# Questions Asked onMarch 2, 2018

1. ## physics

If α = 40°, β = 60°, and M = 4.0 kg, determine the tension in string 1 & 2. -------/ / 1 /2 / . . . Blockmass Alpha is on the top left angle and Beta is on the top right angle.

2. ## math

which list shows number ordered from least to greatest? a. -1.5, -3.0, -7.1 b. -2.5, -1.0, -1.2 c. -3 3/4, -2 1/4, -1 1/8 d. -3/4, 1 3/4, 1

3. ## History

1. What is a reason that the Missouri Compromise did not have lasting effects? A. It only applied to the lands of the Luisiana Purchase B. It only applied to the lands of the Mexican Cession C. It relied on popular sovereignty D. It limited the number of

4. ## Chemistry

7. 2Sr + O2  2SrO a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent 8. 2Cs + Br2  2CsBr a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent

5. ## Math

compare the parent function f(x)=x^2 to the quadractic function f(x)=-2x^2-6. the 6 in the function does which of the following? a.it makes the graph narrower than the parent function. b.it makes the graph wider than the parent function. c.it causes the

6. ## Pre-Calc

A polynomial function f(x) with real coefficients has the given degree, zeros, and solution point. Degree: 3 Zeros: -2,2+2√2i Solution Point: f(−1) = −68 (a) Write the function in completely factored form. (b) Write the function in polynomial form.

7. ## English

Which of the following should you do to make your argument effective? Answers: Compare the opposite side's views to something unpleasant. Include only general details the audience will understand. Use specific details to refute the opposite side's views.

8. ## Math

Suppose a small cannonball weighing 16 pounds is shot vertically upward with an initial velocity Vo = 300 ft/s . a) Construct the mathematical model. b) Suppose air resistance is ignored, determine the velocity of the cannonball at any time t. c) Using the

9. ## I need help- Math

If a dozen eggs cost \$1.35, what is the unit cost? A) \$0.11**** B) \$0.13 C) \$1.23 D) \$4.29

10. ## English

Choose the word that best describes the italicized word from the novel Frankenstein. 1:A young man met her, whose countenance expressed a deeper(despondence). A:Fury B:Exuberance C:Serenity D:Sorrow*** 2:Which of the following best supports Victor's role

11. ## Calculus

Use the information to evaluate and compare Δy and dy. (Round your answers to three decimal places.) y = x4 x = 1 Δx = dx = 0.1 I'm totally lost

12. ## Chemistry (mol)

Xe+3F_2=XeF_6 How many mol of xenon hexafluoride are produced from 4.01 x 102 mol of fluorine (F2)?

13. ## Math

Using a standard deck of 52 cards how many 5 card hands contain A. 2 queens? B. 3 fives? C. At most 2 sevens? D. One pair and one three of a kind?

14. ## Math

A pizza company has 15 toppings to choose from A. One topping is anchovies. How many different 3 topping pizzas do not include anchovies? B. There are 6 vegetable toppings. How many different 3 topping pizzas have no vegetables? C. How many different 3

15. ## Math

If you add the denominator to both the numerator and denominator of a fraction, you get a new fraction that sometimes is larger than the original fraction. Find a fraction where the new fraction is four times as large as the original fraction after you add

16. ## Trigonometry

The number of hours of daylight in a city in the northern hemisphere shows periodic behavior over time. - The average number of daylight hours is 12 - The maximum number of daylight hours is 14.4 - The period is 365 days - The day with the least sunlight

17. ## English

1. He is an uncle on my mother's side. 2. He is my maternal uncle. [Can we use both expressions? Are both okay and the same? Which one is commonly used?] 3. He is an uncle on my father's side. 4. He is my paternal uncle. [Can we use both expressions? Are

18. ## History

What was the primary goal of the Dawes Act? A. to provide farms for Native American families B. to preserve reservations for Native Americans C. to protect Native American cultures D. to encourage Native Americans to become farmers

19. ## SS

Customers cannot purchase every product. How does this fact affect companies that make products? A. They increase costs to make up for low sales. B. They decrease quality to make up for low sales. C. They provide better value so that customers choose their

20. ## English

Imagine your friend's cousin writes a rebuttal argument to her claim in favor of teens owning smartphones. Read his argument excerpt and answer the question that follows: Smartphone ownership among teens is certainly on the rise. Yet there is reason for

21. ## English

I have 3 more questions that I'm confused on. 1. Read the argument excerpt related to teen use of smartphones and answer the question that follows: People on either side of the smartphones-for-teens debate can't agree on the evidence. Sure, there's proof

22. ## Math

In a given city there are 28 reporters of which 16 are men. If the committee of 4 reporters is to be formed A. How many different committees can be formed? B. How many different committees contain 3 men? C. How many different commitrees contain at least 2

23. ## Math

1) Stephanie earned \$x while working 10 hrs. Evelyn earned \$y while working 29hrs. If they both earn the same hourly wage and x+y=60, how many dollars did Stephanie earn? 2)the difference of the areas of two circles is 21pi. If their radio are r+3 and r,

24. ## Physics

A disk of radius 0.4 cm and mass 0.7 kg is rotating at 5 rad/s. A second disk of radius 0.5 cm and mass 0.85 kg is rotating at 6 rad/s in the other direction. What is the combined angular velocity of the disks when the second disk is placed on top of the

25. ## Calculus

Determine whether the series from 0 to infinity of cos(nπ)/(n + 3) converges conditionally or absolutely. A. The series diverges. B. The series converges conditionally but not absolutely. C. The series converges absolutely but not conditionally. D. The

26. ## math

1)The function f is defined by the equation f(x)+ x-x^2. Which of the following represents a quadratic with no real zeros? A)f(x) +1/2 B)f(x)-1/2 C)f(x/2) D)f(x-1/2) 2) If I^(2k) = 1, and i = radical -1, which of the following must be true about k? A) k is

27. ## Math

Determine the number of different six letter arrangements that can be formed with the letters GUIDEPOST if the last two letters must be vowels?

28. ## Math

Ms. Pacheco, Mr. Edwards, and Mr. Richards are three math teachers at Turner Middle School. Ms. Pacheco is three years older than Mr. Richards. Mr. Edwards is twice as old as Mr. Richards. The sum of Mr. Richards’ age and Mr. Edwards’ age is 81. How

29. ## math

which numbers have the same absolute value? choose all that apply. a. |-9| b. |-6| c. |4| d. |6|

30. ## Trig

Explain how to find the reference angle of 1406 degrees. Find the reference angle. The reference angle is 34 but how do you get that?

31. ## physics

Roger pushes a box on a 30° incline. If he applies a force of 60 newtons parallel to the incline and displaces the box 10 meters along the incline, how much work will he do on the box?

32. ## Chemistry

can you please help me rephrase this. The cycloaddition of a conjugated diene and a dienophile, an electrocyclic reaction that involves the 4 π-electrons of the diene and 2 π-electrons of the dienophile. The driving force of the reaction is the formation

33. ## English

I am writing an essay and I would like to know if I did this right. The source I got it from wasn’t a complete sentence but said free health insurance coverage for employee and family. In my essay I wrote “Pediatric Residency Program” continued that

34. ## Maths trigonometry

2sinA+5cosA=4. Prove that cosA=1/2

35. ## Health and Physical education just three questions

1 The Body's reaction to information is to send these to the brain. A neurons B impulses C dendrites D synapse 2 The part of the brain that controls movements and balance is the A cerebrum B derebellum C brain stem D frontal lobe 3 When diving into water,

36. ## Social

it is possible to be part of multiple nations simultaneously. however, in times of crisis, it is essential that loyalty to your country of residence take priority over any other loyalties. I haven't ever done position papers in grade 11. I'm having a hard

37. ## math;)

Which of the following statements about the function f(x)=sec(x) are true? Select all that apply. a. f(x) has no zeroes. b. f(x) has a period of 2pi.***** c. f(x) has an amplitude of 1. d. f(x) is symmetric about the origin. e. f(x) has asymptotes at

38. ## Math

In how many different arrangements can 5 dogs and 7 cats be placed in a row if the dogs must be next to one another?

39. ## Chemistry

Using your knowledge of equilibrium constants, calculate the value of K1 given the following equations: 2A+B ---> C K1=x 2B ----> D K2=5.00 2C -----> 4A+D K=0.0588 The arrows are reversible

40. ## Social Studies

What is the connection among sectionalism, slavery, and states' rights as causes of the Civil War? How did the Southern respone to the 1860 election results demonstrate this connection?

41. ## Geography

Name the bodies of water that border Saudi Arabia? I know it is the Red Sea, and Persian gulf but is the gulf of aquaba also considered one? Or are there any others?

42. ## Chemistry

I did a lab on spectrophotometric determination of iron in vitamin tablets, and I need to calculate the molarity of Fe(o-phenanthroline)3 in each solution and I have no idea how to calculate it. I know the concentration of Fe in the standard solutions in

43. ## Chemistry

If SiO_2 undergoes a double-displacement reaction with HF, what is the balanced equation?

44. ## ELA

Both the road not taken and O captain! My captain! are analogies. White a paragraph comparing the authors' use of analogy. I need an example on this so I know what to do and how to. A little Help would be nice if ya have the time.

45. ## English

Thank you for your help however I think you misunderstood me. In the sentence “Pediatric Residency Program” continued that the health insurance covers the pediatrician and his family. The part in quotations is the title of the source and I left it in

46. ## Geography

Problems facing petroleum in middle East

47. ## Science

a machine must be driven at 100 r/s from a belt pulley of 600 mm diameter revolving at 72 r/s . the maximum tensile force on the belt must not exceed 3000n .assume that the ratio of the tensile force is 2,5:1

48. ## Science

a machine must be driven at 100 r/s from a belt pulley of 600 mm diameter revolving at 72 r/s . the maximum tensile force on the belt must not exceed 3000n .assume that the ratio of the tensile force is 2,5:1. A Diameter of the driven pulley. B the power

49. ## Chemistry

The procedures of an experiment state that 1.3 g of copper (Cu) should be produced. However, the scientist’s experiment produces 0.9 g. What is the absolute error?

50. ## Chemistry (mol)

How many mol of nitrogen monoxide gas (N2) are in a 1.49 L container at standard temperature and pressure?

51. ## Chemistry

Study the balanced equation. 3O_2=2O_3 When 4.26 x 10^16 mol of oxygen (O) are converted into ozone, how many mol of the pollutant (O3) are formed?

52. ## Chemistry

in an IR explanation in cyclohexanol there are CH2 groups in the ring and that in the IR spectrum was at about v= 1454cm-1 so how will I say that will I say a sharrp, strond band at v=1454cm-1 which illustrates v(C-H) bend of the CH2 groups of cyclohexanol

53. ## math

Identify the oxidation-reduction reactions from the following list, and justify why. i) Hydrochloric acid neutralising sodium hydroxide. ii) Electrolysis of water iii) Esterification of ethanol and ethanoic acid iv) Iron nail in copper sulfate solution (I

54. ## Math

The trigonometry practice exam has 6 questions with the answer A 8 questions with the answer Baby 10 questions with the answer C and 9 questions with the answer D The number of different answer keys that can be created with the letters above is A. 2.27 ×

55. ## Math

How many possible numbers are between 1 and 1000000000 that are greater than 72000 if we only use the following digits (4, 5, 6, 7, 8)

56. ## History/SS

How did the spoils system affect President Jame s Garfield and his successor Chester A. Arthur? Please Mrs.Sue give me some links or something!!

57. ## English

If I diagram two sentences and the diagrams look different, are the sentence structures different? Also would that mean my sentence is free from plagiarism?

58. ## I am VERRRY confused- Math

The city of Atlanta recently increased their sales tax from 7.5% to 8%. How much more tax would you pay on a \$10 purchase? A) \$.01 B) \$.05 **** C) \$.07 D) \$.50 2. Miguel conducts a survey of 750 college students to see how many of them have a part-time

59. ## Chemistry

Identify the oxidation-reduction reactions from the following list, and justify why. i) Hydrochloric acid neutralising sodium hydroxide. ii) Electrolysis of water iii) Esterification of ethanol and ethanoic acid iv) Iron nail in copper sulfate solution (I

60. ## English

When I am writing an essay how will I reference if at the begining of the paragraph I get information from the site and then on the next paragraph I get information from that same site?

61. ## Math

in the triangle the length of sode a is 5ft, and m angle a =60 degrees. find the exact lengths of sides b and c

62. ## Math

Dello, i need help with this problem. Find the periodic withdrawals PMT for the annuity given. HINT [See Example 4.] (Assume end-of-period withdrawals and compounding at the same intervals as withdrawals. Round your answer to the nearest cent.) \$100,000 at

63. ## English

I get confused on when do I put a comma in writting essays can you please tell me when to?

64. ## Math

8. The graph below was drawn with the output on the vertical axis and input on the horizontal axis. What does this graph indicate about the relationship between the input and the output? (1 point) (Can't display graph) Please help I do not understand how

65. ## Math

In a given city there are 28 reporters of which 16 are men. If the committee of 4 reporters is to be formed A. How many different committees can be formed? B. How many different committees contain 3 men? C. How many different commitrees contain at least 2

66. ## Math

the volume of a solid scale mode of the tower is 70 cm^3. the scale is 1÷100, what volume of mental in cubic meter would be required to build the tower?