Questions Asked on
March 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.

    asked by joy
  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

    asked by Luisa
  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

    asked by Baby_Banana
  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

    asked by Naomi
  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

    asked by Adriana
  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.

    asked by Ben Dover III
  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.

    asked by T
  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

    asked by Jawad Haider
  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

    asked by Anonymous
  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

    asked by anonymous
  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

    asked by Ichi
  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)?

    asked by Summer
  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?

    asked by Louis
  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

    asked by Louis
  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

    asked by Liana
  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

    asked by Max
  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

    asked by rfvv
  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

    asked by Me
  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

    asked by Me
  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

    asked by T
  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

    asked by T
  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

    asked by Louis
  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,

    asked by Aline
  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

    asked by Anonymous
  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

    asked by Anonymous
  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

    asked by Aline
  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?

    asked by Louis
  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

    asked by Charlotte
  29. math

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

    asked by Jim
  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?

    asked by David
  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?

    asked by Anonymous
  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

    asked by help
  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

    asked by Idk
  34. Maths trigonometry

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

    asked by Shambu
  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,

    asked by Edward Elric
  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

    asked by Sarah
  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

    asked by girly girl
  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?

    asked by Sarah
  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

    asked by TP
  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?

    asked by Pier
  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?

    asked by Anonymous
  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

    asked by Lyndsay
  43. Chemistry

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

    asked by Summer
  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.

    asked by M
  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

    asked by Idk
  46. Geography

    Problems facing petroleum in middle East

    asked by Petroleum
  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

    asked by Viasen
  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

    asked by Viasen
  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?

    asked by Summer
  50. Chemistry (mol)

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

    asked by Summer
  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?

    asked by Summer
  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

    asked by help
  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

    asked by anonymous
  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 ×

    asked by Louis
  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)

    asked by Louis
  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!!

    asked by Laney
  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?

    asked by Wes
  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

    asked by Anonymous
  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

    asked by anonymous
  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?

    asked by help
  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

    asked by Benji
  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

    asked by Sophia
  63. English

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

    asked by help
  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

    asked by Rose
  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

    asked by Sarah
  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?

    asked by Anonymous
  67. Chemistry

    14. Using the equation of q = nCΔT determine the amount of energy required to raise the temperature of 24g of water 80ᵒC, with a heat capacity of 75.3 J/(mol*ᵒC )

    asked by Naomi
  68. social studies

    please help, i have no clue! they all seem like a good answer to me.. The Macdonald-Cartier bridge that stretches the Ottawa River and connects Ontario to Quebec is named for two Canadian politicians, one ______ and one _______. A.English, German

    asked by jake