Questions Asked on
May 28, 2018

Math
Rewrite in rectangular form: r=6 cos theta I got (x3)^2+y^2=6
asked by Andrea 
Chemistry
how many grams of Al2O3 be obtained if 13.5 g of aluminum completely reacts with oxygen as 4Al+3O2>2Al2O3 Molar mass of Al is 27g/mol.
asked by Alia Misbah 
Chemistry
What will happen if a mixture of BaCl2.2h2O and KCl heated up to 150 centigrade ?
asked by Ashen 
Economics
In recent years, the governments of the industrially advanced countries have A. discouraged skilled developing countries' workers from emigrating to the industrially advanced countries. B. substantially reduced foreign aid to the developing countries. C.
asked by sarah 
Civics
This table shows the member countries of the International Monetary Fund with the top 10 per capita GDPs in the world as of 2010: Country GDP per capita Qatar $88,222 Luxembourg $81,466 Singapore $56,694 Norway $51,959 Brunei $48,333 United Arab Emirates
asked by Paris 
Maths
Insert a rational number between 3.413 and 4.314
asked by Yoga 
Math
Derive this identity from the sum and difference formulas for cosine: sinasinb=1/2[cos(ab)cos(a+b)] Start with the righthand side since it is more complex. Calculations: _____ _____ _____ Reason: _____ _____ _____
asked by Don'tknowtrig 
Physics
A polar satellite is launched at 850 km above earth.find its orbital speed
asked by Hifza ijaz 
LA
List some important ideas that Walk Two Moons includes. Why did you choose those ideas? Please help me with this; I don't really want any links; I really need help with this.
asked by io 
computer
In Word tables, you can use either manual or automatic settings to define __________. (Select all that apply.) row height column width text paragraphs heading rows A,B,D?
asked by Bri 
Math
There are 100 students in a class. It is found that 60 students study Mathematics, 45 students study Physics and 35 students study Chemistry. Moreover, 20 students study Mathematics and Physics, 15 students study Physics and Chemistry, 25 students study
asked by Omkar 
Trignometry
prnt.sc/jnp0iz PLEASE HELP ME!!!!!
asked by Don'tknowtrig 
English
1. He will go back to Geneva next year. 2. He will return to Geneva next year. 3. He is going to go back to Geneva next year. 4. He is going to go back to Geneva in ten years.  Does #1 mean #2? What about #3? Is #1 similar
asked by rfvv 
algebra
A recent survey of 300 television owners compared their television viewing habits before and after getting a DVR recording device. The circle graph to the right shows the data from the survey. Find the total number of people who say they watch less
asked by Brandon 
English
1. The committee has ten members. 2. The committee have ten members. [Which one is grammatical? Are both okay?] 3. My family is all very well. 4. My family are all very well. [Which one is grammatical? ] 5. His family lives in London. 6. His fmaily live in
asked by rfvv 
English
The plural forms of knife, wife, leaf are knives, wives and leaves. However, the plural forms of reef, chief and grief are reefs, chiefs and griefs. Do you have any rules about making plural forms? How come the plural forms are different?
asked by rfvv 
Trig
How would you show that sin(x+pi)=sin x? I’m not sure how to start so if someone can tell me how to start it I should be able to do the rest.
asked by Danny 
Math
How do I find the area of a trapezoid?
asked by Emily 
Math
__________ tax is a tax calculated on the subtotal of your bill. Sales *** Credit Income To find just the tax amount of a given subtotal, you would ___________________. multiply by the sum of one and the sales tax rate multiply by the sales tax rate ***
asked by Anonymous 
Math
How do I find the area of a triangle?
asked by Emily 
maths
trancate the number 709.398 to 1 d.p
asked by greggory 
Calculus
Let f(x)= (x^2 4)/(x2) and note that lim as x approaches 2 , f(x)=4. For each value of E, use a graphing utility to find all values whenever 00, make a conjecture about the value of delta S that satisfies the preceding inequality. How would you do this
asked by Don 
math
Division question John pays 45 dollars months (30 days) for a membership. what is the cost in one day? I don't know if you 45/30 or 30/45 can someone explain it to me
asked by Jessica 
Math
Okay, we just got the question 11y13>42. I just got y>5. Is this right? If not can someone plz explain!
asked by Rowan 
Social Studies
Discuss the relationship between institutions (banks, business firms, government agencies, and unions) when it comes to making up an economic system. I couldn't find anything in google or my textbook, and if a full answer is cheating maybe just a little
asked by Sandy 
English
posted by rfvv Sunday, May 20, 2018 at 9:57pm 1. On Saturdays, he goes around the city and takes pictures with his camera. 2. On Saturdays, he goes about city and takes pictures with his camera. 3. On Saturdays, he goes ______ the city and takes pictures
asked by rfvv 
Math(Prealgebra)
Ok, my question is ‘ last year the price of a certian computer was 150$ more than it is now. This year's price is 3/4 of last year's price. How much does the computer cost this year?‘. Can someone explain to me how to create an equation for this?
asked by Mac 
Math
Thank you Reiny for the last question! :) If you or anyone else could help me with this other question, I'd really appreciate it! Use the trigonometric subtraction formula for sine to verify the identity: sin(pi/2x)=cosx Caluculation:   
asked by Don'tknowtrig 
Math
Can a quadrilateral be inscribed in a circle if degree measures of its three consecutive angles are: a) 700, 800 and 1900; b) 300, 900 and 1500; c) in the ratio 3 : 7 : 2? Thank you in advance for your help.
asked by Dummy 
Physics
Your vertical spring accelerometer has a 200 g mass hanging from it. You climb aboard the roller coaster and watch the accelerometer read 0.4 g for 3 seconds while descending the first peak and then change to 1.5 g for 2 seconds while climbing the second
asked by Lena 
Math
From a part Z 60m north of X a man walk eastward to another point Y, 120m from X find the bearing of Y and X.
asked by Biola 
English
1. Tell each other your ideas or opinions. 2. Tell each other its ideas or opinions. 3. Tell each other their ideas or opinions. 4. Tell each other his ideas or opinions. 5. Tell each other her ideas or opinions. ==================================== Which
asked by rfvv 
English
1. A set of instructions that 'tell' you how to cook something [What is the antecedent of "that tell..."? Is it 'instructions' or 'set'?] 2. A set of instructions that "tells" you how to cook something [Can we use 'tells' here?]
asked by rfvv 
science
how does the natural greenhouse effect supports life on Earth.
asked by T 
Science
how does the anthropogenic greenhouse harm living organisms.
asked by T 
English
Ebenezer Scrooge’s character changes between Act 1 and Act 2 of A Christmas Carol: Scrooge and Marley. In an essay, describe these changes and analyze how events in the plot shape Scrooge’s character. Include details from the text in your essay.
asked by Lindsay 
computer
Select the statement that accurately describes why the Italics function is being used in the sentences below. Memories would come at the most unexpected moments. For instance, Miranda never looked at Racing 'Til Dawn anymore because it was too painful. She
asked by Bri 
English
1. The club will perform at the school festival next month. 2. The club will perform in the school festival next month. [Which preposition do we have to use, in or at?] 3. He will take his new hobby with him. 4. He will take his new hobby with himself.
asked by rfvv 
vectors
A 35kg trunk is dragged 10 m up a ramp inclined at an angle of 12º to the horizontal by a force of 90 N applied at an angle of 20º to the ramp. At the top of the ramp, the trunk is dragged horizontally another 15 m by the same force. Find the total work
asked by luke 
math
jcpenny sells loafers with a markup of $40.If the markup is 30% on cost what did the loafers cost jcpenny
asked by pauline 
math
Fupi used 0.2 of his salary,sh 32,800 per month for school fees,quarter of the remained amount,he deposited at the bank and the rest amount used for other expenses.How much was used for other expenses? #Please guys help me this question?#
asked by kelvin 
Chemistry
Conc sulphuric acid has a density 1.9gm\mland is 99%h2so4by weight.calculate the molarity of h2so4 in this acid
asked by mohit 
science
Please someone answer this question for me .If you want to work in the lab what were you trying to demonstrate............... Thanks
asked by sam 
Social Studies
How did Muslims build the successful Arab empire?
asked by io 
English
1. He took a picture of the city. 2. He took one picture of the city. [Does #1 mean #2?] 3. He likes taking pictures with his camera. [Is "pictures" in generic use?] 4. He took pictures of the city. 5. He took some pictures of the city. [Does #4 mean #5?]
asked by rfvv 
english
Which of the following figures of speech uses words such as like or as to make a direct comparison between to dissimilar things? A. Simile B. Cliché C. Metaphor D. Personification
asked by brandi