# hal

Popular questions and responses by hal
1. ## physics

A sports car moving at constant speed travels 120 m in 5.1 s. If it then brakes and comes to a stop in 4.0 s, what is its acceleration? Express the answer in terms of g's, where g = 9.80 m/s2. (Take the positive direction to be the direction of travel.)

2. ## Math

A swim team consists of 7 boys and 5 girls. A relay of 4 swimmers is chosen at random from the team members. What is the probability that there are 3 boys on the relay team given that there is 1 girl on the relay team. Express your answer as a fraction in

3. ## chemistry

What will be the final temperature of the water in an insulated container as the result of passing 5.00 g of steam [H2O(g)] at 100.0°C into 195.0 g of water at 20.0°C? (?H°vap = 40.6 kJ/mol H2O) The best way to do these problems is to make the heat

4. ## Language

What can you infer about Anna in Anna secret wish

5. ## Algebra

A map of Utah has a scale of 1 cm:30 mi. The border of Utah and Wyoming measures about 3.7 cm. How long is the actual border of Utah and Wyoming? Round the answer to the nearest 10 miles. I think it's 110 mi. Am I right?

6. ## chemistry

? [H3O+] in 0.15 M C2H2H8 and 0.35 M C2H2H9Cl

7. ## Algebra

In 8 months, 55.6 gallons were used. Find the unit rate. Is the answer 6.95

8. ## chemistry

Re-post ? [H3O+] in 0.15 M C2N2H8 and 0.35 M C2H2H9Cl; Kb= 4.7 x 10^-4

9. ## Geography

Which group in Chinese society not given equal education and job opportunities. A the wealthy. B women. C men. D. Buddhist

10. ## Algebra

The sides of a square are increased by a scale factor of 6. The perimeter of the smaller square is 10 ft. What is the perimeter of the larger square? Is 60 Ft Correct?

11. ## Chemistry

Calculate the hydronium and hydroxide concentration of a solution made by mixing 100 mL 0.020 mol/L NaOH and 25.0 mL of 0.040 mol/L HCl. I'm having trouble knowing where to start with this question.

12. ## Math Help

The length of Joe's rectangular garden is 1 meter less than twice its width, and its area is 120m^2. Find the dimensions of the garden by setting up a quadratic equation and define its variables.

13. ## physics

A 45 kg boy is holding a 12 kg pumpkin while standing on ice skates on a smooth frozen pond. The boy tosses the pumpkin with a horizontal speed of 2.8 m/s towards a 37 kg girl who catches it. The girl is also wearing ice skates. What are the final speeds

14. ## algebra

Could you show me how to do these math systems and show your work so i understand how to do them. 1) 3x+2y+4z=19 2x-y+z=3 6x+7y-z=17 2) 5x+8y+6z=14 2x+5y+z=12 -3x+6y-12z=20 3) x^2+2xy-2y^2=-11 x^2+xy-2y^2=-9

15. ## Algebra 2

The problem is 3x^2 - 26 + 35 (We have to factor it!) So, I did the problem, but I'm not sure how to write the final answer. This is what my problem looks like so far: 3x^2 - 26 + 35 (3x^2-21x)-(5x+35) 3x(x-7)-5(x+7) and this is where I have the problem. I

16. ## chemistry

Calculate the equilibrium constant at 25 C for CH4 + 2 H2O --> CO2 + 4H2 given: delta G for CH4 = -50.81 H2O = -228.6 CO2 = -394.4 H2 = 0

17. ## Chemistry

How much sodium carbonate is needed to precipitate nickel sulfate

18. ## Chemistry

How much sulfuric acid is neede to dissole 200 pounds of nickel powder

19. ## Social Studies

Where was the first civilization? What was the region called then and now?

20. ## calculus

Consider line segments which are tangent to a point on the right half (x>0) of the curve y = x^2 + 1 and connect the tangent point to the x-axis. If the tangent point is close to the y-axis, the line segment is long. If the tangent point is far from the

21. ## calculus

Consider line segments which are tangent to a point on the right half (x>0) of the curve y = x^2 + 1 and connect the tangent point to the x-axis. If the tangent point is close to the y-axis, the line segment is long. If the tangent point is far from the

22. ## english

explain which groups of people make up the "britons" and anglo-saxon culture in beowulf

23. ## Pre-Cal

(-2,1) and (2,1) Passes through (5,4) What is the standard form of the equation of the hyperbola?

Can someone help me unscramble this Spanish word: sssatlfrieeu'

25. ## Geometry

What is the surface area of a right prism that has these dimensions? Base- 11" x 15 " Back- 10" x 15" Front-?

26. ## Dynamics

A series of small packages are being moved by a thin conveyor belt that passes over a 300-mm radius idler pulley. The belt starts from rest at time t=0 and its speed increases at a constant rate of 150mm/s^2. Knowing that the coefficient of static friction

1. ## Algebra 1

The answers as of 2019 are: 1. D which is 21 2. C which is 201.6 3. B which is 3/4 4. A which is 1/4 5. B which is 200 (Awnsers is correct but I'm including it again for future kiddos whos letter choices might change up.) Also good luck in school guys yall

posted on November 1, 2019
2. ## Algebra

posted on May 23, 2019
3. ## Pre Algebra

1. B 2. D 3. B 4. D 5. D 6. C 7. A 8. A 9. D 10. C 11. A 12. B 13. A 14. C 15. D 16. D 17. C 18. C 19. A 20. A 21. A 22. 16X+5. 4X+5. Blue 53 pink 17 23. Eden is correct

posted on May 8, 2019
4. ## L.A. The Giver!

1. D 2. C 3. B 4. C 5. A

posted on May 4, 2019
5. ## MATH

1. B 2. D 3. C 4. C 5. C 6. C 7. B 8. A

posted on May 4, 2019
6. ## Science

Np guess here to help

posted on May 3, 2019
7. ## Math check

1. C 2. B 3. D 4. A 5. C

posted on May 2, 2019
8. ## Math

1. A 2. C 3. A 4. B 5. C 6. D 7. A 8. D 9. C 10. A 11. D 12. A and D 13. B

posted on April 30, 2019
9. ## Social studies

1. A 2. D 3. C 4. B

posted on April 30, 2019
10. ## social studies

1. B 2. B 3. C 4. B 5. B 6. A 7. C 8. B 9. BandC 10. C

posted on April 30, 2019
11. ## math ~dont know all but check some~ pls help!!!

1. B 2. C 3. B 4. A 5. A 6. C 7. D 8. B 9. C 20. Essay

posted on April 29, 2019

1. D 2. B 3. A 4. C 5. C

posted on April 29, 2019
13. ## Social studies

1. D 2. B 3. A and D 4. A 5. B

posted on April 29, 2019
14. ## math

1. B 2. D 3. B 4. A 5. D Unit 6 lesson 1

posted on April 25, 2019
15. ## SS

1. D 2. A 3. B 4. B 5. C

posted on April 25, 2019
16. ## The Giver

1. C 2. A 3. A

posted on April 24, 2019
17. ## L A

1. B 2. C 3. B 4. B 5. A 6. D 7. C 8. A 9. A and C 10. B 11. Essay

posted on April 24, 2019
18. ## Language arts

1. A 2. A 3. D 4. C

posted on April 24, 2019
19. ## Social Studies 8

1. A 2. C 3. B 4. A 5. D

posted on April 23, 2019
20. ## History Ms sue

KpoplsAwful is correct !!

posted on April 23, 2019
21. ## LA the giver chapters 1-2

1. B and D 2. C 3. B 4. D

posted on April 21, 2019
22. ## English Ms Sue Help

1. C 2. A 3. A

posted on April 21, 2019
23. ## Language Arts

1. B and D 2. D 3. C and D 4. Essay 5. C 6. B 7. A 8. B 9. B 10. A 11. D 12. C 13. A 14. A 15. A Iowa CA

posted on April 21, 2019
24. ## Science

Thank you guys!!! I know im correct!!

posted on April 15, 2019
25. ## English

1. D 2. PartA-A. PartB-C 3. PartA-C. PartB-D 4. B 5. PartA-D. PartB-A 6. C 7. A 8. A 9. C 10. A 11. D 12. C 13. D 14. A

posted on April 14, 2019
26. ## Math help

1. C 2. B 3. B 4. D 5. C 6. A 7. B 8. D

posted on April 14, 2019

1. C 2. D 3. D 4. C

posted on April 14, 2019
28. ## Social studies 7

1. A 2. D 3. C

posted on April 14, 2019

1. A 2. A and C 3. A

posted on April 14, 2019
30. ## S.S

1. C 2. C 3. A ,4. B 5. A 6. B 7. C 8. C 9. A 10. B

posted on April 14, 2019
31. ## Math

1. B 2. C 3. B 4. B

posted on April 11, 2019
32. ## social studies

1. D 2. A 3. D 4. A 5. C and D 6. A 7. C 8. D 9. C 10. D 11. B 12. C 13. D 14. C 15. C 16. B 17. C 18. C 19. C 20. C 21. B 22. B 23. C 24. D 25. B 26. D 27. A 28. C

posted on April 11, 2019
33. ## Economics

1. D 2. C 3. D 4. D 5. C 6. B 7. B 8. D 9. B 10. C 11. A 12. B

posted on April 11, 2019
34. ## Social Studies

1. A 2. A 3. C 4. B 5. A

posted on April 6, 2019
35. ## language arts

1. A 2. A 3. C 4. B 5. D

posted on April 6, 2019

1. A 2. C 3. D 4. C 5. D

posted on April 6, 2019
37. ## math

1. C 2. C 3. A 4. B 5. D

posted on April 6, 2019
38. ## Social studies

1. D 2. D 3. C

posted on April 4, 2019
39. ## S.S.

1. B 2. B 3. A 4. D

posted on April 4, 2019
40. ## math

1. B 2. C 3. D 4. A

posted on April 1, 2019
41. ## Algebra

Unit 5 lesson 1 1. C 2. B 3. C 4. B 5. D

posted on April 1, 2019
42. ## Algebra

Unit 5 lesson 1 sequences 1. C 2. B 3. C 4. B 5. D

posted on April 1, 2019
43. ## Math

1. A 2. C 3. A 4. B 5. D 6. D 7. D 8. B 9. B 10. C 11. A 12. A 13. D 14. A 15. B 16. A 17. C 18. B

posted on March 31, 2019
44. ## Science Help Plzz

Morgan all correct 14/14

posted on March 31, 2019
45. ## L.A

1. C 2. B 3. A 4. D

posted on March 31, 2019
46. ## Social studies

1. C 2. B 3. C 4. C 5. A 6. B 7. A,F 8. A

posted on March 30, 2019
47. ## Social Studies And Business

1. A,C 2. A 3. A

posted on March 30, 2019
48. ## history

1. B 2. A,B 3. B,C,E 4. B

posted on March 30, 2019
49. ## Science

1. C 2. B 3. B 4. D Unit 4 lesson 7

posted on March 28, 2019
50. ## science

1. C 2. B 3. B 4. D

posted on March 28, 2019
51. ## SS

1. C 2. A 3. A 4. A,C

posted on March 27, 2019
52. ## SS

1. C 2. B,C 3. B 4. A 5. B 6. C 7. B 8. A 9. B,C 10. A

posted on March 27, 2019
53. ## Social Studies

1. A,B,E 2. C 3. B 4. B

posted on March 27, 2019
54. ## Tech. Ed

1. B 2. A and D 3. A and B

posted on March 27, 2019
55. ## social studys

Germany wanted revenge from WWI because they were so harshly punished. Hitler began to occupy other countries. When he invaded Poland, France and Britain declared war. U.S. joined the war in 1942. Japan deemed itself a great nation and bombed Pearl harbor.

posted on March 26, 2019
56. ## Language Arts

1. B 2. A 3. D 4. C

posted on March 25, 2019
57. ## Language Arts

1. Part A --D Part B --C 2. Essay 3. D 4. C 5. B 6. D 7. A 8. B 9. Essay

posted on March 25, 2019
58. ## Algebra

1. C 2. B 3. D 4. Combination 5. D 6. B 7. Combination 8. B

posted on March 24, 2019
59. ## Math

1. B 2. C 3. A 4. C 5. C

posted on March 24, 2019
60. ## History

1. B 2. B 3. C 4. B 5. A 6. D 7. B 8. B 9. C 10. C 11. D 12. D

posted on March 24, 2019
61. ## Social Studies

1. B 2. A 3. D 4. B 5. C

posted on March 24, 2019
62. ## social studys

1. B 2. D 3. A 4. C

posted on March 21, 2019
63. ## Math: Probability

Unit 4 lesson 2 1. D 2. B 3. B 4. A 5. D

posted on March 20, 2019
64. ## science

Unit 4 lesson 4 1. A. Gamma Ray's 2. C. Microwaves 3. B. Modulate frequency 4. D. 5

posted on March 20, 2019
65. ## Language Arts

1. D 2. B 3. D 4. C 5. C

posted on March 19, 2019
66. ## Help?

1. A 2. B 3. B

posted on March 19, 2019
67. ## art

1. C 2. D 3. B 4. B 5. D 6. A 7. D 8. B 9. C 10. D

posted on March 19, 2019
68. ## Social Studies

1. A,B,D 2. A 3. D 4. C

posted on March 18, 2019
69. ## math check probability

1. A 1/6 2. A 4/6 3. B. 5/6 4. C. 1:4 5. C. 3:1 6. B. 5/8

posted on March 18, 2019
70. ## social studies

Ummm... WTF are you doing here! please tell me when your making the video

posted on March 18, 2019
71. ## Science--HELP!!

1. C 2. B 3. C 4. A 5. A

posted on March 18, 2019
72. ## Social studies

1. C 2. B 3. D 4. B 5. A 6. C 7. B 8. C 9. A 10. C

posted on March 17, 2019
73. ## Social studies

1. B 2. C 3. D 4. A 5. C

posted on March 17, 2019