1. Trigonometry

    Find all solutions of 4 (cos (x)**2)-1=0 in the interval (6pi, 8pi). (Leave your answers in exact form and enter them as a comma-separated list.)

    asked by Holly on July 31, 2013
  2. accounting

    An employee who is married and has two children submits a W-4 form to his employer indicating that he is single and claims zero deductions. Is this action ethical, unethical, or illegal?

    asked by China on January 15, 2009
  3. Math

    Reasoning Janice said that if you cut a cube into two parts you form 2 smaller cubes. Ling said that 2 rectangular prisms are formed. Who is correct? Explain.

    asked by Karen on November 4, 2011
  4. English

    I am currently writing my research essay for my Dual credit class over Election Security and Voting. I have completed my outline, but I do not know how to form a good hook.

    asked by Anthony on November 14, 2018
  5. english

    please clarify : write the correct verb form : 1.girl _______ (speak) cleverly . 2.our course_________(complete) by the month of March 2016 thank you

    asked by r s telagathoty on May 26, 2015
  6. math

    write y2-14x-4y-66=0 in standard form. Identify the focus, vertex, axsis of symmetry, and directrix. (This one has me completely stumped good luck)

    asked by Keaton on November 26, 2012
  7. Algebra

    Didnt write my question too good last time so here is what I meant. This is a mixed ezpression written as fraction and then to be put in simplest form. 3/1 minus 2x-2/x^2-1 thank you

    asked by Josie on December 31, 2012
  8. algebra II

    I need to write a polynomial in SIMPLEST FORM having roots 2,-2 and 4. I have to gt rid of the parentheses by multiplying everything out.Did I do it correctly? Also, someone said yes, but I'm wondering if it suppose to have anything else done to it-it

    asked by Jessica on September 22, 2011
  9. Chemistry urgent

    2CH3OH(g)→2CH4(g)+O2(g)ΔH=+252.8kJ How many kilojoules of heat are released when 38.8g of CH4(g) reacts completely with O2(g) to form CH3OH(g) at constant pressure?

    asked by ihatechem on October 30, 2014
  10. Algebra

    Didnt write my question too good last time so here is what I meant. This is a mixed ezpression written as fraction and then to be put in simplest form. 3/1 minus 2x-2/x^2-1 thank you

    asked by Josie on December 31, 2012
  11. social studies 9

    in point form, summarize Champlain's reasons for exploring Canada. what were your Criteria for determining whether something was a success or failure?? I REALLY NEED HELP I DON'T UNDERSTAND THIS QUESTION

    asked by amy on January 1, 2012
  12. Math

    Find the volume of a tank in the form of horizontal cylinder whose radius is 2.6 yd, and length is 8.4 yd. report your answer to the nearest tenth of a cubic yard, and use 3.14.

    asked by Sheilah on March 7, 2012
  13. business

    ____ 1. The form of organization for a business is not an important issue, as this decision has very little effect on the income and wealth of the firm's owners. TRUE OR FALSE

    asked by Dee on February 6, 2011
  14. algebra

    write in simplest form 1/10 / 1/4 they way you typed the problem illustrates well why it is so important to use brackets to show the precise order of operation. I will assume you meant (1/10) ÷ (1/4), if so then it would be (1/10)(4/1) =2/5

    asked by Tony on April 25, 2007
  15. math

    a set of 20 cards is numbered 1,2,3,... ..20. Suppose you pick a card at random without looking. Find the probability of each event. Write as a fraction in simplest form. P(3 or 13)

    asked by Jordan on March 25, 2008
  16. 5th grade math

    Write twenty million,five hundred thousand in expaned notation form using exponents. would that be (20x10tothe 8thpower)+(500x10to the 5th power)

    asked by jill on April 25, 2011
  17. Chemistry

    Methane reacts with water to form CO and H2 as follows: CH4(g)+H2O(g)=CO9g)+3H2(g) The value of Kp at 298 k for the reaction is 7.7 *10^24, calculate Kc. If you can please show the steps I would greatly appreciate it. Thank you

    asked by craig on December 10, 2013
  18. math

    Question: Just about everyone in any form of business today has seen at one time or another a Power Point Presentation. Do you think this type of "visual aid" is being overdone and consequently, doesn't have the impact it used to have?

    asked by meshelle on December 16, 2008
  19. 1 Science Question Unanswered

    Okay... I got all the answers. Thanks for the helps anyways. :( I just at least need one help. 1. In plants, sexual reproduction occurs when sperm and egg unite to form a... a. gamete b. gametophyte c. sporophyte d. zygote Is it a or d?

    asked by Ellen on December 17, 2015
  20. Math

    A piano tuner uses a tuning fork. If middle C has a frequency of 264 vibrations per second, write an equation in the form for the simple harmonic motion.

    asked by Lisa on October 9, 2006
  21. math

    marty has saved $72. He spent $8 on a video rental. write a ratio as a fraction in simplest form to srpresent what portion of his savings he has left

    asked by Taylor on May 3, 2012
  22. Math Please Help

    Look at the given triangles. they both have a right angle. blue: 4x+2, 7x+7, 5x-4 red: x+3, 2x-5, x+7 A. write an expression in simplest form that shows the difference between the perimeter of the larger triangle (that's the blue one) and the perimeter of

    asked by Call me Bunny on June 1, 2016
  23. Geology 245

    I am in need of help with my final project in Geology. I have to create a 12-15slide powerpoint presentation on Factors and Forces of Geological Features, The Barnett Shale. I have the final rubric Final Rubric: |Factors and Forces of Geological Features

    asked by Joe on April 30, 2011
  24. chemistry

    am in need of help with my final project in Geology. I have to create a 12-15slide powerpoint presentation on Factors and Forces of Geological Features, The Barnett Shale. I have the final rubric Final Rubric: |Factors and Forces of Geological Features

    asked by sweetbev on April 27, 2012
  25. Algebra 1

    Explain why the two equations below have the same solutions. x + 3y = −1 −2x − 6y = 2 A. The two equations have the same slope, so they have the same solutions. B. The second equation is a multiple of the first equation, so they have the same

    asked by Sanjay Gupta on April 24, 2016
  26. Physics

    A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0 degrees, and the man pulls upward with a force whose direction makes an angle of 30.0 degrees with the ramp. How large a force is necessary for the x

    asked by Michaelanne on June 15, 2015
  27. statistics

    Your friend is thinking about buying shares of stock in a company. You have been tracking the closing prices of the stock shares for the past 90 trading days. Which type of graph for the data would be best to show your friend?

    asked by blueyeshadow on January 6, 2011
  28. AP Calculus

    Let R be the first quadrant region enclosed by the graph of y= 2e^-x and the line x=k. a) Find the area of R in terms of k. b) Find the volume of the solid generated when R is rotated about the x-axis in terms of k. c) What is the volume in part (b) as k

    asked by some kid on April 12, 2009
  29. Calculus (Volume of Solids)

    A solid has, as its base, the circular region in the xy-plane bounded by the graph of x^2 + y^2 = 4. Find the volume of the solid if every cross section by a plane perpendicular to the x-axis is a quarter circle with one of its radii in the base.

    asked by Casablanca on March 13, 2012
  30. math

    1. A skateboard ramp has a 158º entry angle. Find the measure of ∠1. A.) 22º B.) 68º C.) 78º D.) 58º 2. Which of the following equations parallel to the line passing through A(-2, 7);B(-2, -2)? A.) y = -2 B.) y = x C.) 3x = 5 D.) -2x = 7y 3. Which

    asked by kaitlyn on October 30, 2013
  31. math axis of symmety

    What is the equation of the axis of symmetry of the graph with the order pairs of (-2,0) and (6,0). How would I do this since? I thought perhaps I could do -2+__=6 which would be 8 then 8/2 =4 so x=4 my brother says I'm suppose to do 6-2=4/2=2 so x=2 who's

    asked by carrie on October 23, 2010
  32. Calculus

    We can find some of the solutions of sin x = 0.2 graphically by graphing y = sin x and y = 0.2 (I was able to figure this one out) Use the graph below to estimate some of the solutions. (Let −3π < x < 3π.) Enter your answers as a comma-separated list.

    asked by Angela on April 14, 2015
  33. Calc

    Problems, once again. 1. Compute the average value of: f(x} = x/(x+3) over the interval [-a,a] 2. Find the area of the region bounded by the graph of: y = 2√(x^2 + 1) X axis Y axis Line x = 1 On the first, integrate, then divide the integral by 2a. On

    asked by Tezuka on March 17, 2007
  34. Econimics

    A coal producer has the following total cost: TC=$187,500+$5Q+$0.0003Q2, where Q is tons of coal produced per month. Calculate the firm’s maximum profit if coal price is stable at $20/ton. (7 points)

    asked by Rita on August 25, 2008
  35. Math (Bob Pursley

    i asked about stationary points which came out at (x-3) and (x+1) i am now trying to use the first derivative test to classify the left hand point... (x-3) so picking an xL point of -4 and an xR point of -1 i get this f ' (-4) = 3 16 - 4 + 9 = 48 - 24 + 9

    asked by Pd on July 14, 2010
  36. business communication

    Which alternative indicates the message(s), if any, which can spend considerable time discussing negative aspects of a situation? (Points: 5) Direct requests Persuasive problem-solving messages Sales messages Clearance messages

    asked by Anonymous on June 11, 2011
  37. psychology

    . "I just can't make myself study ahead for a test. I work better under pressure. Perhaps it is the fear associated with waiting until the last minute that gets me going." This approach to motivation is best explained by: (Points: 5) incentive approaches.

    asked by Anonymous on September 15, 2011
  38. Chemistry

    I posted this before and I know now to use P1T2=P2T1 but I was wondering what I would plug in as pressure and temp? just an example of one would be so great. In each of the four problem in this section, all gases are measured at the same temperature and

    asked by Eve on May 22, 2016
  39. Chemistry terms

    Match the terms with the correct definitions. 1. ligand 2. coordination compound 3. Lewis base 4. complex ion 5. bidentate ligand 6. octahedral complex a) a ligand that can form two bonds (donate two electron pairs) to a metal ion. b) a neutral compound

    asked by Adam on April 17, 2008
  40. Physical science check answers

    1. Imagine that you pushed a box, applying a force of 60 newtons, over a distance of 4 meters. How much work have you done? 15 joules 56 joules 64 joules 240 joules*** Question 2 (Multiple Choice Worth 2 points) Which statement best describes the

    asked by Summer Moriarty on September 14, 2016
  41. Math

    I have math HW and these are the questions i wasn't aware of how to answer... please help. a)Prove that 4x-y-1=0 is parallel to y=4x-5 b)Show that the points A(3,1), B(5,2) and C(11,5) are collinear c)Show that the lines y=2x-4 and x+2y-10=0 are

    asked by Crissy on September 17, 2011
  42. Pre-Calculus-Trig

    A surveyor stakes out points A and B on sides of a building. Point C on the side of the building is 300 feet from A and 440 feet from B. Angle ACB measures 38 degrees. What is the distance from A to B?

    asked by Chloe Mack on January 30, 2011
  43. statistics college

    suppose we have a set of blood pressure set with a mean of 120 systolic and a sample standard deviation of 20 points assume a normal distribution of what two values should 95% of all systolic bp lie

    asked by melba on May 22, 2012
  44. math trig

    two points A and Bare 80 feetapart on the same side of A towerand on a horizontal line through its foot.if angle of elevation of the top of the tower at A is 21 degree and B is 46 degree find the height of the tower.

    asked by mier on March 9, 2014
  45. physics

    Consider a pendulum of length 4.720 m. The acceleration of gravity is 9 . 832 m / s 2 . a) What is its period at the North Pole? Answer in units of s 009 (part 2 of 6) 10.0 points b) What is its frequency? Answer in units of Hz

    asked by scott on March 17, 2013
  46. English

    Write one paragraph describing the difference between grammar and usage. I have to score 20 points on this paragraph and I don't even know what to say in it. Grammar is the whole system and the structure of our language in general. This is all I got. What

    asked by Clueless on February 6, 2018
  47. Coordinate Geometry

    Please help!!!!! The points A,B,C,D have coordinates (3,3), (8,0), (-1,1), (-6,4) respectively. a) Find the gradients of the lines AB and CD b) Show that ABCD is a parallelogram c) Find the coordinates of the point of intersection of the diagnols AC and

    asked by Jitesh on December 19, 2012
  48. English

    5. Thomas Jefferson and Thomas Paine shared a similar purpose for writing. What was their purpose? (2 points) to express and reflect to persuade to inform to invite There is more than one possible; all the possible responses can be checked off. Thanks

    asked by Soh on September 28, 2011
  49. Law

    Under the _____, the solid waste provisions are more supportive than punitive in nature. (Points : 2) Gutter Act Bathroom Act Resource Conservation and Recovery Act Drain Act is it C?

    asked by Bryan on December 10, 2011
  50. Calculus I

    a). Find the critical points of the following functions on the domain or on the given interval. b). Use a graphing utility to determine whether each critical point corresponds to a local minimum, local maximum, or neither f(x)= x- tan^-1 x

    asked by Mjeed on November 4, 2015
  51. Geometry

    Points X, Y, and Z are on sides AB, BC, and CD, respectively, of square ABCD. Let O be the intersection of the diagonals of ABCD. Segments XO , YO, and ZO divide the square into three parts with equal areas. If Y is the midpoint of BC,find AX/XB. I'm not

    asked by Rahi on January 11, 2017
  52. Math

    A, B and C are 3 points on the level ground.B is due south of A . The baering of C from A is 085. A vertical mast of height 50m stands at A. The angle of elevation of T from B is 44 and the angle of elevation of T from C is 28 Calculate AB,AC, CB

    asked by Jay on April 11, 2017
  53. Algebra 1

    What is the solution of this question. You are taking a science course in which there will be four tests, each worth 100 points. You have scores of 88, 88, and 98 on the first three tests. You must make a total of 360 in order to get an A. What scores on

    asked by Desperately seeking help!! on November 28, 2010
  54. geometry

    1.in this problem, you will draw three rays for each triangle. each ray starts at a vertex and passes through the interior of the triangle.(how many triangles am i drawing) what is the maximum number of points of intersection between the rays?

    asked by bella on November 30, 2015
  55. algebra

    you are taking a science course in which there will be four tests, each worth 100 points. you have scores of 89, 97, and 95 on the first 3 teests. you must make a total of 360 in order to make an A. what scores on the last test will give you an A? A:

    asked by Carmen on October 4, 2008
  56. Science

    17. A small dog is trained to jump straight up a distance of 1.1 m. How much kinetic energy does the 7.7-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.) Show your work. (3 points)

    asked by Anonymous on March 10, 2011
  57. History

    In the twentieth century the United States entered the world arena as an international power. What are some major points that led the United States to this position? What are some important events that I should know? Thanks

    asked by John on May 4, 2017
  58. Physics

    At which point or points is the electric field zero in figure? I can not post the picture, but this is what it looks like: 1 2 3 4(4+)5 6(-)7 8 9 10 The (4+) is a proton with 4 charges. The (-) is an electron with 1 charge. They are on a number line 1-10.

    asked by Brittany on August 29, 2016
  59. Geometry

    W, R, and S are points on a number line, and W is the midpoint of point RS. For each pair of coordinates given, find the coordinate of the third point. Please correct me if I'm wrong! 1. R=4, S=-6 Answer: W=-1 2. W=-4, S=2 Answer: R=-10 *Could you please

    asked by Anonymous on September 6, 2014
  60. literture

    look around at your local community, how easily do disabled people get around. what needs to be chnged. i need to write a persuasive essay, about this, like what needs to be changed to make it easier for disabled people to get around. please just give me

    asked by literature on March 18, 2009
  61. Math

    Find quadratic regressive equation for the following f' points; (x, f'(x)): (-4,74); (-3,39); -2,10; -1,-6; 0,-14; 1,-12; 2,0; 3,22; 4,55 It's something really complicated, and I'm later asked to find the original equation, which is a cubic function. Any

    asked by Betty on February 9, 2016
  62. Math

    Astraled Middle SchoolMathematics 5 points The cost of a school banquet is $75 + 30n, where n is the number of people attending. What is the cost for 53 people? a - 1,590 b - 4,005 c - 1,665** d - 158

    asked by Ace on November 5, 2018
  63. math

    In a basketball game, one team's score is two points less than half the other team's score, which is x. What is the difference in the scores?

    asked by Anonymous on November 12, 2015
  64. Calculus

    Find the exponential curve through (7, 10) and (9, 250). Recall that an exponential curve is one given by the equation y = A * bx (i.e. is the set of all points (x,A * bx).

    asked by Preston on September 14, 2010
  65. math

    16. a. Find how many points of intersection exist between the parabola y = −2(x + 1)2 − 5, where y = f(x), x ∈ R, and the straight line y = mx − 7, where y = f(x), x ∈ R. b. Find m (m < 0) such that y = mx − 7 has one intersection point with y

    asked by Anonymous on June 29, 2018
  66. Calculus

    Find the exponential curve through (7; 10) and (9; 250). Recall that an exponential curve is one given by the equation y = A ¢ bx (i.e. is the set of all points (x;A ¢ bx).

    asked by Preston on September 14, 2010
  67. philosophy

    Truth tables can determine which of the following? (Points : 1) If an argument is valid If an argument is sound X If a sentence is valid All of the above

    asked by bean on October 26, 2011
  68. bearings

    The lines y=4x-7 and 2x+3y-21=0 intersect at a point A. The point B has coordinates (-2, 8).Find the equation of the lines that passes through the points A and B

    asked by eliasbaisi on April 22, 2014
  69. Geometry

    Paragraph proof: in the figure AC and BD LIE IN PLANE j and BY AND CX lie on k C and D are collinear. 2.) points a c and x are coplanar. 3.) X and Y are collinear

    asked by CASSIE on September 6, 2013
  70. co-ordinate

    The end points of a line segment AB are A(a,b) and B(b,a), where a and b both are positive . In which ratio the line segment AB is divided by axes?

    asked by Aman.G on February 1, 2018
  71. english

    i am writing an essay on texting conversation i also need to write about texting could you write some bullet points for the plan please

    asked by anabel on November 30, 2011
  72. tangent help me maths

    Show that the line 2x+5y+11=0 is a Tangent to the circle with equation x²+y²+2x-8y-12=0. Then find the tangent points. Show step pl

    asked by ... on December 19, 2016
  73. Cal 2

    Find the points of intersection of the graphs of the functions y=4x^2-25 and y=0. -5/2,5/2 Find the area bounded by the curves y=4x^2-25, y=0, x=-1, x=3.5. PS the area is not 54 I already tried.

    asked by Natalie on January 29, 2018
  74. logic

    What does Plato say about the unexamined life? (Points : 1) It is worth living. It is not worth living. It is unnecessary. It is unholy. None of the above.

    asked by Anonymous on June 6, 2015
  75. geometry

    Points P(1, 5) and Q(4, 1) on a coordinate grid represent side PQ of triangle PQR. What is the length of side PQ of the triangle?

    asked by Billy on November 11, 2011
  76. Real Estate Law

    Ownership rights that are associated with ownership of property include: (Points: 5) no rights at all. the right to lease it. the right to burn it down. the right to destroy it if someone else wants it. I think its (b)

    asked by Tony on July 28, 2011
  77. math

    line segment AB has coordinates (-2, 1) and (6, 3) find the coordinates of the three points that divide the segment AB into four equal parts

    asked by lisa on November 20, 2008
  78. stats

    If a student scored 75 points on a test where the mean score was 83.5 and the standard deviation was 3.1. The student's z score is ________.

    asked by susan on September 15, 2015
  79. Calculus

    How do you find the critical numbers and the end points of this function: f(x)=2x^3-3x^2-12x+5 i calculated the critical numbers as x=-1 and x=2 is this right?!?!

    asked by Sandra on March 21, 2009
  80. Physics

    Relative to some reference points , ur nose is in motion when you run. Relative to othrrs, its not in motion. Give one example of each,

    asked by Heleny on March 4, 2013
  81. math

    1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that

    asked by crystal on April 28, 2010
  82. Algebra 2

    What point in the feasible region maximizes the objective function ? (3 points) Constraints {x>0 {y>0 {-x+3>y {y

    asked by Alexia tucker on November 6, 2017
  83. Math

    What is the measure of the dent angle for a star-shaped polygon with 20 points and a dent angle of 12 degrees?

    asked by Donna on February 23, 2010
  84. calc

    if lebron is better than kobe. then lebron would have averaged more points than kobe in the lakers offence right??? yay or nay

    asked by jim on January 30, 2012
  85. URGENT!! 7th Grade Math Help Please!!

    2. Price of the iPad Mini: $329.00 Price of the iPad with a 15% discount. Show all of your work please!! [4 points]

    asked by CrazyGameWhizz on December 3, 2012
  86. linear algebra

    Let L1 be the line passing through the points Q1=(3, −3, 4) and Q2=(−3, 6, 7). Find a value of k so the line L2 passing through the point P1 = P1(−6, 11, k) with direction vector →d=[1, −1, −2]T intersects with L1. Not sure how to go on..

    asked by dan on September 25, 2018
  87. Tribhuwan

    sheila has taken five tests so far this semester. if she gets a 70 on her next test, it will lower the average of her test scores by four points. what is her average now?

    asked by Pwnmgr on September 2, 2015
  88. Maths

    Show that the points (20°N,20°E) and (60°N,160°W) lie on the same great circle.Find their great circle distance apart.

    asked by Gbotty on January 11, 2017
  89. Calculus Please Check my answers

    Use the graph of f(t) = 2t +2 on the interval [−1, 4] to write the function F(x), where f(x)= integral from 1 to x f(t) dt f(x)=x^2+3x f(x)=x^2+2x-12 My Answer f(x)x^2+2x-3 f(x)=x^2+4x-8 Find the range of the function f(x)=integral from 0 to x (sqrt

    asked by Ke$ha on May 22, 2017
  90. Algebra

    How do you graph the inequality when y.is equal to or lees than 1/4+1 That means y is less than or equal to 5/4. Draw a horizontal line at y=5/4 and shade the region below it. That is the region that satisfies the inequality.

    asked by chris on May 14, 2007
  91. math

    If I have an equation, q(x) = x, and I have to identify what the graph of that would look like, isn't it just going to be a straight line? There are two straight lines to choose from -- one is horizontal across the x-axis on the 1, and the other is

    asked by carly on November 8, 2017
  92. Algebra

    For each equation, determine whether its graph is symmetric with respect to the -axis, the -axis, and the origin. 4y^4+24x^2=28 and y=1/x^2+5 Check all symmetries that apply x-axis,y-axis,origin or non of the above.

    asked by Jena on February 4, 2011
  93. Math

    if there are 60 sixth graders how many sixth graders owned cats (there is a circle graph showing: Reptiles:5%, Birds:5%, Fish: 10%, Cats: 35%, and dogs: 45%)

    asked by ??? on February 1, 2018
  94. math

    if there are 60 sixth graders how many sixth graders owned cats (there is a circle graph showing: Reptiles:5%, Birds:5%, Fish: 10%, Cats: 35%, and dogs: 45%)

    asked by Mr.cullison on February 2, 2018
  95. math

    let fbe a function that is even and continuous on the closed interval [0,3]. the function f and itsderivatives have the properties indicated in the table below. sketch the graph. x 0 0

    asked by Melanie on January 22, 2012
  96. Pre-Calc

    Find the vertical asymptotes, if any, of the graph of the rational function. Show your work. f(x) = (x-4)/(x(x-4)) How would I show my work? the x-4 cancel out and I am left with 1/x. The vertical asymp. is x= 0

    asked by Liz on May 24, 2016

    Write the equation of the tangent line to the graph of the function at the indicated point. Check the reasonableness of your answer by graphing both the function and the tangent line. Y=(x-2)/(15-x^2) x=-4 HOW DO WE DO THIS

    asked by Herosugar on September 25, 2012
  98. science

    I did a physics experiment and now i need help with the matlab fit. can someone tell me how to do this fit in matlab? a1*[sin(a2(x-a3))/(a2(x-a3)]^2*[cos(a4(x-a3))]^2 i have a program that fits a graph to a function i just ask how to write this function.

    asked by henry on November 27, 2015
  99. ordinary differential equation

    a periodic function f(t) is defined by f(t) = t+pi -pi

    asked by thigan on May 21, 2016
  100. math

    You have $270 in your bank account. You plan to save $80 from your paycheck each week. Which graph shows your bank account balance at the end of each week?

    asked by denisse on December 6, 2016