1. trig

    From a tower 57 ft high two objects in a straight line from it are sighted at angles of depression of 27degrees and 40degrees5' respectively. Find the distance between the two objects.

    asked by renzkie on January 2, 2014
  2. Math

    Mno~pqr for each of the following angles name the angle that is cronguet.please give me the unit test answers for lesson 13 math 7 unit 8-geometry

    asked by Birdie on March 1, 2018
  3. analytical geometry

    if (l1,m1,n1),(l2,m2,n2),(l3,m3,n3) are the direction cosines of three mutual perpendicular lines,show that the line whose direction ratios area l1+l2+l3,m1+m2+m3,n1+n2+n3 make equal angles with them

    asked by manjula on January 16, 2013
  4. Algebra, URGENT!

    Two angles are supplementary if the sum of their measures is 180∘. If the measure of one angle is 13x degrees, represent the measure of its supplement as an expression of x.

    asked by Hannah on December 11, 2013
  5. Trig

    There is a right triangle with a left side of six, a bottom side of 10, and a hypoteneuse 11.66. How do you find the other two angles? I tried the inverse of tangent 6/11.66, but my calculator said that's invalid. What do you properly do?

    asked by Sam on December 17, 2009
  6. science

    Two forces P and Q whose resultant is 10Newton are at right angles to each other. If P makes 30 degrees with resultant.Show me the workings of the magnitude of Q in Newton and the diagram of the vectors.

    asked by Anonymous on June 8, 2015
  7. physics

    the displacement-time graph of two bodies P and Q are straight lines making angles 30° and 60° respectively with time axis .Calculate the ratio of velocities P and Q

    asked by adi on September 1, 2012
  8. physics

    A proton moves at right angles to a magnetic field of 0.0609 T with a speed of 8.16×10 6 m/s. Find the magnitude of the acceleration of the proton. Answer in units of m/s 2

    asked by Anonymous on March 4, 2011
  9. math

    Determine two coterminal angles (one positive and one negative) for the given angle. Give your answers in radians. a) 8pie/9 b)8pie/45 I know that you have to add 2pie but I do not know how to do that.

    asked by Hannah on October 13, 2009
  10. geometry

    a convex polygon has a pattern in which each angle alternates between being 140 degrees and being 148 degrees they give me 5 sides and want me to figure out how many angles

    asked by Anonymous on October 1, 2014
  11. Word Problem

    Suppose a frequency table consists of six categories. If all six categories contain the same number of observations, the interior angles of each section of the associated pie chart would be

    asked by Marilyn on September 4, 2008
  12. Math

    Working with Equilateral Triangles Problem 1: In a paragraph proof format, show why the angles of an equilateral triangle must measure 60 degrees.

    asked by Anonymous on September 10, 2017
  13. programmning code

    Is this code right? Declare Integer days, counter = 1 Declare Real penny = 1, salary, total = 0 Display "Enter a number of days." Input days Display "Days",TAB,"Salary While counter

    asked by Anon on May 21, 2010
  14. Math

    Is the sum of the measure of all the angles that come together in the center of a circle the same for every circle

    asked by Sam on January 26, 2012
  15. Math

    two angles are complementary. Twice one angle plus the other is 96'. Find the measure of each angle.

    asked by Amy on March 23, 2014
  16. geometry

    I am given triangle EDF with angles E and F being congruent. What is the perimeter of the triangle if ED= 2x+8, EF= 3x-6, and DF= 4x-6.

    asked by Luke on January 18, 2015
  17. math

    if angle A contains 1/2x and angle B contains 1/2(180-x) are the angles A and B supplementary, complementary, or neither

    asked by sk on September 25, 2014
  18. Math

    two angles are vertical. if angle A is 37 degrees, what is the measure of angle B?

    asked by Natasha on March 19, 2014
  19. trig

    True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.

    asked by Betsy on January 21, 2011
  20. math

    if angle A contains 1/2x and angle B contains 1/2(180-x) are the angles A and B supplementary, complementary, or neither

    asked by kahn on September 25, 2014
  21. math

    if the measure of the two opposite angles of a parallogram are: 3x + 40 and x + 50, what is the value of x and the measure of its angle

    asked by marlon on March 15, 2011
  22. trig

    If a triangle has angles 35 and 65 degrees, what is the measurment of the third angle? Is it a right triangle?

    asked by Jacob on April 9, 2008
  23. Math

    Find the ratio of the complementary angles having the ratio of 3:16. With solution please, thank you!

    asked by Jillian on November 19, 2017
  24. math

    find the measures of the angles on a nonagon???? and the formula used to find it

    asked by Katherine on January 10, 2011
  25. Math

    Two angles are complementary. Twice one angle plus the other is 96. Find the measure of each angle.

    asked by Mark on March 23, 2014
  26. Math

    Given:a and b are first-quadrant angles, sin a = 5/13 , and cos b = 3/5 , evaluate sin(a - b).

    asked by bill on March 19, 2010
  27. geometry

    In a right triangle, the angles are 90, 66, and 24. The length of the base is 11. What is the length of the hypotenuse?

    asked by Steve on March 16, 2016
  28. geometry

    Suppose ÐABC = 30°. If ÐABC is bisected, what would each of the new angles measure?

    asked by Superman on June 24, 2010
  29. Math

    What is the name of an angle that has equal length sides and equal angles?

    asked by Annia on October 1, 2009
  30. geometry

    If the degree measures of the angles of a triangle are represented by x,y,x+y the triangle must be??

    asked by andrea on February 10, 2011
  31. math

    a right triangle has one angle that measures 16 degrees. what are the measures of the other two angles?

    asked by dakota on February 5, 2011
  32. Math

    The diagonals of a rhombus are 16cm and 10 cm. Calculate the angles of the rhombus.

    asked by Vanessa on October 20, 2012
  33. Math Geometry

    A right triangle has one angle that measures 16 degrees. What are the measures of the other two angles?

    asked by David on January 26, 2011
  34. geometry

    X lies in the interior of

    asked by megan on February 9, 2010
  35. functions

    A and B are accute angles with sin A =0.7 and cos B= 0.4. Find sin(A-B)

    asked by jerson on December 8, 2008
  36. Physics please check

    A uniform solid disk with a mass of 32.3 kg and a radius of 0.414 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk. (a) What is the net torque produced by the two forces? (Assume counterclockwise is the

    asked by Mary on April 25, 2007
  37. Economics

    The handmade snuffbox industry is composed of 100 identical firms, each having short – run total costs given by STC = 0.5q2 + 10q + 5 and short – run marginal costs by SMC = q + 10 where q is the output of snuffboxes per day. a) What is the short

    asked by Pravinesh on November 6, 2011
  38. PHYSICS

    The drawing shows a large cube (mass = 34 kg) being accelerated across a horizontal frictionless surface by a horizontal force P. A small cube (mass = 3.3 kg) is in contact with the front surface of the large cube and will slide downward unless P is

    asked by MJ on June 4, 2007
  39. math

    1. The cost of a regular price to Saint Louis Cardinal baseball was $60. During the World Series, the price increased by 2/5. What did the fans pay? A. $65 B. $84 C. $80 D. $69 my answer is D 2. Abby is touring China for four days. The rental is $38.15 per

    asked by Kim on May 22, 2014
  40. Business Economics

    When we are given an expression for the Short Run Total Cost Curve (for eg: 8 + 3Q - 1.5Q^2 + 0.25Q^3), how do you derive expressions for the following: 1. Average Fixed Costs 2. Average Viarable Costs Curve 3. Marginal Costs Curve 4. Short Run Supply

    asked by Dan on April 18, 2007
  41. 8th grade math

    Kenisha sells athletic shoes part-time at a department store. She can either earn $500 per month plus a 4% commission on her total sales or $400 per month plus a 5% commission on total sales. A)write a system of equations to represent the situation. B)what

    asked by jessica on April 29, 2010
  42. Chemistry

    A mixture of ethane and ethene occupied 35.5 L at 1.000 bar and 405 K. This mixture reacted completely with 110.3 g of O2 to produce CO2 and H2O. What was the composition of the original mixture? Assume ideal gas behavior Im pretty sure i use dalton's law

    asked by Drew on September 20, 2012
  43. accounting

    To reconcile total manufacturing costs with the total cost of goods manufactured during the period, A)subtract out all period costs from total manufacturing costs to arrive at cost of goods manufactured. B)add beginning and subtract ending finished goods

    asked by Lee on August 12, 2008
  44. chemistry

    C6H5OH(s) + 7O2(g) --> 6CO2(g) + 3H2O(g) A 2.000 gram sample of pure phenol, C6H5OH(s), is completely burned according to the equation above. If the volume of the combustion chamber is 10.0L, calculate the final pessure in the container when the

    asked by ashley on December 28, 2007
  45. Chemistry (concentration)

    H2SO4(aq) + 2LiOH(aq) → Li2SO4(aq) + 2H2O(l) 3.2 moles of LiOH enter the reaction and are fully consumed. The molar mass of Li2SO4 is 110 g/mol. The final aqueous solution has a volume of 4.0 L. What is the final concentration of Li2SO4 in g/L? 44

    asked by Summer on April 11, 2018
  46. trig

    as a hot air balloon rises vertically, its angle of elevation from point P on level ground 110 kilometers from th epoint Q directly underneath the balloon changes from 15 degree 5' to 31 degree 45'. Approximately how far does the balloon rise during this

    asked by sam on October 22, 2011
  47. Statistics

    A. In a given normal distribution, the sample mean is 75 and the sample standard deviation is 4. Find the corresponding standard score of the following values: 1. 69 2. 85 3. 70 4. 65 B. In a given normal distribution, the population standard deviation is

    asked by Sylvia on March 3, 2018
  48. physics

    Challenger Deep in the Marianas Trench of the Pacific Ocean is the deepest known spot in the Earth's oceans, at 10.922 km below sea level. Taking density of seawater at atmospheric pressure (p0 = 101.3 kPa) to be 1024 kg/m3 and its bulk modulus to be B(p)

    asked by HELP!!!! on April 16, 2011
  49. Science

    clarify why parallax just works for stars that r less than 200 light years away. It is because of the smaller angles involved in the greater distances, which cause to many observation errors for calculations to be valid. Please correct me if I'm wrong,

    asked by Sara on February 23, 2010
  50. trig

    If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

    asked by A on April 4, 2011
  51. trig

    If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

    asked by A on April 4, 2011
  52. chemistry

    For CH3CO2H, give the hybridization and approximate bond angles for each atom except hydrogen. Also, draw an orbital bonding picture. Show all lone pairs. Can this be drawn on paint and uploaded to me? Thank you.

    asked by kate on September 24, 2009
  53. Physics

    Suppose a traffic light weighing 1.00*10^2 N hangs from a vertical cable tied to two other cables that are fastened to a supposrt. The tensions T1 and T2 are both 80N. Find the new angles with respect to the horizontal axis.

    asked by Anonymous on October 27, 2009
  54. accounting

    The partners in New Yorker Company decide to liquidate the firm when the balance sheet shows the following. NEW YORKER COMPANY Balance Sheet May 31, 2010 Assets Liabilities and Owners' Equity Cash $27,700 Notes payable $13,140 Accounts receivable 24,790

    asked by mayasa on April 8, 2010
  55. maths - geometry

    In a space with an orthonormal coordinate system consider the plane; &: 4x-3y=12 (a)(i)Find the coordinates of the points of intersection of the plane & with the coordinates axes (=axes intersections???) (ii)Find the parametric equations for the line of

    asked by Anonymous on April 28, 2010
  56. heat

    if the absolute pressure of a gas is 550.280 kPa, its gage pressure is ? A.101.325kPa b.277.280kPa c.448.955kPa d.651.605kPa Gauge pressure - atmosphericpressure=absolute pressure where atmospheric pressure varies, but standard atmospheric pressure is

    asked by Andre on July 15, 2005
  57. calculus

    When air expands adiabatically (without gaining or losing heat), its pressure and volume are related by the equation PV^1,4=C where C is a constant. Suppose that a a certain instant the volume is 520 cubic centimeters and the pressure is 99kPa and is

    asked by Ash on October 29, 2009
  58. math

    How do I calculate how much in total (including the down payment) I will have paid for this condo when I know the total amount, the down payment, the mortgage, and the monthly payment?

    asked by Madeline on August 7, 2013
  59. 5th grade math

    A marathon race has 522 runners divided into 6 groups. What is a reasonable number of runners in each group? A 112, because 522/6 is about 550/5=110 B 98, because 522/6 is about 500/5=100 C 87, because 522/6is about 540/6=90 D 82, because 522/6 is about

    asked by dave on October 21, 2010
  60. Chemistry

    I need to determine the "percentage composition unknown" whatever that is. My current data: a) mass of test tube and foil cover: 7.5323 g b)temp of water bath: 375.65 K c) mass of test tube and foil and gas as sample: 7.5423 g d) barometric pressure:

    asked by Selina on November 4, 2010
  61. Chemistry

    What mass of silver chloride can be prepared by the reaction of 160.0 mL of 0.25 M silver nitrate with 110.0 mL of 0.20 M calcium chloride? Calculate the concentrations of each ion remaining in solution after precipitation is complete. (Enter a 0 if none

    asked by Sam on March 14, 2013
  62. Physics

    A horse canters away from its trainer in a straight line, moving 110 m away in 16.0 s. It then turns abruptly and gallops halfway back in 5.4 s. (a) Calculate its average speed. m/s (b) Calculate its average velocity for the entire trip, using "away from

    asked by Jon Tres on August 30, 2018
  63. Growth model

    Hello everyone. My task is to build a growth model for a company. The company offers services to businesses - and thus allowing the businesses to recruit new clients. Assumptions: - I started working with 10 businesses - A business I start working with

    asked by Pete on August 9, 2009
  64. Math

    If a baseball and bat cost $110, and the bat costs $100 more than the ball, how much does the ball cost? I don't get it i say it's 10 but its not its 5 YYYYYYYYY

    asked by Daniel on March 22, 2017
  65. HELP!!!!!

    a 68 mile trip uses 2 gallons of gas. how many gallons would you use on a 110 mile trip? round to the nearest tenth of a gallon.

    asked by jean on November 12, 2009
  66. 10th grade algebra not ms.sue

    a 68 mile trip uses 2 gallons of gas. how many gallons would you use on a 110 mile trip? round to the nearest tenth of a gallon.

    asked by natalie on November 12, 2009
  67. Physics

    An 100.0-N crate of apples sits at rest on a ramp that runs from the ground to the bed of a truck. The ramp is inclined at 29.0° to the ground. (b) The interaction partner of this normal force has what magnitude and direction? Magnitude 87.46 N Direction

    asked by Amy on May 21, 2012
  68. calculus

    C(q) = q3−60q2+1200q+760 for 0 ≤ q ≤ 50 and a price per unit of $551. Round your answers to the nearest whole number. a) What production level maximizes profit? q = b) What is the total cost at this production level? cost = $ c) What is the total

    asked by Anonymous on July 16, 2014
  69. physics

    You are riding in the back of an open pick-up truck in the snow as you pass your friend's house. Despite the fact that it is snowing you know that he has a habit of being in his bedroom with the light on and his bedroom window open. Being as you are riding

    asked by afia on September 23, 2014
  70. English

    Can someone check these sentences I need to prepare for tomorrow? Thank you. 1) Troy has been at the BRIT School since he was 14. Before that he was in a normal secondary school. 2) Unlike in a normal secondary school, students at the BRIT study all the

    asked by John on April 2, 2013
  71. Physics

    A gas is confined in a 0.47-m-diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together is 150 kg. The atmospheric pressure is 101 kPa. (a)What is the force (in Nt) exerted on the gas by the piston, the weight and

    asked by Thao on January 15, 2013
  72. ALGEBRA 2

    In triangle ABC , angle C is a right angle. Find the remaining sides and angles. Round your answers to the nearest tenth. Show your work

    asked by SAM on November 29, 2014
  73. physics

    A stationary mass of 10 kg disintegrates explosively, with the evolution of 4.2*10^5 J, into three parts, two having equal masses of 3 kg. These two masses move at right angles to each other. Calculate the speed of the third part.

    asked by rikki on January 16, 2012
  74. Geometry

    8)Suppose that a given parallelogram is not a rhombus or a rectangle. Which of the following can you conclude about this parallelogram? A) Its diagonals are perpendicular bisectors of each other. B) It is a square. C) Its angles are not all congruent. D)

    asked by Don on May 23, 2010
  75. Math

    Find the area of a triangle on a spherical surface that has a radius of 3cm and angles that measure 75degrees, 160 degrees, and 142 degrees.

    asked by Em on April 29, 2015
  76. physics

    A bag of cement of weight 370 N hangs from three wires Two of the wires make angles è1 = 58.6° and è2 = 23.8° with the horizontal. If the system is in equilibrium, calculate the tension T1.

    asked by Vishnu on October 11, 2008
  77. Geometry

    If the sum of the measures of the interior angles of a n-sided polygon is 1,0800, then set up a mathematical model to find the number of sides of the polygon.

    asked by Summer. on June 3, 2015
  78. math

    What is the sum of the measures of the angles of a regular decagon? What is the measure of each angle in the decagon? 1,620°; 162° 2,880°; 288° 1,440°; 144° none of these

    asked by i will pay on February 12, 2018
  79. GEOMETRY

    The sum of the measures of two exterior angles of a triangle is 264o. What is the measure of the third exterior angle? • 84o • 96o MY ANSWER?? • 112o • 124o

    asked by SANDRA on December 19, 2014
  80. Physics

    An optical fiber is made of a clear plastic with index of refraction n=1.6, For what angles with the surface the light remain contained within the plastic guide?

    asked by jo on January 4, 2015
  81. Pre-calc

    If llull=1 and llvll=3, and the vectors maek angles of 170 degrees and 130 degrees with the x-axis respectively, find the component form of the sum of u and V. Please help thanks!

    asked by Casandra on February 14, 2012
  82. physics/math

    Does the formula Sum of internal angles of a polygon = (n - 2)x180 degrees, where n represents number of sides, work for polygons of interacting sides?

    asked by sandhya on August 25, 2010
  83. Geometry 12

    What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 42° and its congruent sides each measure 9 cm? Please express your answer as a number only.

    asked by Kayla Druery on December 14, 2015
  84. physics

    A 3 point jump shot is released 2.2 m above the ground, 6.14 m from the basket, which is 3.06 m high. For launch angles of 30° and 60°, find the speed needed to make the basket.

    asked by talia on November 13, 2014
  85. Pre-Calculus

    Determine the number of triangles that can be formed with the given information. and if it forms two possible triangles solve all unknown angles and sides Angle A=116 degrees a=10 b=11

    asked by DW on April 7, 2013
  86. pre calc

    the longest side of a triangle is 34 feet. the measures of two angles of the triangle are 40 and 65 degrees. find the lengths of the other two sides using law of sines and cosines

    asked by g on April 29, 2011
  87. Physics, diffraction

    1. Yellow light of wavelength 580 nm shines on a diffraction grating with 4000 lines/cm. A.At what angles do the first-order and second-order maxima occur?

    asked by Jamie on April 8, 2013
  88. physics

    a fire hose held near the ground shoots water at a speed of 6.5m/s at what angle should the ozzle point in order that the water land 2.5m away? why are there two different angles?

    asked by kelly on October 17, 2011
  89. Math

    An object is acted upon by two forces, u and v, with direction angles €u and€v, respectively. Find the direction and magnitude of the resultant force. U= 30lb €u = 0degrees v= 90lb €v =60 degrees

    asked by Jace on November 14, 2012
  90. Math

    State the theorem or postulate that is related to the measures of the angles in each pair. Then find the angle measures. m∠3=(23x+11)°,m∠4=(14x+21)° Can you teach me this problem?? Please...

    asked by CC on August 31, 2016
  91. Physics

    A wheel has a radius of 100 cm. How far (path length) in meters does a point on the circumference travel if the wheel is rotated through angles of (a) 30°, (b) 60 rad, (c) 60 rev, respectively?

    asked by jack on February 10, 2017
  92. maths

    Rudransh has a piece of cardboard in shape of a quadrilateral. He cuts it into two triangles such that angles formed at the vertices are bisected. He wants to find out whether the two triangles are congruent or not

    asked by Anonymous on January 10, 2013
  93. math

    A jet A is flying above 2 ships B and C which are 18km apart. If the angles of depression of B and C from are 60 and 32 degrees respectively, find the height of the jet above the sea level, correct to the nearest m.

    asked by someonestupid on March 5, 2016
  94. Science

    What two angles of elevation will enable a projectile to reach a target 16 km downrange on the same level as the gun if the projectile's initial speed is 400m/sec ?

    asked by Siegrain on October 16, 2014
  95. Math

    Draw two scalene triangles that are not congruent, but have exactly five sets of parts (sides and angles) that are congruent. Make a drawing that is to scale. Label yourmeasurements.

    asked by Michelle on November 9, 2012
  96. Experiment+ bio

    In the 1950s the heavy isotope of nitrogen (15N) and an ultracentrifuge were used in an experiment to investigate the manner in which DNA replicates. Bacteria were grown in a culture containing 15N nucleotides for several generations to ensure that only

    asked by Chalrey on December 12, 2006
  97. criminal justice 255

    Describe and apply six law enforcement strategies from Chapter 6 of Defending the Homeland. For each: Label the strategy as proactive, reactive, or both. Describe the strategy: What is it, and what is required to execute the strategy? List the top

    asked by RAINY on December 6, 2007
  98. Fluid Mechanics

    A tank is 180cm long, 90cm deep and 90cm wide at the top, tapering to 30cm wide at the base. If the tank is completely filled with water, calculate: a) the total weight of the water in the tank b) The total force exerted by the water on the bottom c) The

    asked by Claire on November 2, 2010
  99. Stats, Statistics, Math

    A Statistics professor assigned 10 quizzes over the course of the semester. He wanted to see if there was a relationship between the total mark of all 10 quizzes and the final exam mark. There were 229 students who completed all the quizzes and wrote the

    asked by Papi on September 24, 2016
  100. Microeconomics - University of Boston

    4. If Cassandra bought 16 cotton blouses last year when her income was $40,000 and she buys 24 cotton blouses this year when her income is $50,000, then what is her income elasticity of demand? Interpret what the income elasticity of demand you just

    asked by Robert on October 17, 2012