# I have no idea how to do this problems can somebody help me: 1.How many mL of and oxygen gas can be produced form the termal decmpositon of 0.340 g of hydrogen peroxide at 700°C and 755 mm Hg? 401

12,308 questions
1. ## Tan^2 Integrals

I'm having a hard time understanding how to do Integrals involving tan^2. I have two problems: 1. Find the integral of (tan^2 y +1)dy 2. Find the integral of (7tan^2 u +15)du 1. My approach to it is to replace the tan^2 y portion of the problem with sec^2

asked by Anonymous on December 10, 2013
2. ## algebra homework help

student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. X= # of problems 11= # of missed problems 65% of correct

asked by jennifer on October 12, 2016
3. ## Algebra

4a-2 (less than or equal to) a + 1 (less than or equal to) 3a + 4 I'm assuming I should put this on a line, like I did with some other problems on my worksheet, right? But I have no idea how I would show 4a-2 on a line! I have no idea how to do this. Thank

asked by Harper on January 26, 2009
4. ## algebra

A student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. X= # of problems 11= 3 of missed problems 65% of

asked by jennifer on October 12, 2016
5. ## english essay stuck!

One can run from big problems but can seldom hide for long. Samantha Sweeting tried just that. When Samantha found out she had just lost her client 50 million pounds, from an overdue case sitting on her desk she was in a state of sheer panic. Samantha

asked by Kenya on January 23, 2007
6. ## math

I have no idea where to start! *A quick quiz consists of 3 multiple choice problems, each of which has 4 answers, only one of which is correct. If you make random guesses on all 3 problems, (a) What is the probability that all 3 of your answers are

asked by Emily on August 16, 2009
7. ## Algebra2(check part 1)

1)Solve the matrix:[2x] [14]for x [3y]=[12] answer=7 2)V[3 1] [0 2] [-4 5].The dimensions of matrix V. answer=3x2 3)The first row of T+U T[4 -5 2] U[-9 6 4] [8 -1 3] [-5 -2 3] answer=[-5 1 6] 4)The first row of V-T. V[3 1] T[4 -5 2] [0 2] [8 -1 3] [-4 5]

asked by erin on July 28, 2007
8. ## Math

So I know how to do these types of problems but I have a hard time figuring out how to write the equation. Mrs. Sue, if you could help I would greatly appreciate it. I really just need to know what the way to write the equation is for word problems. Thank

asked by danceroftheages on November 6, 2019
9. ## math

ok. i am becoming home schooled on the computer, and i have no idea how to do my math problems... examples 3/12 + 3/4n what do i do with the n? 9/(4xa) - 3/4

asked by chalsey on February 19, 2007
10. ## algebra

I have a few math questions I made them just like my actual problems so that I can go through the steps you have went through to answer my own problems...Again THESE ARE NOT THE REAL PROBLEMS JUST EXAMPLES LIKE MINE WITH DIFFERENT NUMBERS. I don't know how

asked by Anonymous on June 12, 2013
11. ## English

Take the subject you explored in Part 1 of Submission 2 and narrow it down so that it can be covered in one paragraph. You might use one of the two techniques below. 1. Use one incident from the Answers column of your chart to illustrate an idea. Example:

asked by Sam on April 23, 2013
12. ## To: Anonymous, Juan, Jenny

Please do not post several related questions under different names. You're also more likely to receive help if you give us an idea of your thinking on these problems.

asked by Ms. Sue on October 11, 2009
13. ## English Language

I asked this question earlier. I need to write 2 letters of complaint about problems I face at school and problems I face as a student in general but I can't find any problems, could you help me list some problems? Its really really urgent.

14. ## math: percent and fractions

Can you give me two examples of two realistic percent problems in which the percents are actually nice fractions and the numbers involved are compatible with the fractions. One problem should as for the part, given the whole and the percent. And the other

asked by Mary on April 6, 2008
15. ## Algebra

Can someone pleas give me an example of a nonlinear function with 2 inputs? I have to provide 5 problems for class and have no idea where to begin or how to set up the problem.

asked by Sam on October 6, 2010
16. ## Geometry

Picture given with problem: media.glynlyon(dot)com/g_geo_2012/12/img_geou12abc_8.gif If AC = 20, AE = 25, and AB = 5, what is the length of AD? Please explain how this is found, I've got a few problems like this and have no idea how to do it.

asked by Will on January 14, 2013
17. ## physics

Ok, so I know the different kinds of forces (applied, normal, gravity, parellel, and friction). And I know how to sub in other numbers for those forces ( for example, Parallel force is equal to mass times gravity times sine theta). I also know the "base"

asked by Julia on November 15, 2008

what are the processes in finding the main idea and where can you find the main idea? There are several articles here which discuss the "main idea" of something.

asked by klar maesen on July 3, 2007

Here's one of the questions I have problems with: cube root of (x+2)=6th root of (9x+10) A. -1, 6 B. [-13 +/- sqrt(193)]/2 C. 1, -6 D. [13 +/- sqrt(145)]/2 Please explain how to solve this. Should you cube both sides, or raise both to the 6th? and I get

asked by Jennifer on May 4, 2008

Here's one of the questions I have problems with: cube root of (x+2)=6th root of (9x+10) A. -1, 6 B. [-13 +/- sqrt(193)]/2 C. 1, -6 D. [13 +/- sqrt(145)]/2 Please explain how to solve this. Should you cube both sides, or raise both to the 6th? and I get

asked by Jennifer on May 4, 2008
21. ## Math

In a mixed number or fraction problem, you have dividing and multiplying. Now if you were given a list of multiplying and dividing mixed number and fraction word problems, how can you tell the difference between multipling and divinding word problems. It

asked by N/A on July 6, 2005
22. ## math

there's a question that I don't understand and the direction says that 'solve problems as combination integer problems.remember to rewrite all double sign problems as combination problems before solving' and here's a question 50- -61+ - 170 =

asked by allie on January 22, 2008
23. ## Algebra II

Evaluate: ƒ(2) + 5 It says to use this graph to solve the equation: h t t p://i55 . t i n y p i c . com/2qdvfur.jpg Right now we're on Algebra and Composition with Functions. I have no idea what I'm supposed to do, and there are no instructions for any of

asked by Matt on September 18, 2011
24. ## English rep of an algebraic problem

Hello, I need HEEEELP. I need to create one statement in English representing an algebraic relationship. I think I have the right idea but not to sure. Thanks Have a great day!!! Why not tell us your idea and we can help you if it is the right idea or not.

asked by Carrie on January 11, 2007
25. ## Civics

Which of the following describes the Enlightenment idea of natural law? The idea that people consent to government authority and in return the government protects their rights The idea that people are born with rights that no government can take away ***

asked by jeje on January 19, 2015
26. ## Health

Which of the following is FALSE? -Chinese American infants have the lowest mortality rate - In the United State, physicians view physical complaints from men the same as they do from women - African Americans have higher rates of hypertension and diabetes

asked by Melissa on November 19, 2008
27. ## Math

Kenneth has 22 math problems to do for homework. He has 12 problems done.How many more problems does he left?if he completes 1 problem every minute,how many more minutes does he have to work?

asked by Tanny on August 27, 2013
28. ## math

kenneth has 22 math problems to do for homeworks he has 12 problems done. How many more problems does he have left? If he completes 1 problem every minute, how many more minutes does he have to work?

asked by wonderer on October 5, 2011
29. ## Language Arts

I need help thinking of 4 small problems in our world. I have to have 4 problems, solutions attempted to those problems and a problem solving invention. I really need help please and thank you.

30. ## math

Give two examples of why having health insurance would be a good idea. What problems would there be if you didn’t have it? Sorry i can not come up with 2 examples

asked by anonymous on January 6, 2012
31. ## algebra functions

can someone help me with this and explain it to me step by step so i can try to solve the remaining problems i have I have no idea of what I am supposed to do f(x)=x^2: g(x)=x-1/x

asked by Ricki on October 15, 2013
32. ## Math (Precalculus)

I have no idea how to do these problems: Given that U and V are in Quadrant II and sinU = 3/5 and secv = -ã13/3, find: A) cos 2U B) sin (v/2) c) cos(U+V)

asked by Joe on February 7, 2008

Explain if a triangle with the given lengths is a right triangle. 1. 18, 24, 30 2. 7, 24, 25 3. 13, 14, 15 I really do not know how to solve these problems! I have no idea how!!!! Please help!

asked by Delilah on October 17, 2012
34. ## math

So I've been having trouble solving some problems. Mainly problems that look like this 5-(t+3)=-1+2(t-3) what causes problems is the 5- part. I asked my teacher for help, and he gave me a hint, which is to distribute a -1 like 5+(-1)(t)+(-1)(3) But I still

asked by katherine on October 7, 2010
35. ## Pre-Calculus

convert to the alternate form to exponential form. a) 5^4=625 b) e^x=y c) log.001=x I really need help on these problems i have no idea how to do it? pls help me i need to study for it on my exam.

asked by Lane on December 6, 2013
36. ## world history

Re: Industrial Revolution Apart from external problems including urban crowding, insanitation, pollution, and social and order problems, what may have also been (2) problems created by industrialization/urbanization during this time?

asked by hellga on February 9, 2008

What was "Manifest Destiny"? a. the idea that Americans of European descent were superior to Native Americans b. the idea that woman were destined to attain political equality with men c. the idea that America was destined to expand to cover the entire

asked by Wendy on February 26, 2014
38. ## english

1. An analogy helps clarify a complex idea by: A. presenting several definitions of the idea. B. comparing the idea with a simpler one C. breaking down the idea into smaller pieces D. pointing our a single common trait between two topics. I think it's B?

asked by melissa on April 19, 2011
39. ## human resources

1. Is recruiting nurses abroad a good idea for US hospitals with worker shortages? 2. Are there any cultural problems US hospitals might encounter as a result of this practice?

asked by China on December 23, 2008
40. ## 9th Algebra

Im in 9th grade algebra. and we are learning adding and subtracting real numbers. im stumped on a couple of problems. I get confused when i see the absolute value lines. Does that change the munber? Do i just go on with the problem as if they werent there?

asked by Amanda on August 25, 2009
41. ## comparing fractions

A third grade class was given a multiplication quiz. The quiz had 10 problems. Any correctly answered 6 problems, Bobby answered 7 problems correctly, Tom answered 9 problems correctly, and Sue only answered 2 problems correctly. A. What fraction of the

asked by Emma on December 4, 2016
42. ## Algebra 2 Honors

Hey, we recently started a topic in class that I don't understand well, I just want to post 6 of the problems and ask if they're right or not (some of them I have no idea how to do). 1. If a varies directly as b and b = 18 when a = 27, find a when b = 10.

asked by Ryan on May 13, 2015
43. ## sociology

i'm reading a short excerpt from C.Wright Mills book The Sociological Imagination, and i have no idea when he writes this: No social study has completed its intellectual journey until it comes back to the problems of biography, of history, and of their

asked by y912f on July 18, 2009
44. ## college psychology

Which of the following is FALSE? -Chinese American infants have the lowest mortality rate - In the United State, physicians view physical complaints from men the same as they do from women - African Americans have higher rates of hypertension and diabetes

asked by Michele on November 19, 2008
45. ## history

Several US leaders wanted no part in imperialistic practices. Why did these officials think imperialistic policies were such a bad idea? What were a few big problems they saw with conquering foreign lands? HELP ME PLS!!

asked by o on January 16, 2019
46. ## math

matthew got 36 problems right out of a total of 40 problems on a test. What percent of the problems did he get right?

asked by Michelle on November 14, 2010
47. ## Math

I am having problems understanding how to solve problems like the following: a2 + b2 = c2 Please help me where I can understand solving problems such as the one above.

asked by Jasmine on March 30, 2009
48. ## algebra 1

Can someone please help me with this inequality problem -3-8>(4x+8)-8 I have no idea how to solve this problem but I would like to learn. Can you be kind to show me the steps so that I can use this as an example problem for other problems. Thanks!

asked by thawk on November 17, 2010
49. ## English

I have to write an essay on second hand lion about an important idea in the film and why it is a worthwhile idea in the film. I want to do the importance of the past because of the flash backs do you think this is the right idea and if so what should my 3

asked by Aryaman on July 26, 2011
50. ## opinon

I mean seeing professors to get help. Yes. Frankly I think it is a good idea to go to each one and introduce yourself if you have not done so. A very short social visit (short meaning a couple of minutes). Now for help. Yes go see them, you may not get the

asked by deek on December 3, 2006
51. ## Science-Physics

The metre was originally defined as a fraction of the distance from the North Pole to the equator. What problems would this definition of the metre create for people? Would some problems be the long calculation? I can't really think of other problems.

asked by Anonymous on November 6, 2010
52. ## Statistics-Probability

An instructor will choose 3 problems from a set of 7 containing 3 hard and 4 easy problems. If the selection is made at random, what is the probability that only the hard problems are chosen?

asked by Steven on February 5, 2013
53. ## algebra

janice noticed that the number of problems she did for homework (x) formed a linear relationship with her quiz score (y). When she did 3 problems she earned a 25% and when she did 8 problems she earned a 60%. Write an equation to represent this situation.

asked by andrew on January 20, 2010
54. ## math

in the addition problems below each leter represents the same digit in both problems. Replace each letter with a different digi, 1-9, so that both addition problems are true.(there are two possible answers.) A B C A D G +D E F +B E H ------ ------ G H I C

asked by kenzie on August 23, 2007
55. ## Precalculus

Hello, Thanks for all of the help guys. I really appreciate it. I was woudnering if you could show me how to do this step by step and the thought process that goes through your head while you do this. This way I will be able to try to solve some of these

asked by Kate on January 5, 2010
56. ## english

Click on the box to choose whether each sentence restates the key idea expressed in the key sentence. Key Idea: When hot weather arrives and the nation takes to the outdoors, mishaps multiply. Drowning is the fourth most frequent cause of accidental

asked by ty on March 1, 2013
57. ## Algebra

Here is the problem: A two-digit number is eight times the sum of its digits.When the number is added to the number obtained by reversing the digits,the sum is 99. Find the original number. Please explain hot to solve it and it would help a lot to if you

asked by Anonymous on May 31, 2010
58. ## Algebra

Here is the problem: A two-digit number is eight times the sum of its digits.When the number is added to the number obtained by reversing the digits,the sum is 99. Find the original number. Please explain hot to solve it and it would help a lot to if you

59. ## English

Noun means a person,place thing or idea. List 3 things for each. Person: teacher,doctor,nurse Place: park,school,store Thing: pen,notebook,book Idea: I need help with the idea Please help Thank you! idea: Peace, tranquility, hope, love, hatred. Ideas might

asked by Muskan on December 18, 2006
60. ## algebra functions

can someone help me with this and explain it to me step by step so i can try to solve the remaining problems i have I have no idea of what I am supposed to do For each problem, construct two composite functions, . Evaluate each composite function for x=2.

asked by Ricki on October 16, 2013
61. ## Tecnology

Alex works at his computer for several hours a day. He is careful to sit up straight at the computer with his feet on the floor and to keep his muscles relaxed, and stays off his computer after 6 p.m. For what kind of computer-related health problems is

asked by HELP ASAP on January 21, 2016

A student got 80 percent problems correctly which is 32 problems correct. how many problems are they in total? I got 40 in a page but it did not explain can you PLEASE EXPLAIN!!!!

asked by Jenniferlove on March 28, 2016
63. ## Algebra 1

"Solve each system algebraically. Identify each system as cosistent and dependent, cosistent and independant, or inconsistant." my teacher didn't go over this in class and i have no idea what it means! here are the problems: #1) 2f+3g=11 f-g=(-7) #2)

asked by Mel on February 16, 2009
64. ## math

How can I find the restrictions on the domain for this problem: f(x)=1/x. I have no idea how to find the range and domain for problems written like this.

asked by Anonymous on April 2, 2008
65. ## Mathematics

Maria answered all the problems on her math test. She answered 80 percent of the problems correctly. If she answered 6 problems incorrectly, how many problems were on the test?

asked by Willie on July 19, 2012
66. ## Biology

In which case would a widely accepted scientific idea MOST likely be revised? A) when an error is found in a previous calculation B) when scientists calculate a quantity with greater accuracy C) when several well-tested findings go against the accepted

asked by Rafa on June 19, 2015

What types of problems can be solved using the greatest common factor? What types of problems can be solved using the least common multiple? Complete the explanation. *** Use the words 'same' and 'different' to complete the following sentences.*** Problems

asked by Sam on September 11, 2014
68. ## Math

CAN SOMEONE CHECK MY ANSWERS PLEASE? What types of problems can be solved using the greatest common factor? What types of problems can be solved using the least common multiple? Complete the explanation. *** Use the words 'same' and 'different' to complete

asked by Sam on September 11, 2014
69. ## history

The romantic movement drew upon the idea that a. all social change should be motivated by religious faith. b. only love could solve social problems. c. reason, not emotion, should motivate true art. d. each individual brings a unique perspective to the

asked by jjj on April 9, 2014
70. ## Guidance and Discipline Question

Focusing on the person and their strengths and abilities is a way adults and children can help a child with ____________ adjust to the classroom. 1. special needs 2. behavior problems Wouldn't it be special needs? I am confused, because my friend says I am

asked by Melody on January 12, 2007
71. ## Webshop

Hello there I am lacking an idea/ideas to write my entrepreneurship hand in report. It doesnt have to be a great idea but useable idea/s that can fits canvas model....if any of you have one, write it down and few reason why you think it is great. Thanks

asked by entrepreneurship on March 3, 2016
72. ## Math

Matthew got 36 problems rights out of a total of 40 problems on a tes.wht percent of the problems did he her rights

asked by Anonymous on November 2, 2017
73. ## chemistry

i know the formula FC = # Valence Electron - bonds - lone pairs but am i supposed to use that formula for all elements on the problems for instance the teacher did this example :O: || C / \ O FC: 6-2-4=0 CFC: 4-4=0 I have no idea where the numbers came

asked by jessie on January 30, 2011
74. ## American Government

Describe the problems that surfaced under the Articles of Confederation (8-10 problems we discussed in class) soon after the Revolutionary War. Use these problems and give a brief overview of Article I, II, III, IV, V, VI and the Bill of Rights of the U.S.

asked by Mike on October 21, 2009
75. ## social studies

i am studying about palestinia and israel i have to write 8 bullets notes on what are the problems of the palestians and israel in the middle east. I don't understand the problems going on over there is there a website for my age 12 to understand this

asked by marko on April 21, 2012
76. ## english

WRITE AN ARTICLE FOR A SCHOOL MAGAZINE IN WHICH YOU HIGHLIGHT THE ADVANTAGES AND DISADVANTAGES OF THE PROPOSED SCHEME [HAVING A SCHOOL COURT]: Fellow students! Big changes are on the horizon. Our headteacher, Mrs Rodriguez, has finally decided to tackle

asked by Zaki on March 28, 2012
77. ## algebra homework help

A student missed 3 problems on a Physics test and received a grade of 94%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. my answer is 5 questions

asked by jennifer on October 12, 2016
78. ## the big idea of energy

i have to do an assesment about sound. i have to include the big idea of energy. i have no clue what it is! HHEELLPP MMEE!! What do you mean when you say "the big idea of energy"? I know that sound is created by vibrations, but I'm not sure that's exactly

asked by Anon on December 5, 2006
79. ## math

a student answered 86 problems on a test correctly and recieved a grade 98%.How many problems were on the test, if all the problems were worth the same number of points? (Round to the Nearest whole number.)

asked by kj on October 1, 2019
80. ## Math

Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5 days how many problems will she have left to work on day 6?

asked by Valerie on March 21, 2016
81. ## the big idea of energy KS3

what is the big idea of energy? To A. Einstein, it was that Energy and Mass are equivalent, and that the sum total of both, with a factor called entropy, is constant in the universe. what is the big idea of energy i need help on finding out what the big

asked by blue babe on October 22, 2006
82. ## Social Studies

Which of the following did the populist party believe would solve U.S economic problems? A)currency reform*** B)saving Banks C)new policies on Native Americans D)renewed immigration policies ~I can't really type this because passage but the next thing it

asked by Nawa101 (ANYONE HELP) The Labor Movement Quiz on January 22, 2018
83. ## Math

You were assigned 20 practice problems. You completed 5 problems. What fraction of the assigned problems do you have left?

asked by Javier on December 6, 2018
84. ## Physics

1) On the construction site an electric crane is used to lift materials to the 10th floor. A 180 kW motor requires 2.0 minutes to lift a 10500 kg load if bricks 218 m. How efficient is the crane? 2. Burning 1.0 kg of coal releases 33 MJ of energy. This

asked by Lucina on December 31, 2014
85. ## math help

Thank you for helping me with the last problem Reiny and Bosnian. However, I have one more problem that I need help with please and I have no idea how work the problem. I used an on line calculator to get the answer. It didn't give an explanation on how to

86. ## algebra homework help

A student missed 8 problems on a Chemistry test and received a grade of 47%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. My answer is 15 question were on the test is this

asked by jennifer on October 12, 2016
87. ## math

A ball is thrown vertically upward with an initial velocity of 5 ft/sec from a height of 20 feet. Which function models its motion? i literally am lost and have no idea how to this problem. if i could have help with the steps on how to do the problem and

asked by Natalie on November 21, 2014
88. ## history

I need 4 causes of Taft's problems in office. I have tariffs and coservation but I need 2 more. The Antitrust suits that Taft supported brought about the antagonism of big business reformers. On an international level, he had problems when US support went

asked by Anonymous on November 30, 2006
89. ## Developmental Psychology

There are a number of ways that emotional or psychological problems can develop in children. Problems can result from anything that disrupts a child's sense of safety and security. This could include things such as an unstable or unsafe environment,

asked by Angel on July 26, 2010
90. ## English

Hi for my english class, we have to make an invention using cheap material that is useful, original, and provides a solution to a problem. We actually have to show the class like a prototype of it and I have no idea what to do! Mines on tuesday and I'm so

asked by John on December 5, 2010
91. ## math

Mike completed 19 math problems before dinner for tonight’s homework, and he completed x problems after dinner. Write an expression to determine the total number of problems he completed.

92. ## Math

how do you do these problems?? 5-26 2-2/9 8-2/3 4/3+6 But I can do these types pf problems ( don't need help with problems below) 3/4 + 1/10 and 5/6 - 1/4 Please Help!! Thanks!!!

asked by Erin on December 2, 2010

how do you do these problems?? 5-26 2-2/9 8-2/3 4/3+6 But I can do these types pf problems ( don't need help with problems below) 3/4 + 1/10 and 5/6 - 1/4 Please Help!! Thanks!!!

asked by Erin on December 2, 2010
94. ## Environmental Science

1. How has the size and location of big cities changes since the year 1900? 2. Describe the major problems in today's large cities and the cause of these problems. 3. What can be done to help solve these problems? 4. You may never live in a big city, but

asked by lisa on February 24, 2010

Identify a problem at work or organization to which you belong. Conduct research that would help your workplace or organization solve this problem, or attend some relevant training or workshop that would provide you with such information. Can you give me

asked by Sardar on July 27, 2007
96. ## Calc III

Hello, Can somebody help me with the following two problems? 1. Find a value of a such that the vector makes an angle of 45 degrees with the vector or show that no such a exists. ---I started by using theta = arccos (u*v)/(absu*absv) must equal (sqrt2)/2

asked by Em on November 26, 2007
97. ## Algebra 1 Inequalities (help)

So, I'm kinda confused, How would I solve 1c < 400, I'm trying to go back, and practice my Inequalities, and I kinda forgot how exactly to solve them.... And I don't want to give any of my actual problems so I just created this one off the top of my head,

asked by Ronny on October 23, 2017
98. ## Algebra 1

Terry has completed 15 homework problems, and Susan has competed 9. Terry is completing 10 problems per hour and Susan is competing 12 problems per hour. After how many hours will terry and susan have completed the same number of problems ??

asked by Sierra Elizabeth on January 4, 2016
99. ## socials

problems associated with Rwanda (migration) - internal, external i think problem be that some people be poor so they get health problems (diseases)parents not able to feed kids. environment problems, water polluted, forests suffer trees get cut down.