Questions Asked on
November 15, 2016

math
A 19 foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 13 feet from the base of the building. How high up the wall does the ladder reach?
asked by shirley 
Algebra
which equation represents the relationship shown in the table below? x  0  1  2  3  __________________ y  3  1  1  3  a.) y = x  3 b.) y = x  3 c.) y = 2x  3 d.) y = 2x + 3
asked by Matt 
math
A group of people were asked if they had run a red light in the last year. 433 responded "yes", and 424 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year.
asked by laura 
MATH 123
A wooden artifact from an ancient tomb contains 55% of the carbon14 that is present in living trees. How long ago was the artifact made? (The halflife of carbon14 is 5730 years. Round your answer to the nearest whole number.)
asked by NICK SMITH 
Social Studies
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 Anthony 
math
The cost c (in dollars) for the fuel and maintenance of a gocart is given by c=10x+1200 c=10x+1200 , where x is the number of rides. It costs $40 per ride. How many rides does it take to break even?
asked by Nicki 
Chemistry
Oxalic acid, found in the leaves of rhubarb and other plants, is a diprotic acid. H2C2O4 + H2O ↔ H3O+ + HC2O4 Ka1= ? HC2O4 + H2O ↔ H3O+ + C2O42 Ka2 = ? An aqueous solution that is 1.05 M H2C2O4 has pH = 0.67. The free oxalate ion concentration in
asked by Ashley 
Math
Clark's Country Pet Resort is fencing a new play area for dogs. The manager has purchased 186 yd of fence to enclose a rectangular pen. The area of the pen must be 2156 yds^2. What are the dimensions of the pen? Length is how many yards? Width is how
asked by Jason 
English
1.Identify the underline phrase in the sentences: "Accordong to the letter", the wedding is June 25th. propositional**** participial gerund infinitive 2.Mikayla's homeroom teacher,"Mr.Jones", is very proud of her. participial gerund appositive****
asked by GummyBears18 
Stats
You draw two marbles at random from a jar that has 20 red marbles and 30 black marbles without replacement. What is the probability that both marbles are red?
asked by Anastasia 
chemistry
Identify the element that has a ground state electronic configuration of [Ar]4s23d104p 4
asked by Savannah 
maths
Two vectors P and Q of magnitudes 5 and 3 units respectively are inclined at an angle of 30 to each other.calculate the component of the resultant in the direction of Q.
asked by joe 
Algebra2
is y=1/4x^0.5 a power function. Explain why or why not.
asked by Steve 
English please help
5. The Statue of Liberty has stood FOR MORE THAN 100 YEARS in New York Harbor. adverb phrase** adjective appositive phrase adverb 6. Frédéric Bartholdi, THE SCULPOTOR, came up with the concept of a “mighty woman with a torch” as he sailed into the
asked by Please check answers 
math. PLEASE HELP.
Question: If A= 29 degrees and a= 4.6, find c. There is a diagram shown in the textbook. b is adjacent, c is the hypotenuse, and a is opposite. I know I'm suppose to use SOH CAH TOA, and i tried using tan, but Im not getting the correct answer. i looked in
asked by Eunice 
maths
write 249cm to the nearest metre
asked by Anonymous 
math
the sides of a square are increased by a scale factor of 6. the perimeter of the smaller square is 10 ft . what is the perimeter of the larger square. a 2.5 ft b 10 ft c 60 ft d 120 ft
asked by please help 
math
Which ratio forms a proportion with 18/30? (a)20/35 (b)50/90 (c)36/48 (d)60/100 I think the answer is C, am I correct?
asked by helpasap 
Algebra2
Which correctly describes the roots of the following cubic equation? x^35x^2+3x+9=0
asked by Steve 
Chemistry
Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to
asked by Jimmy 
Chemistry
Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to
asked by Jimmy 
Chemistry
Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to
asked by Jimmy 
Math
Next three terms in sequence 1,3,9,27,81,....
asked by Hunter 
Algebra2
Determine whether the function represents exponential growth or decay. Then find the yintercept. y=4(5/6)^x
asked by Steve 
math
What is the probability of being dealt 3 tens and 2 kings from a deck of cards?
asked by deanna 
math
A, b, c can complete a work separately in 24, 36, and 48 days respectively. They started working together but C left after 4 days of start and A left 3 days before the completion of the work. In how many days will the work be completed ?
asked by aneesh 
history
1. Which statement best explains the significance of the signing of the Mayflower Compact? * 5 points A)The colonists swore to survive together or die in North America. B)The colonists agreed to create their own government and to obey its rules. C)The
asked by connexus 
math
Alice is working 2 jobs to save up money for a trip. She works at the ice cream shop for $9 an hour and babysitting for $12 an hour. She needs to earn at least $200 per week and can only work 20 hours per week. Write a system of inequalities to model the
asked by amy 
Music
2.What would be the construction of a major scale just starting on note G? A G, A, B(flat), C, D, E, F#, G B G, A, B, C, D, E, F#, G C G, A, B(flat), C, D, E, F, G D G, a, B, C, D, E, F, G
asked by Sage 
chemistry
what are the isomers of chlorodibromobenzene
asked by Maria 
Stats
One of the questions on a survey of 1,000 adults asked if today's children will be better off than their parents (Rasmussen Reports website October 26, 2012). Representative data are shown in the file ChildOutlook. A response of Yes indicates that the
asked by HANNAH TURNER 
math
Which of the following statements is true about the level of significance alpha?
asked by kim 
Arithmetic
a folding chair regularly sells for $29.50. how much money is saved if the chair is bought at a 20% discount?
asked by chris 
Psychology
1. Describe the structure of a neuron and explain the function of each of its major parts. I dont want anyone to answer FOR me, but I really need help on where to start. If you could help, I would greatly appreciate it.
asked by Ava 
Chemistry
Which reaction below represents the second ionization of Lr?
asked by Savannah 
Calc
Find the critical numbers of the functions. f(0) = 2sec0 +tan0 on the interval [0,2pi]
asked by Eric 
PHYSICS
A 6.53kg block initially at rest is pulled to the right along a horizontal surface by a constant force of 125 N applied at an angle θ above the horizontal. The coefficient of kinetic friction between the block and the horizontal surface is 0.150. At what
asked by ROMAN 
Mathe: NEEDHELP!
Drinking 6 fluid ounces of milk provides 202.5 milligrams of calcium. How many fluid ounces of milk are required to provide 52.5 milligrams of calcium? Round to the nearest tenth. PLZ HELP!
asked by Agal 
Chemistry
Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The equation shows the net reaction for one process that forms potassium permanganate 2MnO2+2KOH+O2=2KMnO4+H2 What is the maximum
asked by Marissa 
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 
Physics
You exert a force of 26 N on the head of a thumbtack. the head of the thumbtack has a radius of 7 mm.? What is the pressure on your thumb?  atm
asked by Katelyn 
Trigonometry
A sine function has an amplitude of 4/7, period of 2pi, horizontal shift of 3pi, and vertical shift of 1. What is the yvalue of the positive function at x= pi/2?
asked by Renae Smith 
Maths
In A Right Angled Triangle,one Of The Acute Angles Is 20degree Greater Than The Other. Find The Angles Of The Triangle.
asked by Blaze 
geometry
Each of the twelve edges of a cube of edge 'a' is tangent to a sphere. Find the volume of that portion of the cube which lies outside the sphere.
asked by defensivepoison 
solid geometry
A cone circumscribed a sphere and has its slant height equal to the diameter of its base. Show that the volume of the cone is 9/4 the volume of the sphere.
asked by defensivepoison 
History
Why was the presidency of Gorge Washington considered to be so significant? A) his actions would define the role of the President** B) his actions would set precedents for all future presidents C) his actions would determine the need for a president D) his
asked by TokyoGhoul 
Government
How many terms can a president serve according to the Constitution? a. one term b. two terms*** c. three terms d. unlimited terms
asked by Alice Keign 
Science
Word that means "flat like a plate "(flat land that Is higher than surrounding land"
asked by Jesse 
Math
Holly spent one third of her birthday money on new clothes she spent 3/10 of the clothes money on socks what fraction of her birthday money did she spend on socks?
asked by Miyah 
math
A school district has 2 teaching positions to fill and there are 8 applicants to choose from. How many different possibilities are there?
asked by deanna 
Science
Help pzzzzzz Sound in an empty room can be very loud,with many echoes.Describe three ways to make the room quieter?
asked by Nick 
Chemistry
This compound has a molecular mass of 1268.06g/mol, what is the molecular formula for this compound?
asked by Lily 
geometry
Find the measure of each exterior angle of a regular polygon whose central angle measures 120 degrees.
asked by Mark 
chemistry
Enthalpy of combustion of c(graphite)is _393.3 KJ mol 1then for producing 39.3 KJ of heat the amount of carbon required is
asked by renu 
Maths
A, B, C are in a contest. 400 officers are voting to support them and each of them can only cast one vote. If the ballot shows a result ratio of 2:3 for A and B candidates, 9:5 for B and C candidates, how many tickets had each of A, B and C get? A
asked by Vinnie 
Science Ms. sue help
what is the function of a cell wall A) to Protect and support the cell B) to preform different functions in each cell C) to prevent water from passing through the cell D) to prevent oxygen from entering the cell. Help!!!!
asked by valerie 
Maths
What are the two consecutive numbers that have digit sums of 36 and 1
asked by Maddie. 
math
suppose that $3500 is borrowed for three years at an interest rate of 4% per year. compounded continuously. find the amount owed, assuming no payments are made till the end. Round to the nearest cent.
asked by . 
chemistry
nitrogen and hydrogen react to form ammonia. N2+3H2=2NH3. 12 dm3 of hydrogen reacted with excess nitrogen to form 2 dm3 of ammonia. what is the percentage yield of ammonia at room temperature and pressure
asked by haya 
algebra
Express in mathematics form the sum of four times a number and fourteen times its resiprcol is 15
asked by chetan 
physics
Acceleration of a Mass in a Pulley System Block 1 of mass m1 slides on a frictionless plane inclined at angle θ with respect to the horizontal. One end of a massless inextensible string is attached to block 1. The string is wound around a frictionless
asked by simon 
Chemistry
Elemental analysis of a compound, once used as a pesticide, was found to be 74.2% carbon, 8.64% hydrogen, and 17.2% nitrogen. This compound has a molecular mass of 162.23g/mol, what is the molecular formula for this compound?
asked by Joe 
math
Which proportion has cross products of 5 x 24 and 8 x 15? (a)5/8 = 15/24 (b)5/25 = 8/15 (c)8/24 = 15/5 (d)15/8 = 5/24 I think the answer is A. Am I correct?
asked by helpasap 
English
1.Read the following sentences from "The Destructors." The new recruit had been with the gang since the beginning of the summer holidays, and there were possibilities about his brooding silence that all recognized. He never wasted a word even to tell his
asked by GummyBears18 
physics
A car brakes at constant acceleration from a velocity 226m/s to 12.5m/s over a distance of 105m.find; a)How much time elapses during this time interval. b)what is the acceleration. c)if the car continued to be braked at same constant acceleration how much
asked by claire 
Physics
A car is proceeding at a speed of 14.0 m/s when it collides with a stationary car in front. During the collision, the fist car moves a distance of 0.350 m as it comes to a stop. The driver is wearing her seat belt, so she remains in her seat during the
asked by Nick 
Algebra
133 is the product of 7 and gails savings. Use the variable g to represent gails savings
asked by Anonymous 
Math Statistics
N= 80 p = 0.7 x = 62? A) Exact: 0.0335; Approximate: 0.0334 B) Exact: 0.0343; Approximate 0.0334 C) Exact: 0.0343; Approximate: 0.0350 D) Exact: 0.0343; Approximate: 0.0342 Which one is the correct answer and can you show work please?
asked by Anonymous 
Math
Jason has 75 feet wallpaper border.He wants to put up a wallpaper border around his rectangular bedroom that measures 12 feet by 14 feet. He multiplies 12×14=168 to get an exact answer of how much border he needs.He concludes that he does not have enough
asked by Amya 
math
A spherical helium balloon has a diameter of 30 cm. How much helium is needed to fill the balloon, in cubic centimeters? Round your answer to the nearest centimeter
asked by emerson 
English
Which of the following is not an object of satire in "a contribution to the statistics'? A. The self importance of social studies B. The corruption of the powerful C. Thee pride of mankind D. The delusions of common people
asked by Sami 
Chemistry
Use the calculation of specific heat for your metal as an example and determine the effect on specific heat if the sample temperature is changed. Does this small loss in heat significantly (>5%) affect your value for the specific heat of the metal? How
asked by will 
physics
What is the force constant of a spring which is stretched 2mm by a force of 4N
asked by amie 
university 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 lily 
Technology
A boy who weighs 30 kilograms sits on one end of a seesaw. On the other end there is a girl who weighs 20 kilograms. The girl is 1.5 metres from the fulcrum. How far from the fulcrum must be the boy sit in order to balance the seesaw? How far away must the
asked by Patricia 
American Government
1) The Executive Office of the president is commonly called "the president's right arm" because it hosts agencies composed of which of the following? A) congressional leaders from the majority party B) influential members of various political parties C)
asked by Juliet 
LA
In "All Together Now," why does Barbara Jordan most likely mention the conflict in Bosnia? A.It shows that people of different ethnic backgrounds can live in peace. B.It shows that improvements in race relations are still necessary despite past progress.
asked by Check please 
Geometry
Find the orthocenter of triangle ABC. A (3,5) B (9,5) C (5,3) I think it is (9, 5).
asked by Kaashif 
Math
Louisa has many marbles in a bag. When she counted them by twos, threes, fours, fives, sizes, sevens, eights, nines and tens there was always one left over. What was the smallest number of marbles Louisa could have had in her bag?
asked by Alexander 
History
Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the
asked by Connor 
Table of Values
Make a table of values for y=3. Then, map it on a graph.
asked by Kate_Mack_Son 
Statistics
A random sample of size n is to be drawn from a population with a mean = 500 and sd = 100. What sample size would be necessary to ensure a standard error of 25? Sample sizes are whole numbers.
asked by Karen 
3rd grade math
Girl has 64 oz juice for a party. She has 300 more ounces apple juice than grape juice. How many ounces of each type of juice does girl have? The answe is 170oz grape juice 470 oz Apple juice How do you get that answer? Thank you
asked by Yteria 
Algebra
It says "there are x students trying out for a solo in a chorus concert. Only 6 will be chosen. How many students will not be chosen?"
asked by E 
math
Sally at age 18 invests $3,000 in the bank account. The account rate goes up 5% annually. How much will be in the account, by the time Sally is 25?
asked by Anonymous 
Math Statistics
A random sample of size n is to be drawn from a population with a mean = 500 and sd = 100. What sample size would be necessary to ensure a standard error of 25? Sample sizes are whole numbers.
asked by Anonymous 
Math
To make a jacket it takes 1 7/8 yards of material and the material cost $9.00 a yard. What does it cost to make the jacket?
asked by Trent 
Government
Which scenario best illustrates how the power to make treaties in the united states constitution provides for checks and balances among the three branches of government ? A. the president must sign an executive agreement without the senate, but must have
asked by Alice Keign 
Algebra
Solve. x^2xy+3y^2=15, xy=2 Thank you
asked by Matt 
Physics
A mass m at the end of a spring oscillates with a frequency of 0.83 Hz . When an additional 770 g mass is added to m, the frequency is 0.65 Hz . Part A What is the value of m? Express your answer to two significant figures and include the appropriate
asked by Ashley 
English
what is intermittent
asked by gracelyn 
Chemistry
Are the units for frequency Nu or Hz????????!
asked by Charli 
Science
Which of the following may occur during metamorphism? A. The rock becomes less compact. B. Certain minerals may recrystallize. C. Crystals may grow smaller. D. The rock becomes less dense.
asked by Aralyn 
English
I need to compose an original short story about a quest or dream that a young person sets out to fulfill and the narrator has to be older and wiser than he or she was at the time of the quest. Any ideas?
asked by Justine 
Algebra
9v  5 = 95 This has me stumped. Ms sue help plz?
asked by Ms. ( ͡° ͜ʖ ͡°) 
Chemistry
How many milliliters of water at 25.0°C with a density of 0.997 g/mL must be mixed with 165 mL of coffee at 91.0°C so that the resulting combination will have a temperature of 62.1°C? Assume that coffee and water have the same density and the same
asked by Andrew 
French
Are these right? This is supposed to be points of info on French culture in Canada. •Until the 1960s: Family lives of French Canadians heavily influenced by the Roman Catholic Church. •Large families •TODAY: •Average couple has only two children
asked by Jules 
Physics
a transverse wave on a string has a period of 0.1 s and an amplitude of 1 cm. What is the maximum transverse acceleration at any point along the string?
asked by Mona 
Social studies
The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? This is only one question and I am from connexus 8th grade if someone could give me the answers to the whole
asked by Anonymouse 
Algebra
Suppose that you work part time as a sales representative at a car dealership. You earn a base salary of $125 per week plus a 18% commission on all sales that you make. Your best friend has exactly the same job at another car dealership but earning a base
asked by Kat 
Biology
What are 2 advantages for binary fission in bacteria?
asked by Ryan 
Chemistry
What is Enthalpy?
asked by Anonymous 
Chemistry
Give a simple test that would allow you to distinguis between the following pairs of anions. Tell what you would do and what you should observe for each anion. A. CO3^2 and SO4^2 B. Cl and SO4 C. CO3^2 and Cl Now, for each cation A. B^3+ and Ca2+ B.
asked by J 
Math
When 25 is added to a number and the result is halved, the answer is 3 times the original number. If let the number is X, make an equation to find X.
asked by Alelia 
Social studies connexus 8th grade
The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? I could use some help here can anyone help me give me an answer or a link of some sort? Thanks
asked by JJ 
Math
What is the smallest 5 digit even number that can be formed with the digit 091 and 6
asked by Richelle 
civics
Research how your local government works. Briefly explain the process to pass a law (usually called an ordinance or code) in your city or county. To introduce the idea in my city or county, first I would
asked by kat 
maths need help word problem
A number is made up of two digits whose sum is 9. If this number is now divided into the number made up of the same digits but in reverse order the result is sixfifths. Find the number? Step plz
asked by help 
Math check
2. 184x210 round 200x200 = 40,000 3. 77x412 ) 80x400=32,000
asked by E 
science
an experiment discovered that a particular material was a poor conductor of electricityA. conductor B. insulator C. switch D. resistor
asked by karami 
geometry
Find the measure of each interior angle of a regular polygon whose central angle measures 60 degrees.
asked by Mark 
Math help
Laura family is going on a vacation they will drive 4,180 miles over the next two weeks about how many miles will they drive an average each week ? Plz help
asked by E aka essence Forbes 
Math
Simple interest to the nearest cent for$4,010 at 5.2 Percent for 4 years
asked by Joli Massey 
math
Patrick purchased 12 books. He needed 4 books for each of his projects at school. How many projects did he have?
asked by Markeyvion 
College Algebra
If the graft y =x^3 is shifted 4 units to the left and 8 units up and is stretched by a factor of 0.75 find the new function
asked by Roscoe 
math
tan75/2 ka answer hai158.3 1/2
asked by yash kumar 
pre calc
Sketch the graph of the function f(x) = (x+4)3(x+1)(x−2)2(x−5)/ (x+3)2(x+1)(x−3)
asked by Anonymous 
Physics
In what two positions will a converging lens form images of a luminous object on a screen located 40.0cm from the object?
asked by Anonymous 
English 12 ..
Is anybody Currently attending to ONLINE connections Academy and taking ENGLISH 12 ? .
asked by chula 
Maths
There are 30 pieces of 4 different colours but same size balls in a bag. Asmo is asked to take out balls from the bag with closed eyes. To guarantee the balls taken are not less than 5 same colour balls, at least how many balls should be taken out from the
asked by vault tec 
Chemisty
You started the conventional synthesis with 0.015 mole of salicylic acid. If the reaction worked perfectly, how many moles of aspirin would you make?
asked by Quan 
Math
A MAN is now 3 times as old as his son. In 10 years time, the sum of their ages will be 76. How old the son.
asked by Kekeh 
Math
Indira predicts that the actual difference of 19  7.82 will be greater than the estimate of 19  8 = 11. Indira correct ? Explain how Indira might have arrived at that prediction without subtracting the actual numbers.
asked by Bob 
Calculus
A rectangular swimming pool is 8 m wide and 20 m long. Its bottom is a sloping plane, the depth increasing from 1 m at the shallow end to 3 m at the deep end. Water is draining out of the pool at a rate of 1 m3/min. How fast is the surface of the water
asked by Po 
math
2 cup of flour make 8 biscuits how many cup of flour do he need to make 30 biscuits
asked by layla 
math
The length of a rectangular garden is two less than thrice its width. How long is the garden if the area is 65m²? Please help
asked by Anonymous 
wisdom'
jack ate a mango
asked by nikhil 
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!!! 
Math
Anjalina earns 5% commission on all electronics she sells at electric world .on Monday she sold a television for $1130 and DVD that cost $325 .what was the total she earned in commission
asked by Amy 
Livingston Elementary school math3rd Grade
Patrick purchased 12 books. He needed 4 books for each of his projects at school. How many projects did he have?
asked by Markeyvion 
spanish
The years from 1810 to 1825 were difficult for who because of the territorial losses?
asked by Anonymous 
Math
If the sides of a disheveled triangle is 9cm, 9cm and 4cm, find the height on the shortest side.
asked by Dian 
algebra
Give an example of a function, f(x), with a domain of (0,5] and a range of [0,∞). I've came up with the following. Is there a way to change it to limit domain to the (0,5]? (1/x) + ((1/x)  5))
asked by dawn 
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 
Algebra
Rowena is now half as her mother. 8 years ago, she was 1/3 as old. Find their ages. So is the half 1/2x or x/2?
asked by Far 
Math
1(2)^2*(1)^3=
asked by Dona 
physics
A body is in equilibrum when three forces act on it.Two of the forces are F1 of magnitude 8Newtons acting due east and F2 which is 5Newtons acting 060. find the magnitude and direction of the third force.
asked by joe 
Algebra
Working together, a man and woman could complete a job in 6 days. A man workingcqlone could do it in 5 days less than a woman could. In how much time would each other do the job alone?
asked by Jyscah 
Math
equivalent expressions that can be used to find the final price of an item costing g dollars that is on sale for 15% off and charged 7% sales tax.?
asked by Anthony 
Math
Find formula of 11, 31, 91, 271, ...
asked by Wina 
Building services
Principles of heat: How many kilograms of water can be evaporated at 100 degrees Celsius by the combustion of 470 litres of fuel oil whose heat of combustion is 37 MJ/Litre
asked by David 
Microeconomics
LTC=2q2q^2+q^3 Demand p=100q Determine the long run equilibrium Price Representative firm's output(q) Industry output q and number of firm's in the industry
asked by Daniel 
math
Which ratios form a proportion? (a)4/9, 12/25 (b)3/7, 18/42 (c)5/8, 15/25 (d)5/11,20/45 I think the answer is B. am I correct?
asked by helpasap 
World history
How were Native Americans affected by the strategies used by the federal government during western expansion? I need at least three pls. Could one be killing the indians resource(buffalo)
asked by Emma 
Math grade 6, Fractions
Daniel gave 4/5 of his stickers to perry.Perry's collection of stickers increased to 64.If Perry had 28 stickers at first,how many stickers had Daniel at first?
asked by Peachie 
Math grade 6, Fractions
Jenny and Phillip had $360 altogether.After Philip had given Jenny 2/5 of his money, Jenny had the same amount of money as Philip.How much money did Philip have at first?
asked by Peachie 
english
Paraphrasing
asked by Jyscah 
World geography
Where can you find EL captain and what is it known for
asked by Favour 
Math
Kate uses a copy machine to enlarge her rectangular design that is 6 inches wide and 8 inches long. The new width is 10 inches long. What is the new length. I got some weird number like 13.333. I multiplied 8 times 10 and divided 80 by 6.
asked by Stephanie 
Geometry
Find the orthocenter of triangle ABC. A (3,5) B (9,5) C (5,3) I think it is (9, 5).
asked by Kaashif 
Calculus
Find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. f(x) = 4√x [4, 9]
asked by Eric 
maths
Suppose that the demand function for a good is qD(p) = 8000/((p^2) + 1) where q is the quantity and p is the price in dollars. If the price is decreased from 9 to 8.5, what is the approximate increase in the quantity sold?
asked by franz 
Math
Two chemicals,A and B are combined in the ratio 5:11 by volume to form another solution X. A second solution Y is formed by combining chemicals, A,B and C in the ratio 2:3:15 by volume. Find the volume of chemical A in 400 litres of solution X and
asked by Didin 
Math
Lulu buys a dess for $67 and a hat $35 and shoes for $49 how much did she spend?
asked by Slim 
Chemistry
When 20 grams of calcium carbonate decomposes, how many grams of calcium oxide are produced?
asked by sanjeev 
Chemistry
Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The equation shows the net reaction for one process that forms potassium permanganate 2MnO2+2KOH+O2=2KMnO4+H2 Explain why the oxygen
asked by Marissa 
math
it takes 3/4 of an hour for an automated sprinkler to cover 2/7 of a lawn. after an hour has passed, what fraction of the lawn has been covered?
asked by pat 
math
At a zoo the ratio of elephant to hippos is 1:2so for every elephant there are 2 hippos if there were3 elephant at the zoo how many hippos would there be
asked by Favour 
algebra  please help
Give an example of a function, f(x), with a domain of (0,5] and a range of [0,∞). I've came up with the following. Is this right or do I need to change something? (1/x) + ((1/x)  5))
asked by melissa 
Physics
Robert constructs the apparatus shown and slides a block down a slope that is without friction until the block reaches the section, L, of length 1.85 m, which begins at height h2 = 2.0 m on a ramp of angle 30.0°. In that section, the coefficient of
asked by Alexis 
Chemistry
A precipitation reaction takes place when a water solution of potassium phosphate, K3PO4, is added to a water solution of cobalt (II) chloride, CoCl2 Write a balanced equation for this reaction
asked by Marissa 
math
By using 12 match stic How many rectangle can you make which is the longest one write the measurement
asked by hareesh 
maths
f(x)=x^2+3x+1,g(x)=2x3, find fog and gog
asked by Monika 
Chemistry
When coal is burned, the sulfur it contains is converted into sulfur dioxide. This is SO2 is a serious pollutant, so it needs to be removed before it escapes from the stack of a coal fired plant. One way to remove the SO2 is to add limestone, which
asked by Marissa 
science
A banana turning brown when exposed to the air is an example of
asked by Emma 
Chemistry
What volume of dry NO at 25°C and 1.00 atm can be prepared by reacting 6.35 g of Cu with 25.0 mL of 6.0 M nitric acid, HNO3? 3 Cu(s) + 8 HNO3(aq) > 3 Cu(NO3)2(aq) + 2 NO(g)+ 4 H2O(l)
asked by Anonymous 
Chemistry
What is the mass in grams of a 15.8 L sample of ozone (O3) at 1.67 atm and 30.0 °C?
asked by Anonymous 
math
#1)Which ratio forms a proportion? Use cross products to test each pair. (A)15/40, 35/90 (B)18/22, 45/55 (C)12/55, 33/121*** (D)17/31, 32/45 #2)Which ratio forms a proportion with 20/30? Use equivalent ratios to test each pair. (A)16/24 (B)10/20***
asked by helpasap 
math
debra needs to drive 14 miles to work.So far she has driven 6.7 miles.How many more miles must she drive
asked by shun 
Functions
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 Tim 
SCIENCE
The diagram shows the variation of air pressure from an alarm siren at particular instant. The speed of sound in the air is 340m/s. what is the period of alarm siren.
asked by RITIKA 
Chemistry
What is the molarity of the final solution if 2.00mL of the 5.00 M stock solution is diluted to 10.00mL to make solution A? Solution A then undergoes a second dilution by taking 3.00mL solution A and diluting it to 25mL.
asked by Chem 
World history
How did the Hun invasion weaken the Roman empire
asked by Imam olayinka 
geography
Is there a connection between The Balfour Declaration and the frustrations of Hezbollah? I have some vague ideas, but I need more info and more clear and in depth info! Thanks!
asked by Katie 
Math
Explain how to do 2/7 + 12/35 ?
asked by Susan 
math
Hi, I'm trying to learn factoring but a couple of things don't make sense to me and I'm hoping you could explain them. If I have P(x) = 2(x3)(x4), how do I automatically know that the zeros are x = 3 and x =4? If inside the parentheses it was (x+3)(x+4),
asked by Carly 
History
Why did Adams increase the size of the American navy? A)He wanted to prepare for allout war on Britain. B He hoped it would deter more attacks by French ships.*** C)He needed to use tax money to fund an increase in military spending. D)Congress passed a
asked by Ally 
Math
Mohit put 6 red balls and 7 black balls into a bag. What fraction of the balls are red balls?
asked by Lakshmi 
MATH: I CANT FUGRE IT OUT!
Use the unit price to find the total price. 8 gallons at $1.94 per gallon PLZ HELP!
asked by Agal 
Math
a furniture company makes similar chairs for adults and children. The height of the adult chair is 80cm while the height of the childrens chair is 50 cm. what is the ratio of their widths
asked by Anonymous 
Fluid Mechanic
3) Air at standard conditions enters the compressor shown in Fig. Q3 at a rate of 0.3m3/s. It leaves the tank through a 3 cm diameter pipe with a density of 1.8 kg/m3 and the uniform speed of 210 m/s. (a) Determine the rate (kg/s) at which the mass of air
asked by Adam 
Math
_ _ x _ _____ _ _ +_ _ ______ _ _ You can only use numbers 19 and each can be used once.
asked by Hannah 
Chem
If you have an equation for a line, y = 0.15x + 0.010, where y is absorbance and x is concentration in molarity of Fe (2+), calculate the concentration of a test sample with an absorbance of 0.065. What is the absorbance value for the blank in this
asked by Ch 
English
1. I have been there already. 2. I have already been there. 3. I was already there. 4. Already I was there.  Are they all grammatical? Which ones are commonly used? Do we have to use the present tense or the simple past tense?
asked by rfvv 
Social studies
Help! Modern news from ancient lands. Summarized news story completely using who, what, when, where, and why. Analyze the connections between ancient history and current events in the news story. Don't understand this at all.
asked by Fun boy 
math
John and Bryan share Rs 1500.If John gets twice as much as Bryan,how much money does Bryan have?
asked by Ali 
Math
The field is in a right triangle shape.The hypotenuse of this field is 6 metres and the peerimeter of this field is 14 metres.What is the area of the lawn?
asked by Kaeo 
Language
In "All Together Now", Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then,explain whether you find Jordan's appeal
asked by JDog 
Literature
Which of the following best describes the shift in the speaker's tone toward Naett? a. from affectionate to proud b. from worshipful to gloating c. from emotional to detached d. from sentimental to concerned
asked by Danielle 
algebra
Two workers can paint 800 meters of trim in 5 hours. How many meters of trim can be painted by 4 workers in 2 hours?
asked by Ebony 
History
Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the
asked by Connor 
Chemistry
What volume (in mL) of 1.0 M HCl is required to prepare 500 mL of pH 7.76 buffer using triethanolamine that is 0.020 M in both triethanolamine and triethanolammonium ion?
asked by Bruce 
math
1/6+(3/7)
asked by bllllllllllllllllll 
Statistics
A random sample of size n is to be drawn from a population with a mean = 1100 and SD = 300. What sample size would be necessary to ensure a standard error of 25? Sample sizes are whole numbers.
asked by Anonymous 
English
Posted by rfvv on Tuesday, October 11, 2016 at 5:39pm. 1. Seoul is the city. My family used to live in Seoul. 2. Seoul is the city where my family used to live. 3. Seoul where my family used to live is the city.  #1 can
asked by rfvv 
English
Which sentence structure sounds better? Days have gone by and Mary and Jane have not heard a sound from the neighbors cat. OR Mary and Jane have not heard a sound from the neighbors cat in days. I believe the second sentence sounds better.
asked by Kimmy 
HISTORY GOVERNMENT CCA
what characteritics do bureaucracies share? check all that apply Formal rules generalization clearly defined goals chain of command elected staff which of the following is part of the executive branch bureaucracy? the president's cabinet the congressional
asked by A.A 
English
Which of the following contains a noun clause? A. Louis did not know Jocie could not swim. B. Since last August we have not seen a drop of rain.
asked by Rena 
precalc
Sketch the graph of the function f(x) = (x+4)3(x+1)(x−2)2(x−5). /(x+3)2(x+1)(x−3)
asked by Anonymous 
chemistry
Pl help...what are the isomers of chlorodibromobenzene
asked by Maria 
Chemistry
One third of vanilla ice cream provides about 145 kcal of energy. A typical adult uses about 195 kcal/hr of energy while walking. If all of the energy in one third of a cup of vanilla ice cream were to be burned off by walking, how many minutes would it
asked by Lily 
Chemistry
The equation is N2 + O2 reacts 2NO Given 12.5 mg of oxygen reacts with 21.4 mg of Nitrogen what mass of product is formed
asked by Nicole 
Math
a salesman has a 42% chance of a sale at his first stop and a 42% chance at his second stop and a 14% chance at both stops what are the odds he will make a sale only at the first stop
asked by Lory 
English
1. It wasn't dark yet. 2. It wasn't yet dark. 3. It was already dark. 4. It was dark already.  Thank you for your help. Are they all grammatical? 'Yet' seems to be placed at the end of a sentence. What about #2?
asked by rfvv 
chemistry
Determine the mole fraction of lithium bromate in a 6.32 M aqueous solution of lithium bromate. The density of the solution is 1.16 g mL1. I understand that 6.32 M of solution= mols of the compound. I multiplied 1000mL by the density to get grams. I don't
asked by everest 
Precal
Solve (in radians) sec x = 2csc x When I work it out, it gets to 2cot x  1 = 0 cot x = 1/2 Would it be ok to use tan^1 (2) ? I must demonstrate it with a graph as well... would the line go through Q I/III or II/IV ? Thank you!
asked by A 
Chemistry (Mass/volume)
What are factors that will contribute to achieving the lowest mass/volume ratio possible for an airbag? The "mass" includes the mass of the reactants, bag, and any additional materials you would use to make the airbag. The "volume" is of the inflated air
asked by Ray 
Chemistry
What are the isomers of chlorobromobenzene
asked by Maria 
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 
math
James is painting his 10 by 8 foot bedroom wall that contains a 2 by 3 foot window. How many square feet of wall does he need to paint
asked by teresa 
Algebra
Which equation has the graph parallel to the graph 9x + 3y =22 y=3x22**** y=3x + 8 y=1/3x + 12 y = 1/3x2 Please check my answer
asked by Lost 
Algebra
What is g(2) for the function g(x) = x squared  2? I got 0, but it was wrong. Please help! Thanks!
asked by Katie 
Algebra
Could someone give me an example of how to do a table of values on a graph when y=3?
asked by Kate_Mack_Son 
math
A baseball team has 13 players; how many possible batting orders can the coach make if there are 9 players in the batting lineup?
asked by deanna 
Algebra
Find an equation of a hyperbola with vertices (0,3) and (−4,3) and e=3/2. Thank you
asked by Matt 
Algebra2
Use synthetic division to find p(3) for p(x)=x^42x^34x+4 Show steps
asked by Steve