Questions Asked on
May 12, 2016

math
a line is drawn from the origin to a point on the ellipse 9x^2+25y^2=225.find the equation of the locus of midpoint of the line.
asked by ekpe 
Functions
You purchased a new car for $22,000. The value of the car decreases by 15% each year. Which function could be used to model the value of the car, "V", after "t" years?
asked by BRIanna 
Functions
You own two restaurants. From 1995 to 2000, the sales R1 (in thousands of dollars) for one restaurant can be modeled by: R1 = 480 – 8t – 0.8t2, t = 0, 1, 2, 3, 4, 5, where t = 0 represents 1995. During the same 6year period, the sales R2 (in thousands
asked by BRIanna 
Functions
A car has 16 gallons of gasoline in its tank when it starts it's journey. On a long highway trip, gasoline is used at a rate of about 2 gallons per hour. The gallons of gas, "g", remaining in the car’s tank after "t" hours can be modeled by the function:
asked by BRIanna 
Mtheor y
Need help with figuring out the chords names in root and closed position, and also the V7 chord. I have a final exam tomorrow, wanna pass.
asked by Alie 
STATS
What is the probability that the average salary of a sample of 49 part time bank teller will be less than $22,600?
asked by Jen 
Chemistry
Calculate the pH of a buffered solution prepared from 0.25 mol KF and 0.75 HF after the addition of 0.05 mol of NaOH (assume a 1.0 L volume of solution) I get that i need to use two separate ice tables, but i don't really understand how to go about doing
asked by Megan 
Math
If a man travels at an average speed of 112 km,how far will he travel in 3 hours and 45 minutes
asked by Rearabetswe 
finance
A bank has currency and coins equal to $20 million in its vaults. It has securities worth $10 million, has borrowings equal to $5 million, and has given out loans equal to $2 million. It also has deposits with the Federal Reserve equal to $4 million. The
asked by finance 
math
Consider five circles with radii of 1, 2, 4, 8, and 16 inches. Complete the chart. (Answers will be in terms of Pi). One has been completed for you. RadiusCircumferenceArea 12pi in.pi in.^2 2 4 8 16 Help I have no idea what I'm supposed to
asked by Bear 
physics
You throw a softball (of mass 300 g) straight up into the air. It reaches a maximum altitude of 17.9 m and then returns to you. What is the gravitational potential energy of the softball at its highest position? Assume the ball departed from and returned
asked by Bob 
Math
compare the graphs of the inverse variations by comparing asymptotes, similar points, lines of reflections and quadrants y=0.7/x and y=0.9/x
asked by apop 
Pre Calculus
The following table shows the rate of water flow (in L/min) through a dam. t (min) 1 5 9 13 17 21 25 V'(t) (L/min) 6 6 2 2 3 6 2 Approximate the total volume of water that passed through the dam from t=1 to t=25 using Simpson's rule, with n=6.
asked by John 
Maths
The area of a rectangle of width ycm is 140cm^2. If the width is reduced by 2cm, the length increases by 3cm, and the area decreases to 136cm^2 to form an equation that enables you to determine the value of Y and hence, find the diagonal of the original
asked by Carter 
Chemistry (Stoich)
13.In a study of rustremoving solutions, 27.8 mL of 0.115 mol/L phosphoric acid reacts completely with 0.245 mol/L sodium hydroxide. Predict the minimum volume of sodium hydroxide required for this reaction? 3 NaOH + H3Po4 = 3H20 + Na3PO4 (27.8 ml)(0.115)
asked by Studying 
physics
A ball is thrown from a height h and another from 2h.find the ratio of time taken by the two balls to reach the ground.
asked by sofia 
physics
A window is 50 long. A stone is falling from a height of 40 cm above the window.find the time taken by the stone to cross the window.
asked by sofia 
chemistry
Calculate the temperature in kelvin of a 2.5 mol sample at 8.3 atm in 45 L. Give your answer to 2 sig figs. Which equation do I use to calculate temperature?
asked by Kierstin 
Chemistry
A naturally occuring sample of copper consists of 69.2% of Cu63 and 30.8% of Cu65.The relative atomic mass of Cu63 is 62.93 and that of Cu65 is 64.93.Find the atomic mass of a naturally occuring sample of copper.
asked by Bhagavatula yogiraj 
calculus
A fertilizer producer finds that it can sell its product at a price of p=300x dollars per unit when it produces x units of fertilizer. The total production cost (in dollars) for x units is C(x)= 20,000+24x+0.5x^2. How many units must be manufactured to
asked by Qwenie 
statistics
A survey of 50 lobster fishermen on Funafuti (an island in Tuvalu), found that they catch an average of 32 pounds of lobster per day with a standard deviation of four pounds. If a fisherman is selected randomly, what is the probability that his catch is
asked by Qwenie 
math
In a class of ten pupils the grades in a spelling test were: 97 − 97 − 97 − 92 − 92 − 85 − 76 − 73 − 65 − 60. The mode ofthose scores is: Read more
asked by priti shaw 
science
If a bungee rope has a spring constant of 60 N/m. How far will it extend (stretch) if a person who weighs 600N (60Kg) is placed on it?
asked by HILL 
English
1. Sleep at least for 78 hours a day. 2. Sleep at least 78 hours a day. (Are they correct? Can we delet 'for'?) 3. Don't write on the book. 4. Don't write in the book. (Are both OK? What is the difference?)
asked by rfvv 
English
1. I will do my best. 2. I shall do my best. (#1 is right, #2 is wrong? Am I right?) 3. I will/shall be 15 years old next year. (We can use both 'will' and 'shall', right?) 4. I will die. 5. I shall die. (Are both the same? Does #4 mean I intend to die?
asked by rfvv 
Math
Matt cut a circle into 8 equal parts.He drew an angle that measures the same as the total measure of the 3 sections in the circle.What is the measure of the angle Matt drew?
asked by Sakura Matsuo 
math
How many gram of sodium fluoride should be added to 100000 liter of drinking water containing 0.6 ppm of sodium fluoride to provide a recommended concentration of 1.75 ppm? Answer is 115 grams. I keep getting .115 g What am I doing wrong? Please help.
asked by Jessica 
S.st
What are the answer for number 3 and 4 in week 17 for 4th grade??..
asked by Chi 
chemistry
the solubility of Mg(OH)2 at 25C is4.6x10^3 g/100cm3? what is the solubility product of M g(OH)2?
asked by ali 
Chemistry
Given the following information: C(s) à C(g), H = +715 kJmol1 Cl2(g) à 2Cl(g), H = +242 kJmol1 C(s) + 2Cl2(g) à CCl4(g), H = 135.5 kJmol1 Calculate the average bond dissociation enthalpy of a CCl bond.
asked by C 
Algebra
Please can someone help me. 1.Simplify x/7x+x^2 A.1/7+x;where x≠7 B.1/7x;where x≠0 C.1/7+x;where x≠0,7 D.1/7****
asked by GummyBears 
science
A ball is thrown upwards and reaches the ground once again after 4 sec: (a)calculate the height that the ball reaches (b)the total distance covered by the ball (c)the velocity with which the ball hits the ground
asked by sebenano 
chemistry
A large salt crystal having a volume of 56 cm3 and a density of 2.17 g/cm3 was dissolved in to sufficient water to make 375 mL of solution. What is the salt concentration in the solution as g/L?
asked by chrissy 
Language Arts
Which of the following sentences contains a dependent clause? a) My mother, who never wastes anything, rinsed and saved the takeout boxes.* b) We were running late and, we had to skip stopping by the post office. c) I had never been to New York before
asked by Anonymous JAK 
life orientetion
Are individuals empowered and do they understand their human rights or when their rights are being violated
asked by abigail 
Language Arts
Can you check my answer? Matt hiked the trail yesterday. It made him tired. Which sentence combines the two sentences using a gerund phrase? A hiking the trail yesterday made Matt tired B Matt hiked the trail and it made him tired. My answer CIt made
asked by April 
Life orientation
Describe three human rights violations
asked by Pontsa 
chemistry
white powder of calcium oxide is added to beaker containing water?
asked by kiranmai 
English
1. I will die. 2. I intend to die. (Are both the same in meaning?) 3. You shall die. 4. I will kill you. (Are both the same in meaning?) 5. He shall go there. 6. I will make him go there. 7. I will let him go there. (Are they the same in meaning? Does #5
asked by rfvv 
life orientation
Cleary describe a recent corruption and fraud case in the country making headlines in the media.who the role played by the media and that of the state to deal with this crime.How the fraud and corruption affected the offender career.Use appropriate
asked by Meldah 
English
Thank you for your help. I need your help in using 'will' or 'shall' in interrogative sentences. 1. Shall I open the doll? 2. Do you want me to open the door? 3. Do you want to let me open the door? (Does #1 mean #2 or #3?) 4. Will you go there? 5. Do you
asked by rfvv 
life orientation
evaluate the physical,social and the economic consequences of this crime to the offender.how did this corruption and fraud impact negatively in the country:example service deliverx tax,expense of trial,etc.
asked by tshego wa deco 
Maths
a pool has an equal depth of 2m and length is 10 m. if the volume is 100m3, what is the breath of the pool?
asked by Pono Ncube 
math
the price of tickets were reduced to 20%. the total number of sales of tickets increased by 60%. find the percentage increase of tickets.
asked by imli 
energy,power,wurk
a 3kg ball is dropped from a helicopter 2oo meters above the ground calculate a.GPE just before being dropped b.kE just before impact
asked by Ndiko 
English
One of the don'ts is as follows. 1. Don't say bad words. 11. Don't use bad words. 2. Don't use bad language. 22. Don't say bad language. 3. Don't swear. 4. ___________  Are they all grammatical? Do you have other similar expressions?
asked by rfvv 
Chemistry
Activation energy is____ the heat released in a reaction*** the energy barrier between reactants and products the energy given off when reactants collide generally very high for a reaction that takes place rapidly
asked by Annamarie 
english
14. What is the prepositional phrase in this sentence? He stood beside the pool watching the children play water games a. he stood*** b. beside the pool c. watching the children d. play water games
asked by english 
social studies
Summarize the ways which minnesotans contribute to WW2
asked by alyssa 
math
tow pols of haights between 6meter and 11meter stand on a plane graund .if the distanse between the feet of the poles 12 meter .the distanse their tops equal to
asked by azmat 
Algebra 1
Pressure and volume vary inversely in the idea has law. The pressure exerted by a gas of volume 150cubic inches is 30 p.s.i. Find the pressure exerted by the gas if the volume is decreased to 50cuboc inches
asked by Pj clancy 
Life Orientation
Discuss Two examples from the media to show how the media supports Democratic society?
asked by Stabile 
Math
a sum to infinity which is three times the first term. find the first term
asked by Dave 
Math
a geometric progression has a third term of 20 and a sum to infinity which is three times the first term. find the first term
asked by Dave 
Language Arts
Hello, I always really have a hard time trying to figure out if a syllable is stressed or unstressed. Is there any trick that will tell me if a word is? Or just something that will make it easier to identify? Also, can someone explain to me what metrical
asked by Anonymous JAK 
reed
14. What is the prepositional phrase in this sentence? He stood beside the pool watching the children play water games a. he stood b. beside the pool** c. watching the children d. play water games
asked by english 
Physics
A model rocket is launced from the ground with an initial velocity of 65 m/s directly upwards. If a horizontal wind is blowing at 5 m/s during the flight, how far from the launch point will the rocket land? I know I should probably be using the equation
asked by Jessica 
Physics  Fields
A fan causes a velocity field that falls off inversely with the distance from the fan. For one fan, the air speed at 1.3 m is 6.3 m/s. If two of these fans are placed 3 m apart, pointed at each other, what will be the air speed 1 m away from one of the
asked by PLEASE HELP ASAP 
science
what is inertia?
asked by prasanna 
Math
A group consists of 5 boys and 6 girls. How many committees of 5 can be formed that consits of 2 boys 3 girls. Multiple choice: a)150 b) 200 c) 1800 d)2400
asked by Carli 
Math/Precal
How many 4 digit numbers greater than or equal to 3000 and less then 8000 can be formed with no repition in there digits??
asked by Bub 
math
check my answers pls 1. which solid has two bases that are triangles and three lateral surfaces that are rectangles a. triangular pyramid b. rectangular prism c. triangular prism *** d. rectangular pyramid 2. a solid with two parallel and congruent bases
asked by 666name999 
math
Arianna has a large piece of fabric that she wants to use to make some scarves. The number N of scarves she can make is inversely proportional to the area A of each scarf. If the area of each scarf is 3 square feet, then she can make 15 scarves. If the
asked by Claire 
math
What is the value of x? x over 4 equals 14 over 16 x/4 = 14/16 x=3.5 ?!??
asked by anna 
Chemistry
A 100g sample of water absorbs 308kJ of heat. If the water was initially at 10 degrees Celsius, what is its final temperature?
asked by Homework Help: 
math
Arianna has a large piece of fabric that she wants to use to make some scarves. The number N of scarves she can make is inversely proportional to the area A of each scarf. If the area of each scarf is 3 square feet, then she can make 15 scarves. If the
asked by Claire 
Math
In a geography class 9 students are scheduled to give their presentations tody, one student must leave early so he will present first, how many different ways can you schedule all of todays presentations?
asked by Clark 
math
9. solve 4x + 3 = 9 + 2x and check for extraneous solutions. the first answer I got was: 4x +3 = 9 + 2x 4x = 6 + 2x 2x = 6 x = 3 can someone help me find the other answer? thank you!
asked by emily 
Maths
There are 17 points on the circumference of a circle how many lines can be drawb to connect all possible pairs of points?
asked by Harley 
science
Why are rainforests the most diverse ecosystems? 1: they are near bodys of water 2: They have a favoritable climate 3: they are surrounded by mountains 4: they have more pollutants than any other ecosystem I think its 2 Am i right?
asked by Lol:3 
English
I need to select any writer and come up with five good questions. Example: Edgar Allen Poe 1. What was Poe's early life like? 2. What became of the women in his life? 3. What is tuberculosis and how does it kill people? 4. Was Poe mentally ill? 5. What
asked by Kaai97 
Math
A rectangular prism is 18 inches tall and has a square base whose length is 9 inches. Oliver plans to cover the top and bottom of the rectangular prism with material A, which costs 2 cents per square inch. He then plans to cover the other four faces of the
asked by Steve 
English
What purpose for reading do the stage directions suggest to readers? 1.to learn about a subject 2.to be inspired 3. To be entertained 4.to gain understanding
asked by Lol 
6th grade math
Complete the function table. Then write a rule for the function table. Input Output 3 [missing] 2 4 1 [missing] 0 [missing] 1 1 Please show step by step and explain. Thank you!
asked by Lily Longoria 
Science
If you are in a spacecraft that has been launched into space, your weight would A) Increase because gravitational force is increasing. B) Increase because gravitational force is decreasing. C) Decrease because gravitational force is decreasing. D) Decrease
asked by Rose 
Math
How do i solve algebraically for n. 9n=3(nP2)
asked by Harley 
Math
A student created a 6 character computer password, the password strts with 4 digits, the first of which is he number 3, followed by 2 letters, the firsr of which is a consonant. How many different passwords are possible if repetition is allowed?
asked by Babs 
Math/Precal
Given the word OCTOBER, how many different 3 letter words can be created??
asked by Cierra 
chakraborty
arrange the following solutions in order of decreasing specific conductance 0.01 M NaCl,0.05 M NaCl,0.1 M NaCl, 0.5 M NaCl
asked by Raja 
6th grade math
Write an inequality to represent the equation: The temperature stayed above  15 degrees.
asked by Lily Longoria 
Chemistry
how many atoms of S are in 9.2 moles of Na(SO4)2?
asked by Emergent help please!! 
science
Explain how you would prepare a sulphuric acid solution.
asked by Chali 
Spanish
Can someone who is good at Spanish (or fluent) please proofread these short stories I'm writing for my Spanish class? I am at a borderline grade right now, and if I can get a good grade on this assignment I can get pushed up to an "A". Thank you so much to
asked by Fred 
Math!!
Find the lateral area for the square pyramid. Height: 22 Base: 8 Side: 8 I know the answer, I just want someone to show me how to actually calculate it to find the answer. Thanks :)
asked by Val 
Math
As part of their job, meteorologists make weather predictions from data. How accurate are their predictions? What are other scenarios in which you would use data to make a prediction? How would you defend your prediction using data? I really don't get this
asked by Gabby (PleaseHelp) 
Health
_____ is an eating disorder that is characterized by an irrational obsession about gaining weight in which the person severely limits the food he or she eats.?
asked by Becky 
math
Laketown had 215 inches of snowfall last year, but only 155 inches this year. What was the percent decrease in snowfall for Laketown to the nearest percent? A. 28% B. 39% C. 72% D. 139%
asked by anna 
History
How does elevation impact ecosystems in South America A. Farmers can grow different crops at different elevations (this one?) B. Plants do not grow above the tree line C. Animals can't live in higher evelations D. Humans settle only in the lowest
asked by Anon 
math
HOW should i start this im confused. The theater arts committee estimated that it would sell 200 tickets for its upcoming play. The committee actually sold 224 tickets. What was the percent error in the committee’s estimate? Round your answer to the
asked by anna 
Health
1. Name the six basic nutrients needed by the body. What is each of their function? What types of foods might you find them in? How do they each benefit the body? 2. Define dehydration. Discuss the effects of dehydration on the body. What is a diuretic?
asked by Becky 
sciencechemistry
The extent of ionisation in a 0.75M solution of a monoprotic acid is 0.040. calculate Ka
asked by shelagh 
6th grade math
Suppose you are driving to visit a friend in another state. You are driving 60 miles per hour. You must drive 480 miles total. If you have already driven 120 miles, how long will it take you to reach your destination? If you have already driven 120 miles,
asked by Lily Longoria 
Civics
What is a Communist Government? Could someone explain how it operates in the simplest way possible? Thanks :)
asked by Lol:3 
Physics
An empty density bottle weight 20g full of water and 60g when full of liquid
asked by Anonymous 
Math
A jug of water is 1/2 full. If 3 children equally share the water, what fraction of the full jug does each child get? A.6 B.1/6 C.2/3 D.3/2
asked by Summer 
Science
Give the reagents that can be used to prepare CucO4
asked by Ama Nelson 
Science
Give the reagents that can be used to prepare Kcl
asked by Ama Nelson 
Science
Compare the pH of CH3 COOH and Hcl.
asked by Ama Nelson 
L.A
During her time in the Secret Annex, Anne demonstrates that she is a unique and remarkable young person with many dimensions to her character. In an essay, explain what makes Anne a complex character. Include details from The Diary of Anne Frank, Act I and
asked by Anonymous 
Algebra
How to solve this problem? Steps please. (2√5+3√7)^2
asked by Kaai97 
6th grade math
Starlight tree farm sells Douglas firs and noble firs. One December they sold 139 more Douglas first than noble first. The total number of trees sold was 377. Which equation could be used to solve for n the number of noble of threes sold? A. N – 139 =
asked by Lily Longoria 
Science
Some constellations, such as Ursa Minor, are visible in the sky yearround; other constellations appear for only part of the year. Explain why this happens.
asked by lifeisgreat 
Math
Assume that y varies directly with x, then solve. If y=18 when x=6,find x when y=6
asked by Chey 
chemistry
The H3O+ ion concentration in water is 1/10000000 molar.The degree of ionisation of H2O is? If given molarity of pure water is 55.5Molar.
asked by monika 
Math
How to draw tow different parallelograms that each have an area of 4 square inches
asked by Marcus 
Math
Find the inverse function of f(x)=(x+4)/(2x5) and then verify your result using: f(f^1(x))=x and f^1(f(x))=x. Please an answer fast
asked by Shuki 
Algebra
How to solve this problem by rationalizing the denominator? Steps please. 4sqrt6/sqrt30
asked by Kaai97 
history
Evaluate the effectiveness of nixon's solution. was it successful? how do you determine this?
asked by aria 
Math
What is the surface area of the given figure? Side: 26 Side: 28 Height: 10 Width: 36 a) 2,564cm^2 b) 2,276cm^2 c) 2,184cm^2 d)1,160cm^2
asked by Val 
Math riddle
Why does the us need a new building riddle plz help
asked by Elijah mann 
Math
In mr tarkanian history class each student chooses two of the topics listed in the chart above for their papers. how many different pairs can juliana choose?
asked by HELP!! 
math
rajeev, who is sixteen years old, is four times as old as his sister. How old will Rony be when he is twice as old as his sister?
asked by raju 
Mathematics in English
Rectangular prism, Describe the object by using words such as surfaces
asked by zandile 
physicss
1) Is it possible for the net torque to be opposite the direction of angular velocity 2) Can momentum be conserved if mechanical energy is not conserved?
asked by AMELIA 
Maths
Triangle AB is 12cm & BC is 15cm find length AC&perimeter
asked by Beck 
science
Calculate the ratio of kinetic energies of 3gms of hydrogen and 4gms of oxygen at a given temperature
asked by nithya 
Physics
1gram of redioactive material having a half life of 2years is kept in a store, calculate how much of the material will remain unchage?
asked by King hezey 
SS
how did christian ideas spread to europe
asked by becky 
Algebra  Check My Work
For Question 18 Simplify the Radical Expression ***  My Answer 1.√45 3√5*** 2.√180x^2 6x√5*** 3.√150x^3 k^4 5xk^2√6x*** 4.√21y * 5√49y 35y√21*** 5.(The square root sign applies for the whole equation; both numerator and denominator)
asked by Kaai97 
Social Studies
Evaluate the effectiveness of Nixon's solution to the promise he made(to find a way to stop the Vietnam war, pledging america would have peace with honor.). was it successful? how do you determine this?
asked by aria 
History
I'm looking for globalization in the Andes. I'm not looking for answers just maybe a link for help or something? thanks.
asked by Anon 
Language Arts
Under a spreading chestnut tree The village smithy stands; The smith, a mighty man is he, With large and sinewy hands; And the muscles of his brawny arms Are strong as iron bands. His hair is crisp, and black, and long, His face is like the tan; His brow
asked by anon 
Global Communication
How would you communicate with stakeholders of a financial institution such as a bank in the UK and Russia during and after an organizational crisis involving corruption which might impact jobs and investors? Hoping for some good insight, thank you!
asked by Gertrude 
life orientation
3human right violation or discrimination and explain in an introductory paragraph why you choose the specific human right violation or discrimination
asked by kabelo 
economic
Write an essay based on this topi The south african government is not providing enough welfare or subsidies to the poor and underprivileged bassed on the following topic 1.what are welfare and consumer subsidies 2. What is the south african government
asked by muano 
fluid mechnics
A 1 diameter pipe with volumetric flow rate of 1 m³/s has a constriction down to half the original diameter.what is the velocity in the constriction.
asked by Benjamin Aidoo junior 
history
Evaluate one viewpoint on each of the following in the Andes and the Pampas: the environment, globalization and the economic growth
asked by Anon 
History
1 who was the abolitionist captured at harpers ferry virginia 1 john brown 2 harriet tubman 3fredrick douglass*** 4 simon legree 3 the first president of the confederate states if america was Abraham lincoln Robert e lee Jefferson davis John x Calhoun
asked by Help me 
psychology
A researcher strongly believes that physicians tend to show female nurses less attention and respect than they show male nurses. She sets up an experimental study involving observations of health clinics in different conditions. In explaining the study to
asked by Emma 
math
toffees are sold in packs of 8. Tony buys 4 packs. He eats 25 toffees. How many toffees are left?
asked by Anonymous 
CHECK my answers for drivers education please!
11. The only sure way to reduce the body’s BAC and the degree of impairment is to (1 point) take a cold shower. wait the necessary time the body needs to eliminate the alcohol.*** handle a sudden emergency. consume several cups of black coffee. 12.
asked by Anonymous 
Science
Where is most of the surface water on earth found? a) as freshwater in rivers b) as frozen water near the pole c) as groundwater under the surface d) as salt water in oceans I think its either A or D. Am I correct?
asked by Val 
life orientation
Why would you choose a right to better education
asked by nsovomkhawana 
Math
A student created a 6 character computer password, the password strts with 4 digits, the first of which is he number 3, followed by 2 letters, the firsr of which is a consonant. How many different passwords are possible if repetition is allowed? I know its
asked by Babs 
Math
How many 4 digit numbers are greater then 7538 can be made using the digits, 0,3,5,7,8,9 without repetition?
asked by shawn 
Algebra
Jill gets 1.5 her hourly rate after she works 40 hours. She worked 52 hours and earned 638. What is her hourly rate? I ALWAYS get a repeating decimal! I need help! 40x 12(1.5x)= 638 26.66...12x= 638 Now what do I do? It's a repeating decimal!
asked by Person 
Math/Precal
There are 12 students to be seated in a row of 12 chairs, paul and martha have broken up and will not sit together. How many different seating arrangements are possible?
asked by Carli 
Maths
How do i find the entire term containing x^51 in ((x^6/2)(2/x))^12
asked by Harley 
math
a plat form and a building are on the same horizontal plane , the angle of depression of the bottom of the building from the top A of the platform is 39 degree. the angle of elevation of the top D of the building from the top of the platform is 56 degree.
asked by chris 
Math
The serving size babies need to be fed is 2 fl. oz. Knowing that I can feed the baby 8 times a day & 3oz. of formula each time, How much formula will I be using daily? Answer: 24 oz. How much formula will I be using... weekly? Monthly?
asked by Tae 
maths
A boy 1.5m tall,while standing, views the top of a pole of height 10m at angle of elevation of 40 degrees.How far away is the POLE.?
asked by Olatunji 
Human Geography
I am going to take the AP test for this class tomorrow and during the FRQ's I was wodering if anyone could help me clear some things up When answering an FRQ, for example, if you were able to get a max of 6 points and you answer the FRQ but you don't give
asked by Anonymous 
Civics
What is the impact of Sixth Amendment?
asked by Victoria 
@grape fruit 420 & other cheaters
Your request for answers to a test has been deleted. If you post that again, you will be banned from posting here. Also  anyone else who asks for or gives test/quiz answers is likely to be also banned.
asked by Ms. Sue 
Physics
A particle executes simple harmonic motion such that at t = 0 it is at the amplitude of oscillation A = 22.5 cm. The period of the oscillation is 0.25 s. When is the first time this particle will be at x = 1/2 the amplitude, moving away from equilibrium?
asked by Anonymous 
math
write the function xy=4 in explicit form. Please i need a fast answer
asked by Shuki 
Inequality
What is the solution to the inequality 3x42>3?
asked by Anonymous 
Pharmacy calculation
An Rx calls for hydrocortisone 1% mixed with mupirocin 2% in a 70%/30% combination for a total of 60 grams. What is the % strength of mupirocin in the final product? Can anyone out there help explain how to answer this question? Thanks in advance.
asked by Anonymous 
Maths
A rectangle lawn has perimeter of 34m. Another rectangular lawn is 2cm narrower but 2m longer than the first lawn. If A(one) and A(two) are the areas of the first and second lawn respectively and A(one):A(two)=7:6, find i)the dimension of the lawn. II)the
asked by Carter 
Calculus
A searchlight revolving once each minute is located at a distance of 1/4 mile from a straight beach. How fast is the light moving along the beach when the beam makes an angle of 60° with the shore line?
asked by Sandra 
English
i need help by this topic english is the language of opportunity,why bother to teach indigeneous languages?
asked by Morwesi 
math
A credit card company charges 7% simple interest. What is the total interest on a $1,900 loan at the end of two years?
asked by Anonymous 
math
John leaves on a 20mile bike trip. He rides at a speed of 8 mile per hour. Ashley leaves 1 hour later. Both bikers take the same route. Ashley rides at a speed of 6 miles per hour. How many later than John will Ashley complete the trip?
asked by Anonymous 
Math
w^2 ____ w^0 or w^2/w0 Simplify. Answer as a power with a positive exponent
asked by Xavier Norby 
calculus
Use implicit differentiation to find dy/dx if 384,000=30x^1/3y^2/3 .
asked by Qwenie 
math
A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous bounce. After which bounce will the ball rebound to a maximum height of 1 ft?
asked by Anonymous 
Math
write the function 6^xy=4 in explicit form. Please i need an answer fast. thank you
asked by teta 
Math
a cake is cut into 12 equal pieces. there are 7 children and each child eats 1/3 of a piece
asked by Anonymous 
N.H.H
Theresa has $26 in her wallet. The bills are worth either $5 or $1. If there are 14 bills total, how many does she have of each type?
asked by Ann 
Math
1) If the Sin(70 degrees)= Cos(A), what must A be? 2) Why is the Sine of 10 degrees the same as the Cosine of 80 degrees?
asked by Sammy 
Calculus
A particle moves along the curve y=lnx so that its abscissa is increasing at a rate of 2 units per second. At what rate is the particle moving away from the origin as it passes through the point (1,e)?
asked by Alexa 
Differential Calculus
A clock has hands 1 and 1 3/5 inches long respectively. At what rate are the ends of the hands approaching each other when the time is 2 o'clock?
asked by Serena 
pre calculus
The population of foxes in a certain region over a 2year period is estimated to be P1(t) = 300 + 50 sin(πt/12) in month t, and the population of rabbits in the same region in month t is given by P2(t) = 4000 + 400 cos(πt/12) . Find the rate of change of
asked by ChrismB please help me 
algebra pls pls help
The equation f(x) = 4x^2 − 16x + 9 represents a parabola. What is the vertex of the parabola? (2, −7) (−2, 57) (4, 9) (−4, −137) is it a pls helpme
asked by Oscar 
Geometry
A triangle pyramid with a base area of 18 square inches and a height of 15 inches...
asked by Anonymous 
algebra pls pls help
Factor completely: 2x^3 + 14x^2 + 6x + 42? A. 2[(x^2 + 3)(x + 7)] B. (2x^2 + 6)(x + 7) C. (x^2 + 3)(2x + 14) D. 2(x^3 + 7x^2 + 3x + 21) is it d pls help me
asked by Oscar 
Social studies.
John C. Calhoun proposed that neither Congress nor local governments had the authority to ban slavery from a territory but why i need to know plz help...
asked by Cheyenne 
social studies
what impact did early and ongoing European immigration have on native american peoples? dont know the answer anyone could help that would be great!
asked by summer.a.w.j 
algebra pls pls help
Determine which polynomial is a perfect square trinomial. 49x2 − 28x + 16 9a2 − 30a + 25 25b2 − 45b − 81 16x2 − 24x − 9 is it b pls help me
asked by Oscar 
social studies
how did immigration change during the period between the civil war and the early 1900's?
asked by summer.a.w.j 
Chemistry
Insoluble silver carbonate, Ag2CO3(s), forms in the following balanced chemical reaction: 2AgNO3(aq) + K2CO3(aq) = Ag2CO3(s) + 2KNO3(aq). What mass of silver nitrate, 2AgNO3(aq), reacts with 25.0 g of potassium carbonate,K2CO3(aq),if there is at least 5.5
asked by Gale 
Physics
You know that you can safely stand on the hangover end of a heavy plank that rests on a table. How far depends on your mass and the mass of the plank. Suppose you can stand on the end of a plank that overhangs the edge of the supporting table 1/5 its
asked by Armen 
Language Arts
I have a Language Arts review crossword, and one hint is "Scrooge and Tiny Tim in A Christmas Carol". The word is 10 letters long, and has an E as the eighth letter. Thanks!
asked by Unknown 
Equivalent fraction
How can you tell if two fraction are not equivalent using fraction strip
asked by Hailey 
Math
John has travel 630 miles. The car does 27miles per gallon. The car has a 9 gallon tank. How many times will he have to fill up.
asked by Joe 
Chemistry
would it be possible to dissolve 50g of sodium chloride in 100g of water? explain.
asked by Kinge 
Math
name two fractions that you know are equivalent to 1/2
asked by Hailey 
Math
7+7=
asked by Varsan 
science
a structure holds a baby. TRUE or FALSE. Explain. Show your work. Doublecheck and be patient.
asked by Varsan 
Civics (Reed)(Check/Help!)
What information is being presented in the Bills of Rights? What facts are presented? A: religion (congress cannot establish a religion; congress cannot stop you from practicing); Speech (Congress cannot stop you from expressing your opinions; congress
asked by Victoria 
6th Grade Science  Connections Academy
Why is it important to understand how an ecosystem is organized? (essay)
asked by Geek Girl 
Science
The human egg cell above is magnified using a 10´ ocular lens and a 40´ high power objective lens. (a) Calculate the overall magnification. (b) If the field of view at highpower magnification is 400 mm, calculate the size of the field of view when the
asked by HELP ASAP 
Science
If 100 mL of hydrogen peroxide decomposes how many liters of O2 is formed
asked by Sawyer 
math
in a box plot the first quartile is x the median is y and the third quartile is 70. the median separates the box into 2 quartiles each with the same range
asked by olivia 
Math, Algebra
81^3(x+1)=9^2(x1) Solve this equation by expressing both sides as powers of 3.
asked by Anonymous 
Math, Algebra
81^3(x+1) = 9^2(x1) Solve this equation by expressing both sides as powers of 9.
asked by Anonymous 
calculus
Find the area of the region bounded by the graph of f(x)=x(x+3)(x+1) and the xaxis on the interval [3,0]
asked by Anon 
chemistry
1. A large salt crystal having a volume of 56 cm3 and a density of 2.17 g/cm3 was dissolved in to sufficient water to make 375 mL of solution. What is the salt concentration in the solution as g/L?
asked by Montie Stengel 
Algebra
The underside of a concrete bridge forms a parabolic arch that is 32 meters wide at the water level and twelve meters high in the center. The road (top of the bridge) is forty eight meters wide, and the minimum thickness of the concrete is two meters.
asked by Someone that wanna pass 
Algebra
Jill gets 1.5 her hourly rate after she works 40 hours. She worked 52 hours and earned 638. What is her hourly rate? I ALWAYS get a repeating decimal! I need help! 40x 12(1.5x)= 638 26.66...12x= 638 Now what do I do? It's a repeating decimal!
asked by Person 
Math
If I have $135 and I put 3/8 of it away in savings, how much do I have left to spend? I tried doing division, but I got 360 and I can't think of any other equations..
asked by Lex 
Math
The sum of two numbers is 15. Three times the second number minus four times the first number equals 4. What are the missing variables? Please show your work.
asked by Connie 
Chemistry
45.1 grams of Sodium Chloride is combined with 72.3 grams of barium phosphate. Balance the following equation NaCl + Ba3(PO4)2 > Na3PO4 + BaCl2 How many grams of Barium dichloride will be produced?
asked by Adam / DrBob222 
Math, Algebra
81^3(x+1)=9^2(x1) Solve this equation by expressing both sides as powers of 3.
asked by Anonymous 
Geometry
A child is using sidewalk chalk to draw a triangularshaped area for a game. If the height of the area is twice the base, and the base is 6 feet, wat is the area of the game? I know b=6 & h=2 x base (2x6)..I need help please
asked by Elijah 
Math
5(x1)+3x+6=9
asked by Toya 
Chemistry
A current of 2 Amperes is past for 30minutes. Calculate the mass of sodium and the mass of copper deposited.
asked by Anna 
Physics
The human egg cell above is magnified using a 10´ ocular lens and a 40´ high power objective lens. (a) Calculate the overall magnification. (b) If the field of view at highpower magnification is 400 mm, calculate the size of the field of view when the
asked by help please 
Math
1/2(k5)=3
asked by Marybeth 
College Physics
a delivery truck is 5km away from a car. The two started at the same time and headed towards the same direction. the delivery truck accelerates at 3m/s^2. If the car should overtake the truck in ten minutes, what should be the acceleration of the car?
asked by Patrick 
Math
In a card game player get at the start 2 green cards, 3 blue cards, 4 red cards, and 3 yellow cards. In how many ways can the player get cards at the start if this card game has 7 green, 7 blue, 10 red and 10 yellow cards?
asked by Joe 
Math
In how many ways can a committee of 12 people, of which 5 must be in the 21−30 age group, 4 must be in the 31−40 age group and 3 must be in the 41−50 age group, be chosen if there are 6 people of each age group?
asked by Joe 
Math
In how many ways can a team of 5 players and a coach be chosen from 10 players and 5 coaches? How many of these teams will contain Alex, one of the player?
asked by Joe 
Math
What are the numbers to the median of 38 and mode of 40 minimum of 9 and maximum of 85?
asked by Anthony 
Math probibility
What is the probability that ma.martin will pick 2 girl names if there are 11 girls and 12 boys in her class??????
asked by Helppp 
science 4th grade
What is the property of matter that keeps a moving object in a straight line called
asked by Anonymous 
social studies
Who became the first Hatian president to be elected democratically in many years in 1990
asked by cory 
Life orientation
how can I write newspaper article as supporting information on human rights violation?
asked by Nsovo 
Chemistry
A solution is 25% by mass calcium nitrate and has a density of 1.21 g/mL what is the molarity?
asked by Adrian 
Chemistry
A solution of concentrated NaOH is 16.4 M. If the density of the solution is 1.43 g/mL what is the percent by mass NaOH?
asked by Olivia 
Chemistry
Concentrated nitric acid is 70% HNO3 and 14.7 M. What is the density of the solution?
asked by Julia 
PreCalc
An initial investment of $9000 grows at an annual interest rate of 5% compounded continuously. How long will it take to double the investment?
asked by Anonymous 
College Physics
A car moving at constant velocity of 14 m/s passes a gasoline station. two seconds later, another car leaves the gasoline station and accelerates at the constant rate of 2m/s^2. How soon will the second car overtake the first?
asked by Patrick 
SciencePhysics
As shown below, a 2.00 kg mass is connected to an unknown mass m via a massless rope and a massless, frictionless pulley. The mass m is on a ramp angled 20 degrees above the horizontal. The coefficients of kinetic and static friction are μk=0.35 and
asked by Justin 
PreCalc
Tritium, a radioactive isotope of hydrogen, has a halflife of 12.4 years. Of an initial sample of 69 grams, how much will remain after 75 years?
asked by Anonymous 
Civics (Reed)(Check/Help!)
What information is being presented in the Bills of Rights? What facts are presented? A: religion (congress cannot establish a religion; congress cannot stop you from practicing); Speech (Congress cannot stop you from expressing your opinions; congress
asked by Victoria 
chemistry
If 987g of oxygen gas reacts completely with hydrogen gas, what volume of water vapor will be produced (in L) at 0.954 atm and 465 degree=es celcius?
asked by Kierstin 
Math
I need help please. Add the opposite of 13 to the reciprocal of 9
asked by Brenda 
Math
Tina baked a loaf of cinnamon bread and cut it into 15 equal pieces. Four people ate an equal number of pieces left. there are three pieces left. what fraction of the bread to each person eat ?
asked by Karina 
life orientation
Evaluate the physical,social and economic consequences of this crime to the offender.how did this corruption and fruad impact negatively in the country For example service delivery, tax etc
asked by Reneilwe