1. chemistry

Examine the unbalanced equation. CH4 + O2 → CO2 + H2O What is the best classification for the unbalanced equation's reaction, and why? It is a combustion reaction because carbon dioxide (CO2) is emitted as a product. It is a synthesis reaction because O2

2. Math hw

Find all real numbers $x$ such that $3x - 7 \le 5x +9$. Give your answer as an interval.

3. Algebra

A total of 556 tickets were sold for the school play. They were either adult tickets or student tickets. There were 56 more student tickets sold than adult tickets. How many adult tickets were sold?

4. Physics

tarzan swings a vine of length 4m in a vertical circle under the influence of gravity. When the vine makes an angle of 20degrees with the vertical, Tarzan has a speed of 5m/s. Find centripetal acceleration, tangential acceleration and the resultant

5. chemistry

Examine the equation. 6CO2 + __H2O → C6H12O6 + 6O2 In order to balance the equation, what coefficient must be placed in front of H2O 4 6 12 1 please help

Robert borrowed $750 from his parents to make some repairs on his car. He promised to repay the loan by giving his parents at least$67 from his paycheck each week. Assuming Robert sticks to his promise, which of the following is not a possible scenario

Rudolph borrowed $650 from his parents to make some repairs on his car. He promised to repay the loan by giving his parents at least$76 from his paycheck each week. If x represents the number of weeks, which linear inequality represents the amount of debt

8. Algebra A (1510)

The "perpendicular bisector" of the line segment $\overline{AB}$ is the line that passes through the midpoint of $\overline{AB}$ and is perpendicular to $\overline{AB}$. The equation of the perpendicular bisector of the line segment joining the points

9. math

In Matt’s pocket there are 8 watermelon jellybeans, 4 vanilla jellybeans and 4 butter popcorn jellybeans. What is the smallest number of jellybeans that he must take out of his pocket to be certain that he takes at least one of each flavour? I think the

10. Math

Is it possible for a composite number to have more than one prime factorization? Is it possible for a number to have no prime factors? Why? Give an example of how prime factorization could be used in the real world.

11. Question

@Alex asked this question when I was on earlier: Let line l_1 be the graph of 5x + 8y = -9. Line l_2 is perpendicular to line l_1 and passes through the point (10,10). If line l_2 is the graph of the equation y=mx +b, then find m+b. I'm wondering like how

12. managerial economics

A company wants to estimate how effective different types of advertising are for promoting its products. Specifically, the company is interested in estimating the effectiveness of radio advertising and newspaper advertising. A sample of 50 cities is

13. 9th Grade Foundations of Math 1

7/3y - 8 = 111 Equations.

14. Language Arts

The author of "My Brother's Keeper", includes the line "and Jamie thought to himself, this time it must be bad" in Jamie's phone conversation with Ted in order to a. explain how Uncle Harry usually takes care of Ted. b. develop Ted as a character who is

15. Focus on the Child, Part 2

In helping infants and toddlers cope with anger, all of the following are helpful except A. preventing possible frustration. B. denying the anger. C. providing for their physical needs. D. examining how you cope with anger. my answer is d.

16. Maths

Two wires support an electricity pole. if the wires make angles of 58°and 67° with the ground and |AB|=21m, calculate the lengths of the wires

17. English

Why does Squeaky not know at first who had won the race in "Raymond's Run". A. Raymond has climbed a fence.* B. The May Pole gets in the way. C. The finish is very close. D. Mr. Pearson talks too softly. I think it's either A or C

18. Mathie mathie mathie

Find B - A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3.

19. AP Physics Springs - very confusing question

This is part of a lab with a mass attached to a spring, and the mass attached is of unknown weight. Which of the following can you measure to find one of the unknown masses? You can select more than one. a) the distance the mass stretches the spring b) the

20. Math

Five years ago, a father was 3 times as old as his son. Now, their combined ages amount to 110 years. Thus, the present age of the father is?

The "perpendicular bisector" of the line segment \overline{AB}(The backslash then over line with the {AB} means that there's a line over AB) is the line that passes through the midpoint of \overline{AB} and is perpendicular to \overline{AB}.

22. Focus on the Child, Part 2

In J. Raonald Lally's gifts for healthy brain growth, the gift of predictability is related to A. consistency. B. respect. C. safety. D. comfort. my answer is a.

23. Art

All of the following are true of Meta Warrick Fuller's "Talking Skull" EXCEPT

24. math

in a school,180 students play hockey or football.the number that play football is 5 more than twice the number that play hockey.if 15 students play both games and every student in the school plays at least one game,find:1) the number of students that play

25. Physics

tarzan swings a vine of length 4m in a vertical circle under the influence of gravity. when the vine makes an angle of 20degree with the vertical, tarzan has a speed pf 5m/s. Find the centripetal acceleration, tangential acceleration and the resultant

Using a protractor and a ruler draw triangle ABC with A=35 and AC=6 and C=65

27. History

Objectives of the Camp David Accord. Did the US improve its relationship with the Arab World?

28. furth math

in a school,180 students play hockey or football.the number that play football is 5 more than twice the number that play hockey.if 15 students play both games and every student in the school plays at least one game,find:1) the number of students that play

29. Algebra A

The "perpendicular bisector" of the line segment \overline{AB}(The backslash then over line with the {AB} means that there's a line over AB) is the line that passes through the midpoint of \overline{AB} and is perpendicular to \overline{AB}.

30. Chemistry and @DrBob222

Sorry for the mix up -- here's what DrBob222 posted for the Chm or Chemistry question: What subject is CHR? If you don't label the subjects correctly the proper tutor won't know you need help. This question can't be answered as posted. You need the

31. Math Homework That Was Due 2 Weeks Ago

A and B are constants such that the graphs of the lines 3x - 4y = 7 and 8x + Ay = B are perpendicular and intersect at (5,2). What is A+B?

32. Life orientations

What are the negative impacts of risk behaviors on, social, economic, physical and emotional mental

33. Math

Kathrina wants to buy a lot which costs 1 million pesos. She plans to give a down payment of 20% of the cost, and the rest will be paid by financing at annual interest rate of 12% for 10 years in equal monthly installments? What will be the monthly

Let line l_1 be the graph of 5x + 8y = -9. Line l_2 is perpendicular to line l_1 and passes through the point (10,10). If line l_2 is the graph of the equation y=mx +b, then find m+b.

35. English

posted by rfvv Saturday, September 2, 2017 at 2:06am. 1. I'll get you Mr. Smith. 2. I'll put you through to Mr. Smith. 3. I'll connect you to Mr. smith. 4. I'll transfer your call to Mr. Smith. (Are they grammatical and similar in meaning?) • English -

36. Engish

1. You need not have done it. 2. You need have done it. -------------------------- Are they all grammatical?

37. physics

What is the length of copper wire is required to produce a 4mohm resistor? Assume the diameter of the wire is 1mm and that the resistivity roh copper is .0000000178ohmm

38. English

1. She is on the phone, so call back later. 2. She is on the line, so call back later. 3. She is on another phone, so call back later. 4. She is on another line, so call back later. ----------------------- Are they all grammatical?

39. chemistry

What volume of distilled water should be added to 500ml of a solution of sulphuric acid to 90% by weight, density 1.81 g.mL-1, to obtain a 10 Molar solution?

40. English

Which pronouns in the selection help indicate the point of view A. My, Him, and He B. Our, He, and They C. Our, I, and Me* D. Him, He, and They

41. Geography

Georgia's north easternmost region is the A) Blue Ridge B) Coastal Plain C) Valley and Ridge D) Appalachian Plateau

42. math

How much pure anti freeze must be added to 10 gal of 10% antifreeze solution to increase its concentration to 60 % anti freeze? If X represents the number of pure antifreeze solution, what is the correct statement of the problem?

43. Geometry

JK=2x+1 KL=6x JL=81 K is between J and L. Use the Segment Addition Postulate to solve for the variable

44. English

posted by rfvv today at 8:58am. 1. You need not have done it. 2. You need have done it. -------------------------- Are they all grammatical? • Engish - Writeacher today at 9:05am 1 is okay, but 2 is not. 2 could be rephrased like this ~~> You need to

45. Economics

You decide to estimate the following quarterly sales forecasting model for new boat sales in your local county: Qt = a + bt + cD The equation is estimated using quarterly data on new boat sales in the county from the 3rd quarter of 2001 to the 4th quarter

46. Math

Graph the inequality on the numberline and then write it in interval notation. 5/3y < 10

47. English

Could you check this? Complete the questions. I wrote my answers with capital 1. WASN’T just the best concert? 2. DIDN’T you get the tickets for free? 3. DON’T you want to go out for dinner? 4. DIDN’T we come to this place last month? 5. WOULDN’T

48. College Algebra

Graph the inequality on the number line and then write it in interval notation. Y+1/2≥2/3.

49. English

Could you check this? Complete the questions. I wrote my answers with capital 1. Researchers are SUPPOSED TO BE VERY careful when working in the lab. 2. They ARE SUPPOSED TO CHECK and recheck dangerous experiments. 3. They are SUPPOSED TO THINK before

numbers

51. statistics

According to Chebyshev’s theorem, what proportion of a distribution will be with k=4 standard deviations of the mean? Show all work as to how to find this

52. Focus on the Child, Part 2

Which one of the following questions would best foster language development in a child? A. Did you ride your bike today? B. Did you see the new puppy? C. What did you do at the park today? D. Would you like strawberries with your lunch? my answer is d.

53. English

1. There is a telephone booth around the corner. 2. There is a telephone box around the corner. (Can we use 'box'? Are both okay?)

54. chemistry

Calculate how many mg of potassium hydroxy are needed to neutralize 75mg of mefenamic acid .

55. psychology

does someone know a good website that includes b.f. skinner in behavioral approach ,or just inform about him?

56. math

The distance between two towns P and Q is 390 km. John left town P at 7:30 am and travelled towards town Q at an average speed of 60 km/hr. Half an hour later Patrick left town Q and travelled towards town P at the same speed. At what time did they meet? *

57. science

How is this equation balanced Fe2o3+co

58. Science

How do you identify energy may be dissipated in such an energy conversion?

59. Math

Graph the inequality on the numberline and then write it in interval notation. 2/3a-1/4a

60. Science

What is the relationship between energy and work?

61. geometry

find the coordinate of the midpoint (7,3) (-1,-3)

62. Math

Let line l_1 be the graph of 5x + 8y = -9. Line l_2 is perpendicular to line l_1 and passes through the point (10,10). If line l_2 is the graph of the equation y=mx +b, then find m+b.

A mass is attached to a spring. When is the KE at its maximum? a) at equlibrium b) at the highest point c) at the lowest point d) after the spring has performed many oscillations and returned to equilibrium I'm not sure, since none of the choices imply

64. Spring constant physics?

What is the spring constant of Spring 1, in N/m? This is in an online lab. All I know about spring 1 is that it is 30cm long, and with a mass of 250g attached, it reaches 55cm long. My answer of 4.5 (.25 * 10 = k * .55) is incorrect...why? Thank you!

65. Math

2x^3 + x^2 - 5= 0 x=? Is this possible to solve?

66. Math

2x^3 + x^2 - 5= 0 x=? What is the process I must do in order to get the answer?

67. English

I have to complete the text. I did with capital letter. Could you check it. When I applied to university, I WASN’T PLANNING ON studying a language. While I WAS SEEING courses, I talked to a counsellor who suggested it. He said many young people WERE

thanks!

69. English

In this exercise I have to choose the best answer. Could you check them. Thanks 1. The supplies were ordered were not the ones we received. A. You should changing, suppliers. B. You ought to change supplies. C. You had better supplies. D. You might want to