contains four white balls and five black balls. Urn B contains seven white balls and six black balls. A ball is drawn from Urn A and then transferred to Urn B. A ball is then drawn from Urn B. What is the probability that the transferred ball was
asked by haley 
Math
write in expression that represents four less than half a number, n
asked by Hasan 
math
Solve for x: 3x − 5 = 2x + 6.
asked by bb 
math
John can drive 50 miles on two gallons of gasoline. How many gallons will he need to go 298 miles? A) 12.10 B)5.96 C) 8.90 D) 11.92
asked by Dondi 
Math
How do I find the solutions for cos2x  cos6x = 0?
asked by Anonymous 
Physics
An archer shoots at a target 60m away. If she shoots at a velocity of 55m/s [right 3degrees above the horizontal] from a height of 1.5m, does the arrow reach the target before striking the ground? What should the archer do to get her next shot on target?
asked by Mackenzie 
maths
answer of the effective annual rate of interest corresponding to a nominal rate of 6% per annum payable half yearly is
asked by nakul 
pleazzzzee help
oyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use the composition to find
asked by cierra 
algebra
a number increased by 7 is minus 23
asked by Anonymous 
precalc
Solve in radians. 1) sin2X = 1/2 2) tan2 (X + pi/2) = 1 3) 5  3sec (X  pi/4) = 1
asked by j 
Chemistry
A swimming pool, 10.0 m by 4.0 m, is filled with water to a depth of 3.0 m at a temperature of 20.2°C. How much energy is required to raise the temperature of the water to 24.0°C?
asked by Stacey 
language
Which of the following sentences demonstrates proper subjectverb agreement? a) Physics is a difficult subject to learn. b) Measles usually spread through respiratory fluids. c) The study of various sciences are compelling. d) News travel fast
asked by alixie 
math
How are the real solutions of a quadratic equation related to the graph of the quadratic function?
asked by cj 
Physics
What is the resultant of a vector that has components 25 m/s east, and 25 m/s north?
asked by Ana 
Algebriac Expressions
2 less than 7 times a number = 2) Sarah's age decreased by 2 = 3) One third as many books = 4) Earns $13 per hour = 5) 4 years younger than Marcus 6) 2 times a number, decreased by 4 7) 9 less than the product of 15 and a number 8) The quotient of a number
asked by Joetta 
language arts...please check my answers
choose the linking verb to complete the sentence Gemma _____ the first female winner of the annual poetry contest? congratulated photographed became knew
asked by lilly 
Dallas can
Suppose you invest $2000 at an annual interest rate of 5.1% compounded continuously. How much will you have in the account after 3 years? Round the solution to the nearest dollar
asked by Jair 
chemistry
The nitrogen content of a .2476 g sample of a protein was determined by the Kjeldahl method. The NH3 produced with the whoosh was distilled into exactly 50.00mL of HCl in the receiving flask, which was in excess of the amount required to capture the
asked by lisa 
business statitics
a) The mean lifetime of a sample of 100 light tubes produced by a company is found to be 1570 hours with standard deviation of 80 hours. Test the hypothesis that the mean lifetime of the tubes produced by the company is 1600 hrs. (7 marks)
asked by john 
E.L.A.
Which sentence below is properly punctuated? a. When you arrive on the train, take a taxi to the bus station; I can meet you at the bus station. b. When you arrive on the train: take a taxi to the bus station; or I can meet you at the train. c. When you
asked by grep 
Math
Trina works after school and on weekends. She always works three days each week. This week she worked 2 3/4 hrs on Monday. 3 3/5 hrs on Friday and 5 1/2 hrs on Saturday. Next week she plans to work the same number of hrs as this week but will work the same
asked by Crystal 
chemistry BOB
is this the answer to B ) CH3CH2OH + 3O2 → 2CO2 + 3H2O In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and ethanol are "burned" to water vapor andCO2. Write a combustion
asked by Mark 
precalc
solve in degrees 1) 2sin2 (x/4) = 1 2) 2 cos (3x) + 1 = 0 3) cot2 (x + 18°) = 1 4) (1 + tan(x + 87°)) / 2 = 7
asked by yani 
U.S. History
1) How did the Adamson Act improve labor conditions in the United States? A: The Adamson Act improved labor conditions in the UNited States by establishing the eighthour workday for railroad workers and provided for additional compensation for any time
asked by Victoria 
Social Studies
4. Which of the following would describe a reason the British government planned to take the South in the Revolutionary War? A. The British people were tired of the war's expenses. B. They believed the Indians would join forces with them against the
asked by Amber 
Federal polytechnic, oko
What force would be required to accelerate an electron mass of 0.009kg from rest to a velocity of 104m/s in 10 seconds.
asked by Chris 
chemistry DR BOB
is this the answer to B ) C2H5OH(liq)+ 3O2(g) > 2CO2(g) +3H2O(liq) In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and ethanol are "burned" to water vapor andCO2. Write a
asked by Mark 
math
1/3 of lunch money was spent on a sandwich, 1/2 spent on water, 1/8 spent on chips. what fraction of money is left
asked by Tonya 
language
Which of the following is a complete sentence? A. When I was young and ambitious and loved going for walks in the park. B. Running through the park and around the school before breakfast. C. Walking with a limp as a result of the wreck. D. I went walking.
asked by alixie 
History
What Demographic Transition Model stage is Belize, Cuba, GReece, Swaziland, Switzerland, Vietnam, South Korea, Niger, Uruguay,and Haiti in? Is there a website to get accurate answers? I think Belize is stage 2, Cuba is stage 3, Greece is 4, Swaziland 3,
asked by Geo 
chemistry
help!!!! is this the answer to B ) C2H5OH(liq)+ 3O2(g) > 2CO2(g) +3H2O(liq) In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and ethanol are "burned" to water vapor andCO2.
asked by Mark 
Social Studies
What triggered China's 18991901 Boxer Rebellion? a. A prolonged famine that had killed thousands of Chinese b. The presence of westerners*** c. The imprisonment of university professors d. The government's massacre of a village's peasants Just checking my
asked by Kaai97 
Math 3
what is the local max and local min of y= 1/21(x3)(x3)(x+7)
asked by Nagwa 
Trigonometry
I am having trouble solving this. A rocket tracking station has two telescopes A and B placed 1.7 miles apart. The telescopes lock onto a rocket and transmit their angles of elevation to a computer after a rocket launch. What is the distance to the rocket
asked by Marina 
physics
On the once popular show “Knight Rider,” the trickedout car (for the 80s, anyway), Kit, 1. drives up a ramp and into the back of a semi truck while the truck is moving. A viewer once expressed disbelief that this is possible. Assuming that Michael
asked by reddy 
Algebra 2
Can someone please help me solve this absolute value equation? The equation is: 4t29=37 The thing I don't understand is how to isolate the absolute value (t2). Do I divide both sides by 4 and then add both sides by 9? In that case I would get
asked by Lola 
Chemistry Dr. BOB
I don't get it!! In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and enthanol are "burned" to water vapor andCO2. Write a combustion reaction for ethanol. I need help with
asked by Mark 
Physics
A 200 N box is pushed up an incline 10 m long and 3 m high. The average force (parallel to the plane) is 120 N. a.) How much work is done? b.) What is the change in the PE of the box? c.) What is the change in KE of the box? d.) What is the frictional
asked by Ana 
Ed Tech. PLZ HELP ASAP
2.To publish your slide show as movie what should you click on first? A.File B.Animations C.Slide Show D.View 3.What is the purpose of slide timings? A.To tell the user how long to wait before clicking the mouse B.To set the time each slide will be shown
asked by regan 
11 Grade College Prep MathBased Physics
Not good at physics, so could someone check these practice test questions please? Explanations are appreciated. 1. Which of Newton's Laws says you cannot touch anything without being touched? a) 4th b) 2nd c) 1st d) 3rd *** 2. A 3.00 kg ball is dropped
asked by Ana 
mam college
find the common ratio of the geometric progression ¼ ½ 1—2
asked by jabeer 
algebra or algebra1
An eastbound car is going 4 miles per hour faster than a westbound car. The cars are 208 miles apart 2 hours after passing each other on a highway. What is the speed, in miles per hour, of the eastbound car
asked by sue 
Astronomy
Why is the greenhouse effect on Earth not as drastic as on Venus? There is no carbon dioxide in Earth’s atmosphere. The oceans dissolved much of the carbon dioxide. Earth is smaller than Venus so it can’t hold the gases in the atmosphere. There is more
asked by Sandra 
chemistry Dr BOB
is this right? C2H6O + 3O2 = 2CO2 + 3H2O In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and enthanol are "burned" to water vapor andCO2. Write a combustion reaction for
asked by Mark 
Art history
Write a 350 to 500word story about being a prehistoric artist. I don't know what to write about can u please help me.
asked by Catrina 
English Language
Find the complete subject and complete predicate in the following sentence: His choice included land in both Maryland and vVirginia.
asked by Linda 
Algebra
I am having a hard time with this question. A boat went 15 miles downstream in 1 hour and then returned upstream to its dock in 5/3 hours. if the current of the stream was constant, find the speed of the boat in still water and the speed of the current
asked by Marina 
English
Posted by rfvv on Sunday, October 25, 2015 at 4:37pm. Q1: Is Yosemite short for "Yosemite Valley"? Q2: Does Yosemite stand for "Yosemite National Park"?•English  Ms. Sue, Sunday, October 25, 2015 at 4:44pm Usually, Yosemite refers to the national park.
asked by rfvv 
chemistry
2. A 500 mL saturated silver carbonate solution at 5¢XC is treated with hydrochloric acid to decompose the compound. Ag2CO3(aq) + 2HCl(aq) ¡÷ 2AgCl(s) + CO2(g) + H2O(l) The carbon dioxide generated is collected in a 19 mL vial and exerts a pressure of
asked by yung 
history
DIRECTIONS: Read the informational passage below. Then complete the activity that follows. Be sure to write in complete sentences using reason and evidence from the text. Leonidas (c. 530480 B.C.) was a king of the citystate of Sparta from about 490
asked by SE 
english
Why does Neiterkob’s daughter most likely tell the myth “The Beginnings of the Maasai”?
asked by enide 
chemistry DR BOB!
is this the answer to B ) C2H5OH(liq)+ 3O2(g) > 2CO2(g) +3H2O(liq) In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and ethanol are "burned" to water vapor andCO2. Write a
asked by Mark 
math
5 inches is what fraction of a foot? A. 1/3 B. 1/2 C. 5/12 D.5/24 my answer is C. is it correct?
asked by dave 
math
break apart the addends to find the a sum 18+26=
asked by kate 
maths
Fence post are placed 3m apart from each other. How many posts will be placed over a distance of 45m?
asked by john 
Math
karen collects 6/7 quart of rainwater. she uses 1/2 of the water to clean her bicycle and uses the remaining water equally for 3 houseplants. What volume of water does she use for each houseplant?
asked by Debbie 
physics
Power applied to a particle varies with time as P=(3t^22t+1)W. Find the change in kinetic energy between t=1s and 4s.
asked by sally 
Math
Riley and Justin shared a cash prize in the ratio 2:5. Justin received $27 more than Riley. How much money did riley get?
asked by Jake 
Math  3rd grade
Mr. Thomas travel 20miles each week to and from work. If he works 5 days a week, how many miles does Mr. Thomas travel each day to go to work? Does this mean 20miles total for the week or that it should be 40miles total(20 miles to + 20 miles from)?
asked by Jared 
Art history
Do i have to write about an artist for my poject on prehistoric history
asked by Catrina 
calculus
using the squeeze theorem, find the limit as x>0 of x*e^[8sin(1/x)] what i did was: 1
asked by Lid 
Mathstatistics
For example is this considered to be appropriate selected statistical test "(50)equal 0.45,p positive .50?
asked by Ellen 
algebra
There was a question on my quiz asking 5/6x=25 what is x. I got the answer 30.12 but my teacher says it is wrong because the answer is 30. I don't understand how to get just 30
asked by alanna 
english
I need help in figuring out the topic sentence I think that the topic sentence is I have never understood my mom's obsession with the holiday season Is this correct? The main idea is about the holidays and everyone gets along and the decorations Is this
asked by jennifer 
math
Dina has 22 dimes in his piggy bank. He has 5 times as many pennies. How much money does Jim have all together? A) 3.30 B)1.22 C)3.50 D) 1.10
asked by Anonymous 
Geography
10. Which of the following best describes a nations resistance towards immigration despite having an aging population. A. The Japanese government discourages interracial couples and encourages homogeneity of the population. B. China implemented a onechild
asked by Geog 
algebra
44 4 x (5 + 3 x 2) simplify the expression above. Which of the following is correct? A. 20 B. O C. 440 D. 640
asked by alixie 
Chemistry
A weather balloon is inflated to a volume of 26.2 L at a pressure of 755 mmHg and a temperature of 32.5 ∘C. The balloon rises in the atmosphere to an altitude where the pressure is 360. mmHg and the temperature is 13.5 ∘C. Assuming the balloon can
asked by Timmy 
Maths
Sketch the graph y=X32x5x+6
asked by Hamza ibrahim 
Biology
Some people experience “heartburn” when eating fatty, greasy foods (similar to the effect that is felt when eating acidic foods). Why would this occur with fats? I know fatty acids are made of carboxylic acid and if you have too much, would it make
asked by Charles 
science
Put the following events in order as an impression is processed by crime scene investigators Make a cast of impression set up crime scene tape photograph Take measurements
asked by n 
Uiiecest bama
A parallelogram has a base 6.5 cm and height 2.75 cm culculate its area
asked by Mohammed hussaini 
math (algebra)
A construction crew built 6 miles of road in 2/7 days. what is the unit rate in the miles per day?
asked by Anonymous 
Chemistry
How do you write the complete ionic equation and net ionic equation for ammonium chloride and copper (II) sulfate in water?
asked by Tiffany 
Uiiecest bama
If it cost #500 per/m2 to carpet a floor c find the cost of carpeting in floor which is 12m by 6.5m
asked by Mohammed hussaini 
functional programing c++
prepare an algorithm using flowchart and write a program that ask the user to enter 2 numbers, options the number from the user and print the same product, different, and contain of the two number
asked by sivasanggari 
Science
What is the lowest atmosphere on earth?
asked by Chuang 
Geometry
How do you find an endpoint with a midpoint and one endpoint?
asked by Jess 
Physics
A 27.0kg block is resting on a flat horizontal table. On top of this block is resting a 13.0kg block, to which a horizontal spring is attached, as the drawing illustrates. The spring constant of the spring is 310 N/m. The coefficient of kinetic friction
asked by Rupika 
PreCalculus
3. Joyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use the composition to
asked by PLEASE HELP 
math
Explain how you know if a number can be divided by 10 evenly
asked by Angelica 
science
Calculate 1A.U.if it takes 8,3 minutes for light to travel that far (c=300000 km/s)
asked by Duncan fourie 
math
Joyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use the composition to find
asked by cierra 
chem
Write a net ionic equation for the reaction that occurs when excess nitric acid (aq) and potassium sulfite (aq) are combined. Note: Sulfites follow the same solubility trends as sulfates.
asked by jim 
ALGEBRA
DRAWING A DIAGRAM:THE THEATER HAS 30 ROWS OF 25 SEATS. IF 150 OF THE SEATS ARE TAKEN HOW MANY ARE EMPTY
asked by JOANN 
Math
Use the producttosum formulas to write the product as a sum or difference. sin(x+y) * cos(xy)
asked by Anonymous 
Math
1. The graph of y=2logbase5X7 is reflected in the xaxis and translated 6 units up. I got y=2logbase5X1 as a result. The answer key says y=2logbase5+13. How????
asked by Bethany 
REALLY NEED HELP
Joyce is buying a pair of jeans for $39.99. The jeans are on sale at a 20% discount and the sales tax is 7%. Write a function T(x) to represent the total cost of an item with 7% sales tax. Find the composite function (T of S)(x).Use the composition to find
asked by cierra 
Physics
A toy train leaves a station at time t=0.0 and moves with constant acceleration. If the total mass of the train is 5.5 kg and its acceleration is 9.9 m/s2. What is the total work done on the train after 1.1 s? Express your answer in kJ.
asked by Juicy 
physics
A boy in a wheelchair (total mass, 46.0kg) wins a race with a skateboarder. He has a speed of 1.33m/s at the crest of a slope 2.24m high and 13.2m long. At the bottom of the slope, his speed is 6.35m/s. If air resistance and rolling resistance can be
asked by Juicy 
History
What areas of the world do you believe have growing/ expanding populations? What areas of the world do you believe have decliing/decreasing populations? Is there a good website to get this info?
asked by Geo 
Maths
Abc with A(3,0) b(2,4) and c(0,2) is enlarge using the rule (x,y)(2x,2y)
asked by Beatrice 
History
Haiti and Cuba are relatively close to each other. What is your theory on why their population statistics are so different?
asked by Geo 
AP Physics
A 35kg child sits in a swing supported by 2 chains, each 3.7 m long. If the tension in each chain at the lowest point is 274 N find the child's speed at the lowest point. (Neglect the mass of the seat). I'm not sure what equations to use to set this up
asked by Chevy 
Math
What is the average of 12,43,37 and 40
asked by Maisha 
Chemistry
Arrange the following oxides in order of increasing acidity: As2O5, P2O5, SnO2, N2O5, BaO, and SeO3. (Use the appropriate symbol to separate substances in the list.) I got BaO
asked by Emily 
Math
Jenna says that no row or column contains products with only odd numbers. Do you agree? Explain.
asked by AlIna 
PreAlgebra
The coordinates of quadrilateral VWXY are given below. Find the coordinates of its image after a dilation with the given scale factor. V (6, 2) W (2, 4) X (3, 2) Y (3, 5) scale factor of 2
asked by Nicky 
Math
Draw a picture that shows an example of a product of two even numbers. Write the marching multiplication sentence.
asked by AlIna 
Physics
A drunken driver crashes his car into a parked car that has its brakes set. The two cars move off together (perfectly inelastic collision), with the locked wheels of the parked car leaving skid marks 6.0 m in length. If the mass of the moving car is 2130kg
asked by Juicy 
Langauge arts
Which of the following is a proper noun? ground friend Georgia*** vegatable
asked by Anonymous 
math
I'm so lost I have no idea. Please help Write the equation of the line that represents this graph. Show your work or explain how you determined the equations. graph of line going through ordered pairs (0, 300) and (450, 0)
asked by Lucy 
Computer programming
I am trying to write a program in C that would be used by a car rental company. This program finds the subtotal, tax amount(6%) and finally the total. The user enters in how many days the car was rented and how many miles were driven. The total is based on
asked by Matt 
Physics
A walker's speed, v, is proportional to the ratio of his leg length, L, and the period of the repeating motion of his legs, T, that is, v ∝ L/T. If the period is measured to be proportional to Lp, where p = 3/5, what power of L must the speed be
asked by Jen 
Trig
I need help with this application. A pier 1250 meters long extends at an angle from the shoreline. A surveyor walks to a point 1500 meters down the shoreline from the pier and measures the angle formed by the ends of the pier. It is found to be 53 degrees.
asked by Hutch 
Ela
What is a good story for the moral self help is the best help
asked by Anabelle 
Social Studies
What significance does October 1 1949 have in Chinese history? a. The Boxer Rebellion was defeated by foreign troops b. The last dynasty ended with the death of its empress c. Mao Zedong declared China "The People's Republic of China"*** d. China ended its
asked by Kaai97 
Social Studies
The Qing Dynasty produced and exchanged items such as Chinese pottery with English colonists during the 1800s in order to obtain heavily demanded what? a. silks. b. cotton. c. furs.*** d. tea. Just checking my work:) ***  My Answer Thanks, Kaai97
asked by Kaai97 
adv functions
joe is building a wooden cylindrical storage box. the box will have a volume og 6pi m^3. for design purposes, the thick wood for the top and the bottom costs $6/m^2 and the thinner wood for the sides cost $5/m^2. a)express the cost of the wood as a
asked by samm 
Social Studies
What Soviet Union leader cut ties with China after a heated discussion with Mao Zedong over Communist ideologies? a. Josef Stalin b. Vladimir Putin c. Mikail Gorbachev d. Nikita Khrushchev*** Just checking my work:) ***  My Answer Thanks, Kaai97
asked by Kaai97 
chemistry
is this the answer to B ) CH3CH2OH + 3O2 → 2CO2 + 3H2O In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During cellular respiration, sugar and ethanol are "burned" to water vapor andCO2. Write a combustion
asked by Mark 
analytical chemistry
How many grams of Ca(OH)2 can be dissolved in 550mL of a .0500 M NaOH solution. Ksp  Ca(OH)2 is 5.5 x 105
asked by TK 
analytical chemistry
150 mL of a solution contiains .00015 M NaI, .0055 M NaC, and .12 M Na3PO4. A solution of .10 M AgNo3 is slowly added. Who precipitates 1st, 2nd, and 3rd? When the last one to precipitate just begins to precipitate, what % of the other 2 anions are still
asked by TK 
analytical chemistry
At what ph will Al(OH)3 begin to preciptate from a .10 M solution of AlCl3?
asked by TK 
sas academy
find the common ratio of geometric progression ¼ ½ 1–2
asked by jabeer 
Physics
A 200 N box is pushed up an incline 10 m long and 3 m high. The average force (parallel to the plane) is 120 N. a.) How much work is done? b.) What is the change in the PE of the box? c.) What is the change in KE of the box? d.) What is the frictional
asked by Ana 
math
the square root of 23 over 3 is equal to a) square root of 3 b)3 c)9 d)12 I found no one poof these answers to be true.
asked by josh 
Physics
A body starts from rest and accelerates to a velocity of 5m/s in 20s. It then maintains this velocity for 10s and then decelerates to rest in further 10s. (a) Draw a velocity – time graph of the motion (b) Calculate the initial acceleration (iA body
asked by Mary 
bio
there are 34 students in class that measures 130 square meters. what is the density of students?
asked by leo\ 
math
find a 3 digit number less than 500 in which the 3 different digits are add up to 8.
asked by maida 
math
Lucas' last 4 test scores were 88, 95, 92 and 81. 90% or better is an A. What would he have to get on his fifth math test to pull up his grade to a 90?
asked by tina 
College Algebra
The centripetal force of an object moving around a circle varies directly with the square of the speed and inversely as the radius of the object. Suppose the force is 300 N when the speed is 15 m/s and the radius is 5m. What would the force be if the speed
asked by Gabriella 
physicsn
An Olympic turkey moving at 20.0 m/s down a 30.0° slope encounters a region of wet snow and slides 145 m before coming to a halt. What is the coefficient of friction between the turkey and the snow? The accelerations down the hill is 1.4 m/s^2.
asked by ms 
math
an airplane is flying at 350 km/h. after one hour, she notices that owing to strong winds, she is 48 km west of her intended flight path. at what angle to her intended flight path has she been flying
asked by bob larry 
maths
ok guys i have a question if i have a printer that prints 9 pages per second how much will be 500 please answer thank you! :D
asked by michael 
chemistry
Calculate the mass of oxalic acid needed to prepare 150 ml of 0.442 M C2H2O4
asked by james 
Physic
A ball of mass(M) falls from a height through a distance of 20m. Calculate its velocity if air friction is negligible.(take g=10m/s^2)
asked by Tony Tonero 
Algebra
I can not figure out how to set this problem up. I know the answer is 200 mi, 220 mi. Two different routes between two cities differ by 20 miles. Bill and Lou made the trip between the cities in exactly the same time. If one traveled the shorter route at
asked by Hutch 
Geography
Most geogrphers consider US to be in Stage 4 of DTM What countries on this chart above would be in the same group as the USA? Belize, Cuba, Greece, Swaziland, Switzerland, VIetnam, South Korea, Niger, Uruguay, Haiti Greece?
asked by Geo 
algebra
The number of bacteria in a certain population increases according to a continuous growth model, with a growth rate parameter of 25% per hour. An initial sample is obtained from this population, and after six hours, the sample has grown to 7081 bacteria.
asked by Pat 
Geography
Very few countries are in stage 5 of DTM. Will most countries of the world be in Stage 5 at some point
asked by Geo 
Physics
A compact car of mass 915 kg has an overall motor efficiency of 16.0%. (a) If burning one gallon of gasoline supplies 1.34 108 J of energy, find the amount of gasoline used in accelerating the car from rest to 55.0 mi/h. Here you may ignore the effects of
asked by Steven 
Ed Tech. HELP PLZ ASAP
1.How can you identify the values portrayed in a story? A.by reading old versions B.by reading descriptions C.by focusing on what the character**** thinks,say,and do D.by focusing on the setting of the story 4.Which of the following is true about hidden
asked by regan 
English
1. The monster is scary. 2. The monster is scaring. 3. He is scared to meet the guy. ================== Are they all grammatical? Is #1 the same as #2? Which one is popular between 1 and 2?
asked by rfvv 
chemistry
A 0.8612 g sample of a mixture consisting of NaBr, NaI, and NaNO3 was analyzed by adding AgNO3 to precipitate the Br¡V and I¡V, yielding a 1.0186 g mixture of AgBr and AgI. The precipitate was then heated in a stream of Cl2, converting it to 0.7125 g of
asked by yung 
Physics
If you were on the moon and fired a projectile, the maximum range you could achieve would occur with an angle of (in degrees): **So I'm guessing it would be at angle 4550?**
asked by Ana 
maths 3 advanced
an experimental satelite is placed into a polar ellipical orbit above the earth. both its apogee and perigee are above the equator and the earths centre is the focus of the ellipical orbit. the earths radius is taken ar 6000km. the furthest point of the
asked by max 
Harrisburg Area Community College
find the equation of a rational function that passes through (0,1) and (2,1), has the x axis as a horizontal asymptote, and has two vertical asymptotes at x=3 and x=3
asked by Alanna 
global
where do lines of longitude intersect on the globe?
asked by anna 
Algebra
I need help with this problem. A class of 32 students was made up of people who were all 18, 19, and 20 year olds. The average of their ages was 18.5. How many of each age were in the class if the number of 18 year old was six more than the combined number
asked by Loretta 
chemistry
Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O.
asked by lee 
Math
Pencils are sold in packages of 5.explain why you need 6 packages in order to have enough for 27 students.
asked by Anonymous 
math
1.352 pounds is what fraction of a short ton? A. 169/250 B.77/100 C. 2/4 D. 140/223
asked by joan 
Chemistry
A 4.30g sample of solid BaCl2 2H2O was heated such that the water turned to steam and was driven off.Assuming ideal behavior, what volume would that steam occupy at 1.00atm and 373K?
asked by Anonymous 
phyics
a 1350 g projectile is launched with a force of 150N. the length f the firing arm is 1.25 m . determine the velocity
asked by kim 
Amadlelo aluhlaza SS
I Lungelo would like to know tat are there any chances for a person who is doing Accounting.Business study.Economics and Maths Literacy to become a paramedic?
asked by Lungelo 
chemistry
How many grams of Ca(OH)2 can be dissolved in 550mL of a .0500 M NaOH solution. Ksp  Ca(OH)2 is 5.5 x 105
asked by lisa 
chemistry
150 mL of a solution contiains .00015 M NaI, .0055 M NaC, and .12 M Na3PO4. A solution of .10 M AgNo3 is slowly added. Who precipitates 1st, 2nd, and 3rd? When the last one to precipitate just begins to precipitate, what % of the other 2 anions are still
asked by lisa 
chemistry
At what ph will Al(OH)3 begin to precipitate from a .10 M solution of AlCl3?
asked by lisa 
Algebreic Expressions
One third as many books Earns $13 per hour
asked by Gaeil 
Algebra
The Smiths invested $14,000, part at 3% simple interest and the rest at 4% simple interest for a period of one year. if the total interest earned was $460, how much was invested at each rate?
asked by Lucas 
Science
Perhaps you mean Hadean, when the planets of the solar system were just forming out of dust and particles. There were no solid rocks or anything yet, so you could hardly call it geologic. The thing about gravity is that if two specks of dust are drifting
asked by Music Note 
Calculus
A baseball player hits a baseball from home base towards second base with a velocity of 90 feet/second. At that same moment, he runs from home base towards first base at 30 feet/second. Find the rate of change of the distance between him and the baseball
asked by Nick 
Catching fire
What does President Snow mean when he says, “…you have provided a spark which left unattended may grow into an inferno…”?
asked by Cearra 
English
1. Tomorrow, we're going to go to hike. 2. Tomorrow, we're going to go hiking. =================== Which one is grammatical? Are both grammatical? Then, what is the differencein meaning?
asked by rfvv 
Science
you started to run at 10km/h when you left your house and you arrived at school .5 hours later. assuming that your average acceleration was 30 /h2, how fast were you running when you arrived
asked by Parker 
math
larry has a board that is 4 yards long. How much needs to be sawn off to make the board 2 feet 8 inches long? A) 1 ft 4 in B)8 ft 6 in C) 2 ft 6 in D/9ft 4 in
asked by jason 
physics
A falling stone accelerates at a constant rate of 10ms^2. It is dropped from rest down a deep well and 3s later a splash is heard as it hits the water below.(1) How fast will it be moving as it hits the water? (2)What will be its average speed over the
asked by Lisa 
language arts
3.)Which principal part of the verb to know appears in sentence 1? The Sentence:Everything I know about gardening i learned from my good friend sandy. A.)Past Participle B.)Present Participle C.)Past D.)Present D?
asked by Shalee ^~^ 
Calculus
The formula for the amount (A) in a savings account compounded n times per year for t years at an annual interest rate r, with initial deposit P, is given by A=P(1+r/n)^nt. Evaluate this formula as the number of compoundings per year becomes infinite. (the
asked by Nick 
Eng
How do you write a definitional/logical persuasive essay for grade 11/12? What should be in each paragraph?
asked by Annoym 
Geography
What country has similar statistics to Sweden
asked by Geo 
math
Lisa Has 5 blue buttons. She has a 3 times as many red buttons. How many buttons does she have? A) 15 B) 20 C) 25 D) 30
asked by toting 
math
Danika has yellow 10 buttons.She has 6 times as many black buttons. How many buttons does she have?
asked by jason 
Physics
A quarterback throws a football toward a receiver with an initial speed of 22 m/s at an angle of 30° above the horizontal. At that instant the receiver is 23.6 m from the quarterback. With what constant speed should the receiver run in order to catch the
asked by Jorge 
Geography
What are the Latin American countries? I want to make sure I didn't label too many or missing any of the countries on my paper Mexico, Guatemala, Belize, El Salvador, Honduras, Nicaragua, Costa Rica, Panama, Ecuador, Colombia, Veneziela, Guyana, Suriname,
asked by Geo 
Math
The area of a rectangle mirror is 11 11/16 feet. The width is 2 3/4 feet. If there is a 5 foot tall space on the wall to hang the mirror will it fit explain.
asked by Kylen 
Algebra
Solve for x. 4 (x  b) = x A. b = 4/3x B. b = 3/4x C. x = 4/3b D. x = 3/4b Is the answer C?
asked by Bruh 
History
Can someone please check my history questions? 1) Republicans were responsible for the passage of the Thirteenth Amendment, which effectively nullified the Threefifths Compromise. Why was this an issue of concern for Republicans? A) because it meant that
asked by Abby 
11 Grade MathBased Physics
Could someone check these practice test questions over for me? I'm not good at physics at all, so I would love an explanation. 1. A projectile is shot an angle into the air. Neglecting air resistance... 1a. It's horizontal acceleration is a) 9.8 m/s^2 b)
asked by Ana 
Chemistry
Iodine, I2, reacts with aqueous thiosulfate ion in neutral solution according to the balanced equation I2(aq)+2S2O2−3(aq)→S4O2−6(aq)+2I−(aq). How many grams of I2 are present in a solution if 33.00 mL of 0.165 M Na2S2O3 solution is needed to
asked by Mary 
South Carolina history.
How do I paraphrase The 1776 Constitution of South Carolina? From its first paragraph? I don't understand what this means.
asked by Help me 
science
what type of crime scene is most likely to contain toolmarks
asked by n 
physics
from circuit R1 6680 ohm R2 680 ohm R3 330 ohm R4 180 ohm find the total resistance
asked by ali 
science
Put the following events in order as an impression is processed by crime scene investigators Make a cast of impression set up crime scene tape photograph Take measurements
asked by n 
Algebra
The sum of onefourth a number and 8 is the same as one less than the number. What is the number?
asked by Antonio 
math
evaluate the expression 3(y+1)for y=2 a.6 b.9 c.7 d.8
asked by mouse 
Math
Golds gym charges $150 to sign up and $10 per month. Fitness express charges not initial fee but charges $25 per month. When will the cost be the same? Show work please!!
asked by Michelle 
Math
If a car decreased by 10 percent and is now worth $14,000. What was the original price of the car
asked by Joseph 
Social Studies Check my answers!
1. Which of the following satements would describe the significance of the battle of kettle creek? A.weapons and horses were taken from the British. B. the back country of georgia remained under patriot control C.the morale of the georgia milita was lifted
asked by Amber 
physics
how is a stone tied on an elastic string balanced when in air and water ?
asked by Carron 
math
Two runners are competing in a race. One runner averages a pace of 7 minutes per mile and finishes the race in 28 minutes. The second runner finishes the race in 30 minutes. Which of the following is the pace of the second runner? A. 7 minutes, 15 seconds
asked by alixie 
National school
A dilute solution of sulfuric acid is added to 15g of copper and iron mixture. a) write the balanced equation for the occuring reaction. b) the volume of H2 evolved at standard conditions is 4.48L, what is the mass of each of the metals constituting the
asked by Maha 
Behavioral Statistics
Let's say that the standardized test had 100 possible points. If we wanted to identify the top 25%, why not just select those with raw scores above 75? Why do we have to standardize the scores?
asked by slomomo 
science
a skater with a mass of 65kg,reaches the bottom of a ramp ,2.5 metres high ,going at 27km.h1. calculate his kinetic energy as he reaches the ramp calculate how fast he is going by the time he reaches the top of the ramp
asked by zinhle 
Physics, science
a car travels 45 km in 1 hour. in each of the next 2 hours, it travels 78 km. what is the average speed of the car?
asked by adriana 
Math
If the value of a car decreased by 10 percent and is now worth $ 21,000. What was the original cost of the car?
asked by Joseph 
language arts
Which of the following topics would be most appropriate for an autobiography narrative? A) Your explanation of how to train for running long distances B) Your account of the time you won first place at a track me C)Your summary of an article about a girl
asked by Shalee ^~^ 
English
Someone please help me... I just need a wedsite that has images ~Select a favorite website of yours that has illustrations of some type. (Ads do not count.) Provide the web address. Interpret and discuss the illustrator's purpose relative to the specific
asked by Abby 
Science college
An elements X having mass and atomic number A and Z react with neutron to give gamma ray and P with mass and atomic number 1.what is X?
asked by Bauras 
MatH
1.solve the inqulitey m71 3.p+5
asked by AABBCC 
Accounting
At the beginning of the year, Keller Company's liabilities equal $75,000. During the year, assets increase by $60,000, and at yearend assets equal $190,000. Liabilities decrease $16,000 during the year. What are the beginning and ending amounts of equity?
asked by TA 
science
how many atoms of S are there in 3 (NH4)2 SO4
asked by Colin 
Chemistry
I still don't get this problem! Toxic chemicals in drinking water usually are reported and a safety level specified in units of parts per million (ppm) by mass. What is the molar concentration of arsenic in a water sample that has 1ppm arsenic (As)? My
asked by Tiffany 
English
14. The soldiers are issued (infrared) goggles to help them see in the dark. A. outside visible spectrum B. creating light by radiating heat C. emitting light by creating water vapor D. producing light by adding electrons to a glowing material I'm stuck
asked by SkatingDJ