Questions Asked on
November 25, 2012

  1. Adult Development and life Assessment

    Most dentists in the united states are male while the majority of nurses are female. These difference show how different cultures define. 1. Sex 2. Gender roles 3. Sexism 4. Social strata . Not sure

    asked by Regina
  2. Adult Development and life Assessment

    In order to increase self-esteem, experts say you should.. 1. Praise any behavior without reservation. 2. Acknowledge complete tasks especially those that are difficult 3. Avoid tasks that are easiy complete 4. set high sandards, especilly in areas that

    asked by Regina
  3. Adult Development and life Assessment

    Ken is a successful landscrape designer who an visualize backyard plan and them create it. Ken shows a high degree of 1. bodily kinesthetic intelligence 2. spatial intelligences 3. interpersonal intelligences 4. intrapersonal intelligences My answer is

    asked by Regina
  4. English and grammar

    i need someone to check my work but i cant just copy it and paste it here. i need to send it via e-mail. please give me your email add and ill send it to you. thanks

    asked by john
  5. math

    Find the present value of $31,000 due in 4 yr at the given rate of interest. (a) 6%/year, compounded quarterly $ ? (b) 3%/year, compounded quarterly $ ?

    asked by Amanda
  6. chemistry

    Represent this reaction with a balance chemical equation. Solid aluminium hydride is formed by a combination reaction of its two elements.

    asked by Shane
  7. Chemistry

    Complete and balance the following equations.Identify each type of the reactions. (a) Cr + O2 >Cr2O3: (b)Na2CO3 + Mg3(PO4)2: (c)H3BCO+ H2O> B(OH)3 + CO + H2:

    asked by Shane
  8. Accounting

    Please Help!!!! Trying to get a little help on working this accounting problem. Please help... Jawed enterprises uses a job-order costing system and a predetermined overhead rate based on machine hours. At the beginning of the year, the company estimated

    asked by Lee
  9. Chemistry 105

    What is the molarity of a solution obtained by dissolving 10.35 g of KNO3 in some water and diluting to exactely 1 L in a graduated flask?

    asked by Mita
  10. Chemistry105

    How many grams of NaCI are therein exactely 25.00 mL of a 0.1053 M solution of the salt?

    asked by Kevin
  11. Chemistry 105

    What is the weight/ weight% of a solution made by dissolving 12.0g of NaC1 in 100.0 g of water?

    asked by Mira
  12. Chemistry105

    What is the molarity of a solution made by diluting exactely 10.00 mL of a 0.1235 M solution of KNO3 to exactely 250 mL in a graduated flask?

    asked by Mira
  13. fraction maths

    iam a fraction in simples form i am greater than 4\5 the sum of my terms is 25 what fraction am i

    asked by fathima
  14. Science

    A 0.500 kg ice puck, moving east with a speed of 3.30 m/s, has a head-on collision with a 0.900 kg puck initially at rest. Assuming a perfectly elastic collision, (a) what will be the speed of the 0.500 kg object after the collision? (b) What will be the

    asked by nammilee_2012
  15. Math please help! Urgent

    Find the height of an equilateral triangle with sides of length 6 cm ' please show ur work

    asked by Jessica
  16. maths

    the ghaziabad train passes every 20 minutes the faridabad train passses every 15 minutes the gurugaon train passes every 18 minutes it is 6 p m and all the train just passed by when is the next time that will happen

    asked by fathima
  17. Earth Science

    Develop a presentation on two ways technology has built on scientific knowledge?

    asked by Lizzie Saxon
  18. PHYSICS

    What is the direction (vertical or horizontal) of the transmission axis of Polaroid sunglasses? Give the physical reason for your answer.

    asked by sal
  19. PHYSICS

    What is the direction (vertical or horizontal) of the transmission axis of Polaroid sunglasses? Give the physical reason for your answer.

    asked by sal
  20. physics

    you are to determine the amount of sugar dissolved in solution. how can you use polaroid filters to complete the task?

    asked by aa
  21. Mathematics

    Find the maximum or minimum values of sin x+sin y+sin(x+y)

    asked by MM
  22. PHYSICS 1 ..

    as she pick up her riders a bus driver traverses four successive displacements represented by the expression (-6.30 b)i-(4.00 b cos 40)i-(4.00 sin 40)j+(3.00 b cos 50)i-(3.00 b sin 50)j-(5.00 b)j here b represents one city block,a convenient unit of

    asked by JOAN
  23. science,physics

    A ship is heading due north at 12km/h in a tide moving 5km/h westward. Determine the magnitude and direction of the resultant velocity of the ship?

    asked by secrated
  24. Physics

    A car accelerates steadly from zero to 30m/s in a distance d & a time t, another car takes a time 3t to accelerate steadly from stationary to the same final velocity.what distance does the second car cover during the new the new acceleration?

    asked by Minte
  25. science physics 2

    Sharlyn walks 5km/hr, how long will it take her to travel 15km?

    asked by secrated
  26. music

    from symphony, sonnet, concerto and aria which one is the odd one out?

    asked by rainclaw
  27. HELP ME HELP ME GEOMETRY PROBLM!!!

    In triangle ABC, m

    asked by SUPER HARD
  28. Greenhill

    Abag contains 11red beads 4 green beads 1 purple bead. Two beads are drawn without replacement in the bag. A). Calculate probability ttwo beads are same colour. And. B) calculate probability purple bead is not taken.

    asked by Lorna
  29. surgical technology

    Please am writing a term paper on indirect inguinal hernia, and I need help with writing the the preoperative prococedure before one goes for surgery. Please help me.

    asked by philomenah njoroge
  30. college algebra--I really need help!!

    Find the domain of the composite function FOG f(x)= 2/x-3; g(x)= 7/x please show work so I can undestand

    asked by Ladybug
  31. math

    There are 5 yellow cards, 4 red cards, and 1 purple card. He draws a card at random, replaces it, and draws a second card. What is the probability that both cards will be red?

    asked by marissa
  32. math

    4xy(3x^2y-2)

    asked by marie
  33. Psychological Disorders

    I need to identify the mental disorder that matches this example: Ian feels his bicep muscles are not big enough, and his six pack is not defined enough. It makes him feel especially distressed. Because of this he has started spending all this time at the

    asked by Alex L.
  34. english

    Has been looked, watched make have had looked Are all of these in the past tense? If they were all used in a paragraph would it still be in the same tense? If not, which phrases/words should I change to fit the past tense?

    asked by amy
  35. physics

    An airplane has a mass of 3.41 × 104 kg and takes off under the influence of a constant net force of 2.57 × 104 N. What is the net force that acts on the plane's 78.8-kg pilot?

    asked by John
  36. chemistry

    A 93L sample of dry air is cooled from 145 to-22 under constant pressure.What is the final volume?

    asked by nikki
  37. COMPUTER SCIENCE

    Write a program that calculates and displays the total travel expenses of a businessperson on a trip. The program should have functions that ask for and return the following:  The total number of days spent on the trip  The time of departure on the first

    asked by GUDLET
  38. physics

    An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.46 x 105 m/s to a final velocity of 2.25 x 106 m/s while traveling a distance of

    asked by John
  39. math

    the perimeter of a backyard is 430 feet. If the width is 19 feet less than the length, find the length of the yard.

    asked by patty
  40. statistics

    T test for independent groups and dependent groups (Two-group designs) 1. An LU professor is interested in whether there is a difference between undergraduate students and graduate students in the amount of time spent praying each day. The professor

    asked by Carob
  41. Math

    How much money should be deposited today in an account that earns 6.5% compounded monthly so that it will accumlate to $8,000.00 in three years?

    asked by V
  42. chem

    what color change happen when you add a solution containing Ag+ ion to the mixture AgSCN? How is this consistent with LeChatelier's principle? pls correct my answer. my answer is a more white solid or pecipitate form due to insoluble AgSCN. It is

    asked by Andrew78
  43. history

    What six revolutionaries were not at the convention

    asked by sherianna johnson
  44. Social studies

    I need help unscrambling this group of words. the subject is Thanksgiving. serllleo ofcavu. 2 words, and the letters can be used anywhere throughout

    asked by Keshia
  45. chem

    Mg(OH)2=Mg2 + 2OH- a) which species would react with if an acid H+ is added to the mixture? my answer is the equation will shift to the right (product) b) would this cause a deficit or excess? my answer is excess c) what would you predict would be observed

    asked by Andrew78
  46. surgical technology

    Please am writing a term paper on indirect inguinal hernia, and I need help with writing the the preoperative prococedure before one goes for surgery. Please help me.

    asked by philomenah njoroge
  47. Math

    if radius increased by 0.5 cm each year by how much did the circumference increase each year

    asked by G
  48. Science

    What is the definition of Clarity?

    asked by Susan
  49. reading

    1. Which of the following examples of dialogue shows the correct punctuation? (1 point) Madison said, "we should all go to the hardware store". Madison said, "We should all go to the hardware store." Madison said "We should all go to the hardware store."

    asked by tesj
  50. chemistry

    A 0.4671g sample containing sodium bicarbonate was titirated with hcl requiring 40.72ml. The acid was standardized by titrating 0.1876g of sodium carbonate FW 106mg/mmol requiring 37.86ml of the acid. Find the percentage of nahc03 fw 84mg/mmol in the

    asked by Fai
  51. chemistry

    When aqueous solutions of iron (III) sulfate (Fe2(SO4)3) and sodkum hydroxide were mixed, a precipitate formed. What is the precipitate?

    asked by Ama
  52. Present Tense

    am excited started cooking has been I wanted to make sure all of these are present tenses

    asked by amy
  53. Teacher Aide-Pennfoster

    Im almost done finishing this course online and I need to check my answers for Exam number 02604500 Helping Abused Children please.

    asked by Brie
  54. chemistry- What does this symbol mean

    if there is an E symbol with a slash through it on an ICE chart what does it stand for?

    asked by Tara
  55. maths

    differentaite w.r to x h(x) = arcosh(x^3 + 2).

    asked by JESS
  56. Math

    A manufacturer decides to build a half-pipe with a parabolic cross section modelled by the relation y=0.2x^2-1.6x+4.2, where x is the horizontal distance, in metres, from the platform, and y is the height, in metres, above the ground. Complete the square

    asked by Anonymous
  57. chemistry- What does this symbol mean

    if there is an E symbol with a slash through it on an ICE chart what does it stand for?

    asked by Tara
  58. Help

    Any tips on how to get excellent grades? :) please reply fast

    asked by Jesse
  59. maths

    at a fairground, the table shows the prbability of winning an amount on a spinner. what is the minimum amount that can be charged to make profit from the game? amount 5p 10p 20p 50p prbability 0.5 0.25 0.15 0.1 can you show how you worked it out? thanks

    asked by ??????
  60. surgical technology

    Please help!! I had posted a question on how to write an essay paper, ie how to start off a paper on preoperative procedure for indirect Indirect inguinal hernia?

    asked by philomenah njoroge
  61. math

    Translate 17 increased bt 4 times d

    asked by Anonymous
  62. chemistry €

    what is this? i cant find it in my book or online and yet its on my ICE chart and have to fill out.......

    asked by beta
  63. physics

    An airplane taxis onto the runway going at 10 m/s.if it can accelerate at 3.0 m/s square and its take-off speed is 90 m/s, what length of runway will it need?

    asked by Rita
  64. physics

    An airplane taxis onto the runway going at 10 m/s.if it can accelerate at 3.0 m/s square and its take-off speed is 90 m/s, what length of runway will it need?

    asked by Rita
  65. chemistry

    To clean a clogged drain, 26g of sodium hydroxide is added to water to make 150ml of solution. What are the pH and pOH values for the solution?

    asked by ashley
  66. chamistry

    calculate the pH pOH and (OH(aq)) of 0.006mol/l HI(aq)

    asked by ashley
  67. chemistry

    How many moles of vanadium atoms, V, are needed to combine with 0.725 mol of O atoms to make vanadium pentoxide,V2O5?

    asked by Dom
  68. Chemistry

    How do you prepare 600.0mL of 0.48M Al(NO3)3*9H2O? Is this correct? 1. Measure out 71g of solution 2. Put approx. 300.0mL of water into container 3. Add the 71g of solution to the water and mix 4. Add more water until 600.0mL of solution is obtained 5. Mix

    asked by Anon
  69. chemistry

    sodium oxide reacts with carbon dioxide to form sodium carbonate. How much carbon dioxide is needed to produce 79g or sodium carbonate?

    asked by Anonymous
  70. physics

    A duck has a mass of 2.70 kg. As the duck paddles, a force of 0.130 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.210 N in a direction of 52.0 ° south of east. When these forces begin to act, the velocity

    asked by John
  71. calculus

    A 12,000 liter tank filled to capacity at t=0 drains at rate r(t), measured in liters per hour, where r is defined as piece-wise function: r(t)={ (600t)/(t+3), [0,5] {1000e^(-0.2t), (5,infinity) Is r continuous at t=5? Show work that lead to you answer.

    asked by nico
  72. chem

    Mg(OH)2=Mg2 + 2OH- a) which species would react with if an acid H+ is added to the mixture? my answer is the equation will shift to the right (product) b) would this cause a deficit or excess? my answer is excess c) what would you predict would be observed

    asked by Andrew78
  73. trig

    I don't understand what to do after i convert everything into cos and sin. Verify: cosx(tanx+cotx)=cscx

    asked by Sally
  74. chem

    what color change happen when you add a solution containing Ag+ ion to the mixture AgSCN? How is this consistent with LeChatelier's principle? pls correct my answer. my answer is a more white solid or pecipitate form due to insoluble AgSCN. It is

    asked by Andrew78
  75. math

    The price of a home is $215,000. The Bank requires 20% down payment and three points at the time of closing. The cost of the home is financed with a 30-year fixed-rate mortgage at 7%. Find down paymen

    asked by Anonymous
  76. calculus

    Two particles move along the x-axis. For 0≤t≤6, the position of particle P is p(t)=2cos(t*π/4), while the position of particle R is r(t)=t^3-6t^2+9t+3. For 0≤t≤6 find all the times which the two particles travel in opposite directions.

    asked by nico
  77. math

    If I have an 85 in a class and I made a 53 on a mid-term, what would my average be? Grades based on a 100 point scale.

    asked by roseann
  78. Chemistry

    When a 5.00 ml sample of vinegar is titrated, 44.5 ml of 0.100 m NAOH solution is required to reach the end point. What i sthe concentration of vinegar in moles per liter of solution?

    asked by Amber
  79. chemistry

    Write a balanced equation for the proton transfer reaction between water and phosphate ion. Determine in which direction the equilibrium is favored.

    asked by Amber
  80. statistics

    For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

    asked by Robbie
  81. statistics

    For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

    asked by Robbie
  82. statistics

    A repeated-measures study uses a sample of n = 20 participants to evaluate the mean differences among three treatment conditions. In the analysis of variance for this study, what is the value for dfbetween treatments?

    asked by Robbie
  83. Adult Development and life Assessment

    What do we call the variable that is manipulated by an experimenter when conducting in experiment. 1. Independent VARIABLE 2. Dependent variable 3. Beased variable 4. Extraneous variable My answer: Independent variable

    asked by Regina
  84. Adult Development and life Assessment

    Ken is a successful landscrape designer who an visualize backyard plan and them create it. Ken shows a high degree of 1. bodily kinesthetic intelligence 2. spatial intelligences 3. interpersonal intelligences 4. intrapersonal intelligences Would my answer

    asked by Regina
  85. Math

    Translate x more than 10 times b

    asked by Anonymous
  86. Tobin School

    the plane goes 700 miles an hour . The car goes 50 miles an hour . How many times faster than the car is the plane .

    asked by Adriana
  87. physics

    coull you explain in detail - how many BTU,S ARE REQUIRED TO RAISE THE TEMPERATURE OF 500 GALLONS OF WATER FRO 70 DEGREES TO 160 DEGREES FARAHIENT. THANKS

    asked by jay
  88. algebra

    Can someone please explain these problems to me I have tried and cannot figure them out. 1)Use synthetic division to find p(-3) for p(x)=x^4-2x^3-4x+4 2)Find all the zeroes of the equation x^4-6x^2-7x-6=0

    asked by lee
  89. math

    how much interest will you have to pay for a credit card balance of $554 that is 1 month overdue, if a 20% annual rate is charged?

    asked by samreen
  90. chemistry

    a sodium hydroxide solution was prepared according to the procedure outlined in this weeks experiment. This sodium hydroxide solution was standardized by by titration against exactly 10mL of a 0.28M hydrochloric acid solution. In three titrations, the

    asked by Kacie
  91. PHYSICS

    COULD YOU FURTHER EXPLAIN HOW MANY BTU ARE REQUIRED TO RAISE THE TEMP OF500 GALLONS OF WATER FROM 70 DEGRESS TO 160 DEGREES FAHRENHIET

    asked by jay
  92. college algebra--I really need help!!

    solve the following exponential equation. exact answers only. 1-9x 2x 2 = e I hope that you understand this question. I don't and need some help please. Can you show all answers please.

    asked by Ladybug
  93. CIS/Visual Logic

    Design an application that accepts 10 numbers and displays them in descending order. Us an array to store the numbers and Bubble Sort to sort the numbers.

    asked by Sonya
  94. Chemistry

    The hydronium ion concentration for a solution is determined to be 4.5 x 10^-7 M. What is the concentration of the hydroxide ion? I just wanted to let the people that are being nice enough to help me know that this is for a study guide. It is not a test or

    asked by Amber
  95. PROBABILITY QUESTION PLEASE HELP!!

    Three people play a game of "nonconformity": They each choose rock, paper, or scissors. If two of the three people choose the same symbol, and the third person chooses a different symbol, then the one who chose the different symbol wins. Otherwise, no one

    asked by PLEASE HELP
  96. GEOMETRY QUESTION

    Four circles of unit radius are drawn with centers (0,1), (-1,0), (0,1), and (0,-1). A circle with radius 2 is drawn with the origin as its center. What is the area of all points which are contained in an odd number of these 5 circles? (Express your answer

    asked by SUPER HARD
  97. Social Studies 8R help!!!!

    What strength did the south have over the north at the start of the civil war?

    asked by Laruen
  98. Chemistry

    The hydronium ion concentration in coffee is 1 x 10^-5 M. What is the pH of coffee?

    asked by Amber
  99. english

    is "notebook papers" right? or should it be: notebook paper i'm looking for the plural form but i feel like notebook papers doesn't sound right

    asked by amy
  100. Finance

    You own a portfolio that has $1500 invested in Stock A and $2,600 invested in Stock B. If the expected returns on these stocks are 11.1 percent and 16.7 percent, respectively, what is the expected return on the portfolio?

    asked by Cynthia
  101. English

    Create a new definition for the word wild?

    asked by 026800
  102. Physics

    If the puck strikes the goalie's pads and stops in a distance of 4.14 cm, what average force is exerted on the pads? Answer in units of N. This is part three of three parts. 1st Part: A player strikes a hockey puck giving it a velocity of 39.486 m/s. The

    asked by Alexandra
  103. Algebra

    If a trend line has equation y = -2x + 5, what type of association would you expect the data to have?

    asked by Libby
  104. Adult Development and life Assessment

    Heinz is a recent immigrant Germany Which of the following will not contribute to his feeling of being American. 1. Learning eglish 2. Socializing beyond his native ethnic group 3. Learning aboaut american culture 4. Avoiding other German

    asked by Regina
  105. Hyde memorial secondry school

    A pole 6m long leans against a vertical wall so that it makes an angle of 60 with the wall calculate the distance of the foot of the ladder from the wall.

    asked by Shedrack Danjuma
  106. Corporate Finance

    Calculating Float. You have $13,200 on deposit with no outstanding checks or uncleared deposits. If you deposit a check for $4,800, does this create a disbursement float or a collection float? What is your available balance? Book balance?

    asked by Susanne
  107. business

    What are the basic assumptions made in consumer theory and how do they affect managerial decision-making?

    asked by Connie
  108. income tax

    Abel's car ws completely destroyed in an accident that was his fault. His loss was $8,500 and his insurance company reimbursed him $6,500. What amount of casualty loss can Abel claim on his return (before deduction limitations)? a. $0 b. $2,000 c. $6,500

    asked by Lourane
  109. ALG II

    Write each rational expression in simplest form and list the values of the variables for which the fraction is undefined. 1. x^2-7x+12/x^2+2x-15 2. 5y^2-20/y^2+4y+4 3. -7+7a/21a^2-21 4. 5(1-b)+15/b^2-16

    asked by Juli
  110. income tax

    For 2011, Jorge, a single father, reported the following amounts relating to his investments: Net investment income from interest $7000 Interest expense on a loan to purchase stocks $2000 Interest expense on funds borrowed in 2010 to purchase land for

    asked by Lourane
  111. Physics

    Police examine the scene of an accident involving two cars, which is parked. The skid marks of the moving car, which nearly came to a stop before the collision, is 80 meters long. The coefficient of kinetic friction between rubber and the pavement is about

    asked by Tim
  112. Math

    Suppose you toss three fair coins. You win 32 cents if all three coins come up the same. You win 8 cents if exactly 1 head occurs, and you win 48 cents if exactly 2 heads appears. Would you pay 30 cents to play this game? If not, then how much would you be

    asked by cd
  113. Physics

    Carrying household appliances can be very difficult due to the weight and size. Some movers place the appliance on a dolly and move it around, however this can cause damage to floors, and it also does not work on stairs. A new technique is to utilize

    asked by Tim
  114. Physics

    You are the designer of a school bus and would like to know what the maximum stopping distance is that will ensure the students to remain in their seats. The coefficient of static friction for the passenger and the bus seat is .5, and the coefficient of

    asked by Tim
  115. Physics

    Two people push on a box that has a mass of 10kg, the person on the right has a mass of 86kg and applies a horizontal force of 50N. The person on the left has a mass of 45kg. The coefficient of kinetic friction between the box and the floor is .2, the

    asked by Tim
  116. Physics

    Two blocks, (Mass of block 1 = 2.3kg, Mass of block 2 = 1.2kg), are in contact on a frictionless table. If a horizontal force of 3.2N is applied to the larger block, what is the acceleration of the smaller block. Describe all external forces that are

    asked by Tim
  117. algebra

    write the slope-intercept form equation of the line with slope -3 that passes through the point (0,0). Enter any non-integer coefficient as a fraction

    asked by Pam
  118. Physics

    You have setup an experiment with two 50g masses attached to strings that are connected on opposite sides of a scale that measures weight in Newtons. a.) What is the reading on the scale? b.) The whole system is now moving to the left at a speed of 10m/s.

    asked by Tim
  119. chemistry

    Arrange the following oxides in order of increasing acidity: P2O5, As2O5, N2O5, SnO2, SeO3, and BaO. (Use the appropriate symbol to separate substances in the list.) I have no idea how to do this! please help!

    asked by Samantha
  120. math

    The number 108 is the LCM of 36 and 54. list the next multiple of 36 and 54. Explain your reasoning

    asked by Kaz
  121. Phyiscs

    A 5.00g lead bullet is fired into a wooden fence post. The initial speed of the bullet is 250m/s, and when it comes to rest, half its kinetic energy goes into heating bullet. How much does the bullet's temperature increase?

    asked by noname
  122. unified science

    1) a bus drove 65 km/h. how far did it travel in 3 hours? 2) a bird fly at 8 m/s. how far can it travel in 10 seconds? 3) a snail can creep along at 5 cm/min. how can it travel in an hour? 4)an narrow flying at 94 m/s struck the target in 1.8 s. how far

    asked by witazza
  123. Pre Calculus

    (a) Determine the number of terms, n, if 3+3^2+3^3+..........+3^n= 9840. (b) Three numbers, a, b and c form a geometric series so that a+b+c = 35 and abc = 1000. What are the values of a, b and c ?

    asked by HanuMath25/11
  124. Business Math

    A trader buys 3 dozen units of product x for a total of 158.40 what is the unit price?

    asked by Queen
  125. Math

    X-17/-2=28

    asked by Leslie
  126. Pre Calculus

    The third term of a geometric series is 24 and the fourth term is 36. Determine the sum of the first 10 terms. Express your answers as an exact fraction.

    asked by HanuMath25/11
  127. pre-algebra

    Nicholas is making cranberry relish for Thanksgiving. The recipe requires five pints of cranberries. Nicolas only has four cups of cranberries. How many more cranberries will Nicholas need to make cranberry relish? Show all your work. Please help don't get

    asked by stephanie
  128. trig

    How would I solve this problem for t? 720 = 11.895+2.545sin [2pi/366(t-80.5)]

    asked by anna
  129. Pre Calculus

    When doctors prescribe medicine at equally spaced time intervals, they are aware that the body metabolizes the drug gradually. After some period of time, only a certain percent of the original amount remains. After each dose, the amount of the drug in the

    asked by HanuMath25/11
  130. pre-calc help !!!!!!!

    1) cscθsinθ-sin^2θ 2)sinθcscθ/tanθ 3)secθ/cotθ+tanθ 4)(1-cosθ)(1+cosθ)

    asked by cindy
  131. physics

    A child rides a toboggan down a hill that descends at an angle of 18.1 to the horizontal. The hill is 34.9 m long. What is the horizontal component of the child’s displacement?

    asked by Anonymous
  132. English Speech

    This year, all the students in the same grade has to give a speech and the topic is "My voice is important because..." instead of repeating in every new story, "my voice is important because.." what is another way to state it?

    asked by Emma
  133. precalculus

    #1 cscθ-cotθ #2 cosθ(tanθ-secθ) #3 tanθ+sinθ/cscθ+cotθ

    asked by lucy
  134. Physics

    A skier squats low and races down a 14 degree ski slope. During a 5 s interval, the skier accelerates at 4.2 m/s2. What is the horizontal component of the skier’s acceleration (perpendicular to the direction of free fall)?

    asked by Anonymous
  135. science

    Electrophillic addition of HCl to 2-methyl-2-propene?

    asked by jayda
  136. Physics

    The sum & difference of two non-zero vectors Ä & B are equal in magnitude.what can you conclude about these vectors?why?

    asked by Minte
  137. Geomatric series

    A fractal is created: A circle is drawn with radius 8 cm. Another circle is drawn with half the radius of the previous circle. The new circle is tangent to the previous circle. Suppose this pattern continues through five steps. What is the sum of the areas

    asked by HanuMath25/11
  138. math

    1 sixth +seven two =

    asked by Anonymous
  139. phsyics

    A box have a mass of 50 Kilograms is dragged across a horizontal floor by means of a rope tied on the front of it. The coefficient of friction between the box and the floor is .3. If the angle between the rope and the floor is 30 degrees, what force must

    asked by Anonymous
  140. gen chem

    a 10 ml vinegar sample was completely neutralized by 22.5 0.2M NaOH solution . calculate the molarity and percent acetic acid in vinegar I keep getting 2.7% acetic acid is this correct? my friend got 27% and if I am wrong where do you think I messed up?

    asked by shannan
  141. math

    Maggie is driving home from college. She drives at a constant speed for 2 hours and then lowers her speed for the next two hours. Which graph best illustrates Maggie's trip home from college?

    asked by Anonymous
  142. math

    evaluate 4x if x=0.016

    asked by 78787
  143. math

    one sixth + seven twos =

    asked by Anonymous
  144. algebra

    ln x¹³ = (ln x)² please show me how to solve this step by step Thanks

    asked by sandy
  145. physics

    A tank full of water has a height H = 12:5 m. A small hole is drilled into its side h = 2:5 m above the ground. What is the horizontal distance from the tank to the point where the water spout owing from the hole reaches the ground?and at what height must

    asked by gustavo arvizu
  146. Physics, Please Help

    A homeowner is trying to move a stubborn rock from his yard which has a mass of 1025 kg. By using a lever arm (a piece of wooden board) and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the

    asked by Mike
  147. Chem

    Hypothesis: A prediction of what you think the results of the project will be. Write your hypothesis before you begin the experiment and, if the experiment has more than one part, you will need a hypothesis for each section. Remember to create an

    asked by Jessica
  148. Chemistry

    10. When a 5.00 mL sample of vinegar is titrated, 44.5 mLof 0.100 M NaOH solution is required to reach the end point. What is the concentration of vinegar in moles per liter of solution (molarity, M)?

    asked by Anonymous
  149. Algebra

    PLEASE HELP!!!! :) Michelle got her uncle to sponsor her for the walk to raise money for the animal shelter. He said he would use the rule A=8+2d, where A is the amount he will pay if Michelle walks d miles. Explain the meaning of the 8 and the 2 in this

    asked by Brielle
  150. physics

    a 2.00kg copper plate with an initial temperature of 20.0 degrees Celsius slides with a constant velocity down a 150m long surface that is inclined at 30 degrees angle to the horizontal. If the mechanical energy lost by the system due to friction is

    asked by HELPME!♥
  151. Chemistry

    The pressure exerted by a gas in a container depends on? and why?

    asked by ashwee
  152. physics

    An athlete swings a 3.06 kg ball horizontally on the end of a rope. The ball moves in a circle of radius 0.82 m at an angular speed of 0.25 rev/s. What is the tangential speed of the ball? Answer in units of m/s

    asked by James
  153. physics

    A model airplane of mass 1.5 kg is attached to a horizontal string and flies in a horizontal circle of radius 5.8 m, making 2 revolutions every 8 s. (The weight of the plane is balanced by the upward “lift” force of the air on the wings of the plane.)

    asked by James
  154. Physics. Easy question? Please help

    What is the (a) maximum and (b) minimum total resistance value that can be obtained using three resistors whose values are 2.0 ohms, 4.0ohms and 6.0 ohms? The resistors can be used individually, in pairs, or all three at once. Is this a trick question? Is

    asked by samantha
  155. Calculus AB

    Is there a connection or correlation between an increasing interval and a concave up interval? Explain?

    asked by Ayu
  156. chemistry

    This soidum hydroxide solution was then used to determine the amount of acetic acid in vinegar. Three titrations of the sodium hydroxide solution against exactly 5mL of vinegar using phenolphthalein indicator required 22.85Ml, 22.67mL and 22.93mL of the

    asked by Elizabeth
  157. Practical Exercise 2 Electronics

    In the circuit shown in Figure A-1, where would you connect your meter’s test probes to measure the full battery voltage?

    asked by Anonymous
  158. sco120

    The outlawing of slavery and extending voting rights to women seem to indicate that ethics can have beneficial results. Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which

    asked by lucille
  159. science

    please help me i am in 4th grade and i need help on my science project. my science project is, is smiling contagious and i have no idea what to do for research and data

    asked by kaylee
  160. Chemistry 1115

    How do you calculate the molarities of HC2H3O2 and NaC2H3O2 in a buffer solution?

    asked by Marci
  161. English

    What would be a good quote to describe me encouraging someone to become a better singer? How about giving advice and preventing something?

    asked by Emma
  162. Math

    For y= (3x)/(2e^x+e^-1), use graphing techniques to find the approximate intervals on which the function is: a) increasing b) decreasing c) concave up, d) concave down then find any e) local extrema f) inflection points

    asked by Olivia
  163. Math

    Matt spent 7/10 of her money to buy a kettle. The kettle cost $56. How much money did she have at first? How much did she have left?

    asked by MJG
  164. Math

    The derivative of a function is f'(x)=x(x+2)(x-5). Find the value of x at each point where f has a (a) local maximum, (b) local minimum, or (c) point of inflection

    asked by Olivia
  165. Chemistry 1115

    What is the chemical equation for the reaction that occurs when you add 0.1 M NaOH solution to the HC2H3O2-NaC2H3O2 buffer solution?

    asked by Marci
  166. math

    which of the following numbers are factors of 120? how do you know? a)2 b)5 c)7 d)12 e)120

    asked by Anonymous
  167. Chemistry

    A reaction has a standard free-energy change of –12.40 kJ mol–1 (–2.964 kcal mol–1). Calculate the equilibrium constant for the reaction at 25 °C.

    asked by Anonymous
  168. us history

    What was the society of south circa 1840? I was doing some flash cards for us history and this was one of the vocab terms. I couldn't find anything about it in my textbook, notes, and met a similar difficulty while trying to look for it on the internet.

    asked by Chrys
  169. math

    determine whether or not each number is a common of 144 and 240. try to use different methods. a)2 b)3 c)10 d)48 e)120

    asked by Anonymous
  170. math

    I am having difficulty with statistics..I am taking stats 4, but haven't taken 3 yet. Explain deviation below or above the means please. ex. If bill received a NCE score deviation below the mean, what would his score be? which is 10. Can you explain the

    asked by dora
  171. Physical science

    Physical science a 2.0g metal ball that carries a charge of 10 uC is placed into an electric field. the ball at rest at point A is accelerated to point B with a speed of 1.0 m/s. what is the electric potential difference between point A and point B?

    asked by ann
  172. chemistry

    75g of FeCL3 are dissolved in 700 mL of solution, what is the concentration of Fe3+ ions? what is the concentration of Cl- ions?

    asked by john
  173. Math

    A rock is thrown straigh down from a height of 480 feet with an initial velocity of 16 feet per second. How long does it take to hit the ground and with what speed does it hit the ground?

    asked by Jessica
  174. Physics

    An object moving with uniform acceleration has a velocity of 12m/s in the +ve x-direction,when its x-coordinate 3cm.if its x-coordinate 2sec. later is -5cm ,what is the acceleration?

    asked by Minte
  175. question about making reference

    what is the right way to cite this? all the info comes from 1 book but different pages. Martin Kantor (2003). Distancing: Avoidant Personality disorder. Road West, Westport: Praeger publishers. Pp. 13-14. Martin Kantor (2003). Distancing: Avoidant

    asked by john
  176. Programming

    How would the flow charts and pseudocode look for this? The Metric Conversion application is a menu-driven program. First, the program displays a Main Menu that states the purpose of the program and allows the user to select one of five metric system

    asked by Nyeel
  177. World History

    How did the people of Mohenjo-Daro modify their environment?

    asked by Monica Ruiz
  178. chemistry

    a student heated 3.48 g of a pure sample of CaSO4 2 H2O until all the water of hydration was expelled. what was the mass of the residue?

    asked by Jules
  179. chemistry

    a student heated 3.48 g of a pure sample of CaSO4 2 H2O until all the water of hydration was expelled. what was the mass of the residue?

    asked by Jules
  180. PLEASE HELP!! DESPERATE!!! (MATH)

    The derivative of a function is f'(x)=x(x+2)(x-5). Find the value of x at each point where f has a (a) local maximum, (b) local minimum, or (c) point of inflection

    asked by Olivia
  181. math

    What is the GCF of two different prime numbers? Explain ur reasoning.

    asked by Anonymous
  182. physics

    Which consumes more energy, a 1.5 kW hair dryer used for 10 min or a 10 W night light left on for 19 hr?

    asked by kev
  183. Math

    decide on a topic which is adding drinks to each purchase from the lunch for which they would like to collect data and design a survey for school which could really be used to convince the principal to do. Create 7 questions for the survey. My questions so

    asked by Emily
  184. physics

    Bob can throw a 540 g rock with a speed of 26 m/s. He moves his hand forward 0.8 m while doing so. What is Bob's maximum power output as he throws the rock?

    asked by meg
  185. Math

    37% of college students say they use credit cards because of the rewards program. You randomly select 10 college kids and ask each to name the reason he or she uses credit cards. Find the probability that the number of college students who say they use

    asked by Drew
  186. Physics

    Two blocks, (Mass of block 1 = 2.3kg, Mass of block 2 = 1.2kg), are in contact on a frictionless table. If a horizontal force of 3.2N is applied to the larger block, what is the acceleration of the smaller block. Describe all external forces that are

    asked by Tim
  187. Physics

    Two people push on a box that has a mass of 10kg, the person on the right has a mass of 86kg and applies a horizontal force of 50N. The person on the left has a mass of 45kg. The coefficient of kinetic friction between the box and the floor is .2, the

    asked by Tim
  188. Physics

    You are the designer of a school bus and would like to know what the maximum stopping distance is that will ensure the students to remain in their seats. The coefficient of static friction for the passenger and the bus seat is .5, and the coefficient of

    asked by Tim
  189. Physics

    Carrying household appliances can be very difficult due to the weight and size. Some movers place the appliance on a dolly and move it around, however this can cause damage to floors, and it also does not work on stairs. A new technique is to utilize

    asked by Tim
  190. precalculus

    Find the horizontal and vertical components of the vector with the given length and direction, and write the vector in terms of the vectors i and j. |v| = 24, θ = 30°

    asked by Ama
  191. math

    44% of adults say cashews are their favorite kind of nut. You randomly select 12 people and ask each to name their favorite nut. Find the probability that the number who say cashews are their favorite nut (a) exactly three, (b) at least four, and (c) at

    asked by Anon
  192. Physic

    A wheel-and-axle system shown consists of two coaxial wheels of radius r = 2 meters and R = 6 meters. The forces applied to the system as shown in the diagram are: F1 = 80 N F2 = 80 N F3 = 40 N F4 = 30 N If counterclockwise is positive, what is the net

    asked by Anonymous
  193. Physic

    A wheel-and-axle system shown consists of two coaxial wheels of radius r = 2 meters and R = 6 meters. The forces applied to the system as shown in the diagram are: F1 = 80 N F2 = 80 N F3 = 40 N F4 = 30 N If counterclockwise is positive, what is the net

    asked by Anonymous
  194. physics

    Bob can throw a 540 g rock with a speed of 26 m/s. He moves his hand forward 0.8 m while doing so. What is Bob's maximum power output as he throws the rock?

    asked by meg
  195. physics

    A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 195-kg laser sensor which measures the thickness of the ice (see the drawing). The helicopter and the sensor move only in the horizontal direction and have a horizontal

    asked by John
  196. Chemistry

    The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of chalcopyrite must be mined to obtain 315 of pure ?

    asked by Renee
  197. Physics

    A car traveling at constant speed safely negotiates a frictionless banked curved. Calculate the speed of the car when the road is banked at 20 degrees and the radius of its path is 50 meters. HINT – Do not rotate your axes. Answer v = 13.35 m/s

    asked by Anonymous
  198. Physics

    Two identical ice skaters are holding onto opposite ends of a very long spring with a spring constant of 650 N/m. While spinning in a circle, the skaters frequency of revolution is measured to be 0.85 Hz. Calculate the mass of the skaters. m = 45.6 kg

    asked by Anonymous
  199. Math

    On a centimeter dot array, draw all possible rectangles with a perimeter of 12 cm and sides whose lengths are whole centimeters. Label the lengths of two adjacent sides of each rectangle.

    asked by VauNea
  200. Chem

    How would you prepare 150ml of .5M NaOH starting with a 6M solution of NaOH

    asked by Gonzalo
  201. CHEMISTRY-Explanation Please

    In the laboratory, 3.50 grams of salicylic acid were reacted with 7.20 ml of acetic anhydride (density equal to 1.08 g/ml). Determine the limiting reagent. Calculate the theoretical yield of the product, acetylsalicylic acid (ASA), produced in the above

    asked by Yaw
  202. Chem

    How many grams of NaOH9(m.w.=40) do you need to prepare 200ml of .5M NaOH

    asked by Gonzalo
  203. geography

    Can you check my answers please? 1. List the oceans according to size from smallest to largest. Arctic Ocean, Southern Ocean, Indian Ocean, Atlantic Ocean, Pacific Ocean. 2. Name the three states that border Lake Superior. Michigan, Minnesota, and

    asked by Reed
  204. math

    You have six coins. three of them are 25cents. what fraction of the coins are 25cents coins?

    asked by huxley
  205. Physics

    If a supersaturated sugar solution is allowed to evaporate slowly, sugar crystals form in the container. Hence, sugar molecules go from a disordered form (in solution) to a highly ordered, crystalline form. Does this process violate the second law of

    asked by S
  206. physics

    How much work must be done to accelerate a baton from rest to an angular speed of 8.0 rad/s about its center. Consider the baton to be a uniform rod of length 0.84 m and mass 0.64 kg.

    asked by stoic-rider77
  207. math

    perform the indicated operation and expres your answer in simplest radical form ^3 sqrt 8 / ^4sqrt 8

    asked by Martha
  208. physics

    Turning a doorknob through 0.53 of a revolution requires 0.10 J of work. What is the torque required to turn the doorknob?

    asked by stoic-rider77
  209. Chemistry

    Sodium vapor lamps, use for public lighting, emits 489 nm yellow light. What energy is emitted by: a) an excited sodium atom when it generates a photon? b) 1 mole of excited sodium atoms at this wavelength?

    asked by Michelle
  210. Chemistry

    The standard free energy of activation of a reaction A is 88.6 kJ mol–1 (21.2 kcal mol–1) at 298 K. Reaction B is one hundred million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol–1 (2.39 kcal

    asked by Anonymous
  211. Math

    -90/7+18 step by step, fraction answer

    asked by Kristi
  212. Physics

    A car moving at 43 km/h skids 16 m with locked brakes. How far will the car skid with locked brakes at 129 km/h?

    asked by Andrea
  213. Math Calc

    An object is moving along a circle of radius 5 . When the object is at the point (−4,3) , the y value of its position is changing at the rate of 9 units per second. How fast is the x value of its position changing at that moment?

    asked by Ken
  214. american government

    2. In federalism, the national government (Points : 1)

    asked by Ben
  215. physics

    A 5.1-kg bowling ball and a 8.4-kg bowling ball rest on a rack 0.50 m apart. (a) What is the force of gravity exerted on each of the balls by the other ball? (b) At what separation is the force of gravity between the balls equal to 2.0e-9 N?

    asked by stoic-rider77
  216. Physics

    Visible light is incident perpendicularly on a diffraction grating of 200 rulings/mm. What are the (a) longest, (b) second longest, and (c) third longest wavelengths that can be associated with an intensity maximum at theta=30 degrees?

    asked by Brian
  217. math

    A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Can someone plz help i don't understand this question.

    asked by Hager
  218. Chemistry

    My final exam is coming up so I am doing study guides to help me practice. I would really appreciate any help that is given. 1. The hydronium ion concentration for a solution is determined to be 4.5 x 10^-7 M. What is the concentration of the hydroxide

    asked by Studying
  219. Physics

    A radioactive nucleus at rest decays into a second nucleus, anelectron, and a neutrino. The electron and neutrino are emitted atright angles and have momenta of8.90×10−23 and5.35×10−23 , respectively. What is the magnitude of the momentum of the

    asked by nammilee_2012
  220. Math

    A microscopic worm is eating its way around the inside of a spherical apple of a radius of 6 cm. What is the probability that the worm is within 1 cm of the surface of the apple? ( hint: v=4/3pier^3 where r is the radius)

    asked by Angie
  221. 6th grade math

    Can't figure this math problem out: Write an algebraic expression for the product of five less than a number and three, less eight, is twenty-eight. HELP ME PLEASE!!

    asked by Nicholas
  222. physics

    Two 0.61 kg basketballs, each with a radius of 13 cm, are just touching. How much energy is required to change the separation between the centers of the basketballs to the following (a)1 meter (b) 10 meters

    asked by chris neives
  223. Geometry

    What are the measurements you'd use to build a triangular prism that has a volume of 10 decimeters?

    asked by Taylor
  224. chemistry

    what is the molality of a solvent that is 0.15 degree celcius

    asked by lauren
  225. physics

    When you stand on your tiptoes, your feet pivot about your ankle. As shown in the figure, the forces on your foot are an upward force on your toes from the floor, a downward force on your ankle from the lower leg bone, and an upward force on the heel of

    asked by Cassie
  226. chemistry

    The air exhaled by an average human being might have the following typical combustion, expressed in terms of partial pressures: N2 = 569torr; O2 = 116 torr; CO2 =28 torr; water vapor = 47 torr. what are the mole fractions of each?

    asked by Annie
  227. Math

    Jack's dad is tiling his shower. On one wall, he will use 9 rows of 14 tiles. The 4 center tiles in the top 2 rows will have a special design on them. How many of the tiles will not have a design of them?

    asked by Mia
  228. Statics

    A gate rotates at point A and releases water when the water's depth, , exceeds a certain value. (Figure 1) The gate's width (perpendicular to the image) is = 3.00 , the water's depth is = 4.04 , and point A is located at = 2.02 . What is , the magnitude of

    asked by John Wayne
  229. geometry

    in triangle PQR below, S and T are midpoints of side PQ and QR, repectively.If ST=12 and PR=2X+4, what is te value of X

    asked by yenifer
  230. Symbolic Logic

    1. ((∀x-Fx v ∀xGx) v -(∀xKx → -∃y∀z∃w-Dyzw)) & ((∀xFx & ∀x-Gx) v (∃xKx → ∀y∃z∀wDyzw)) ├ ∀x(((Fx → Gx) → (Kx → ∀y∃z∀wDyzw)) & ((∃y∀z∃w-Dyzw → -Kx) → (-Gx → -Fx))) 2. -∃x(Px → ∀yGxy) v ∃x(Lx &

    asked by sara thunderbird
  231. Math

    A grocer purchased 50kg salt at the rate of rs.8 per kg and mixed it wid 70kg salt purchased at the rate of rs 5 per kg .at what rate per kg must he sell the mixture to make a profit of 20% ? I want sltn nd ans is rs 7.50per kg

    asked by Simran kaur
  232. Math

    a man sells a radio set a gain of 5 %.had he sold it for rs.490 less,he would have lost 2 %.find the c.p of the radio set.

    asked by Simran kaur
  233. Math

    a man sells a radio set a gain of 5 %.had he sold it for rs.490 less,he would have lost 2 %.find the c.p of the radio set.

    asked by Simran kaur
  234. Chemistry 1202

    calculate the Ph of the cathode compartment solution if the cell emf at 298 K is measured to be .6 V when Zn2+=.25M and PH2=0 .8 atm

    asked by BMW
  235. Algebra 2 ..

    How do you solve (-16)^1/4?

    asked by Anonymous
  236. physic

    a baseball is thrown 30 m/s backwards from a truck moving forward 50 m/s, how fast will the ball strike the glove of a ground-based catcher?

    asked by Anonymous