1. Math

    A parallelogram has adjacent sides of 78 inches and 90 inches, and the angles between them is 35 degrees. Find the length of each of the diagonals.

    asked by sadie on May 30, 2015
  2. geometry

    The measures of two consecutive angles of a parallelogram are in the Ratio 3:7. Find the measure of an acute angle of the parallelogram

    asked by Kay on March 23, 2013
  3. Geometry

    Use a paragraph proof to prove: if two lines and a transversal form corresponding angles that are congruent, then the two lines are parallel.

    asked by Anonymous on February 22, 2012
  4. math

    A regular polygon has the sum of the interior angles as 3240degrees . find the number of sides the polygon has.

    asked by Nita on April 5, 2016
  5. physics

    Find the resultant of the following two displacements; 2.0 m 40 degrees 4.0 meters at 127 degrees. the angles are taken relative to the x-axis

    asked by jenny on September 5, 2016
  6. Math

    A plane leaves Boston at 10 am (Boston time) and flies non-stop to LA, 2700 miles away, at 580 miles per hour (mph). On the same route, a second plane is flying non-stop from LA to Boston at 620 mph. If the second plane lease LA at 10 am (LA time), how

    asked by Jake on January 22, 2013
  7. algebra

    The volleyball team at West View High School is comparing T-shirt companies where they can purchase their practice shirts. The two companies, Shirt Box and Just Tees, are represented by this system of equations where x is the number of T-shirts and y is

    asked by joanne on May 23, 2016
  8. Thermodynamics

    Wet steam flowing at 4kg/s with a volumetric flow rate of 0.04m^3/s is initially at 80 bar. a) This stream is isovolumetrically cooled and decompressed to 40 bar. What is the total enthalpy change for this process in kW? b) This stream is throttled through

    asked by Kevin on March 1, 2019
  9. chemistry

    I am a freshman in college, and am taking a placement test soon, but haven't seen chemistry since 10th grade. I'd appreciate any help I can get from anyone here to help me solve this problem: Hydrogen and sulfur chemically combine to form the gas hydrogen

    asked by John on January 5, 2012
  10. intro to physics

    A small object of mass m = 2.25 kg is released, starting at rest, from a height h above the ground on a ramp inclined at 45.0o (see figure below). The object reaches the bottom of the ramp and enters a loop-the-loop of radius R = 1.25 m. There is no

    asked by physics help on November 23, 2017
  11. Chemistry

    An aqueous solution of ammonium nitrite decomposes when heated to give off nitrogen gas and water. This reaction can be used to prepare pure nitrogen gas. How many grams of ammonium nitrite must have reacted if 3.75 liters of nitrogen gas was collected

    asked by Sean on October 20, 2014
  12. calculus

    At noon, ship A is 110 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 15 km/h. How fast is the distance between the ships changing at 4:00 PM?

    asked by John on October 13, 2011
  13. math

    Marcia has 350 feet of fence.after fencing in a square region, she has 110 feet of fence left..What is the length of one side of the square?

    asked by riza on July 9, 2015
  14. maths P5

    There were 335 children in a hall. 1/4 of the girls and 2/5 of the boys are swimmers. There are 110 swimmers in all. How many boys are there in the hall? (need non-algebra or model to solve, pls)

    asked by jiejie on September 10, 2011
  15. science/maps

    Can a contour line on a topographic map connect a point with an elevation of 100 feet to a point with an elevation of 110 feet? Explain why or why not.

    asked by linda on February 17, 2011
  16. Algebra

    Start from 110 feet away, a person on a scooter rides towards a checkpoint and then passes it. At what times is the scooter 40 feet away from the checkpoint? My answer is 2.3 to 4.6 seconds

    asked by Aaron on October 4, 2014
  17. math

    When converting Farrenheit to Celcius, why is there only 32degrees difference between the freezing points of 32 and 0, but 110 degrees difference between the boiling points of 210 and 75 degrees?

    asked by michelle on April 1, 2009
  18. physics

    Bill the firefighter stands on an 8 meter ladder of weight 355 Newtons leaning against a smooth vertical wall. The ladder makes an angle of 50 degrees with the horizontal floor. The wall cannot provide any frictional force only a normal force. All

    asked by Anonymous on November 4, 2012
  19. science

    To stop an elevator in free fall, brakes are installed between the walls of the elevator car and the walls of the shaft in which the car moves. In addition, springs with compression coils are installed on the floor, at the bottom of the shaft, in order to

    asked by christine on September 2, 2010
  20. Math - Pleeeease

    Two planes take off at a ny airport. The first plane climbs at an angle of 45 degrees with respect to the ground and reaches an altitude of 5600 feet. The second plane climbs at an angle of 60 degress with respect to the ground and reaches an altitude of

    asked by andra on May 8, 2014
  21. Physics

    We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? Please don't give me the answer! Just help figure out how to find it! The description for the lesson with

    asked by Leila on December 5, 2016
  22. physics

    1. A ball moving horizontally clears a net 2 meters high. What maximum speed can it have if it is to fall within 5 meters of the net? 2.A pulley system lifts a load of 800 Newtons, 20 centimeters while the rope pulling it moves 100 cm. a. How much force

    asked by mimi on October 18, 2011
  23. physics

    sorry mr bob pursley to annoy you again. i read over hooke's law in wikipedia.but i don't know what is k.(my force constant. here my experiment and my values. i did three trials measured force applied of the elastic by streching 50 cm everytime. force

    asked by physics(attempted) on June 13, 2007
  24. Algebra

    Two companies sell software products. In 2010. Company 1 had total sales of $17.2 million. Its marketing department projects that sales will increase by $1.5 million per year for the next several years. Company 2 had total sales of $9.6 million for

    asked by kim on March 11, 2012
  25. Principles of microeconomics

    Thos question comes from Gregory Mankiw Principles of Microeconomics fourth edition. I am not sure how to do this problem. Can you help me please. The government places a tax on the purchase of socks. A. Illustrate the effect of the tax on equilibrium

    asked by Stacie on November 29, 2008
  26. Algebra 1 honors

    Mr. Oliver invested a total of $6400, part at 9% per year and the remainder at 8% per year. At the end of 2 years and 6 months, he had earced a total investment of $1380 in simple interest. How much ded he invest at each rate. I have to come up with the

    asked by Kearse on September 10, 2008
  27. Math

    Write an equation for a line of best fit for the data in the table below. Sandwich Total Fat Total Cals. Hamburger 9 260 Cheeseburger 13 320 Quarter Pounder 21 420 Quarter w/cheese 30 530

    asked by Tae on October 1, 2012
  28. PLEASE HELP!!! ALGEBRA

    A bank teller is counting the total amount of money in a cash register at the end of the day. There is a total of $2600 in denominations of $1, $5, $10 and $20 dollar bills. The total number of paper bills is $235. The number of twenty dollar bills is

    asked by Jona on February 19, 2013
  29. Pre Calculus

    A bank teller is counting the total amount of money in a cash register at the end of the day. There is a total of $2600 in denominations of $1, $5, $10 and $20 dollar bills. The total number of paper bills is $235. The number of twenty dollar bills is

    asked by Jona on February 19, 2013
  30. Math

    Can you help me with my son's homework question: Maria earned $110, which is $86 more than twice the amount Joan earned. How much did Joan earn? a. $12 b. $18 c. $24 d. $30 I would like to know the 5th grade equation that represents the answer. I guess I'm

    asked by Rich on September 3, 2008
  31. CHEMISTRY..please help..thanks

    Calculate the new molarity if each of the following dilutions is made. Assume the volumes are additive. (a) 52.3 mL of water is added to 27.1 mL of 0.124 M KOH solution (b) 110. mL of water is added to 54.2 mL of 0.808 M NaCl solution ((please show work,

    asked by Jasmin on November 10, 2010
  32. physics

    An airplane is heading due south at a speed of 734 km/h . A wind begins blowing from the southwest at a speed of 110 km/h (average). In what direction should the pilot aim the plane so that it will fly due south?

    asked by Al on September 3, 2015
  33. HS credits

    Explain how many total number of credits you will need to graduate with a diploma from your state. how many total math credits do you need? how many credits will you need to become a classified as a tenth grade student?

    asked by Bow on October 9, 2018
  34. Mathematics

    If someone has an 88% in a class and their total quiz grade is 95%, if they were to have a 2% extra credit added to their grade, could their total grade become a 90%? // They think it may have a score similar to 8/5 or 9/5. This is just a regular question

    asked by Sandy East Ward on June 2, 2016
  35. maths

    You deposit $1000 each year into an account earning 8% compounded annually. a. How much will you have in the account in 10 years? b. How much total money will you put into the account? c. How much total interest will you earn?

    asked by colin on July 18, 2012
  36. physics

    a 20 kg loudspeaker is suspended 2m below a ceiling by two 3m-long cables that angle outward at equal angles. what is the tension in the cables?

    asked by sam on November 11, 2010
  37. Geometry

    A circle is drawn inside a triangle ABC to touch the sides BC,CA and AB at P,Q and R respectively.if A=56° and B=68°, find the angles of triangle PQR

    asked by Gbotty on February 23, 2017
  38. Algebra

    If the angles of triangle are in the ratio of4:1:1then find the ratio in the smallest side / perimeter of the tringle

    asked by Math on October 4, 2015
  39. physics

    given a right triangle with hypotenuse of 12.5 cm, side y of 7.2 cm? find length of side x and size of other two angles? so you set it up as pythagoreum theory? 12.5= x^2 + 7.2

    asked by tim on October 20, 2009
  40. math

    Is it possible for the lengths of a right triangle to form a geometric sequence? If yes, determine the lengths and the measures of the acute angles. if it's not possible, explain why not.

    asked by sophie on May 22, 2011
  41. Geometry. HELP!!

    The ratio of the measures of an angle to its complement is 3:2. Find the measures of the angles. (don't give me the answer, just tell me the process, thank you).

    asked by Antonia on September 19, 2011
  42. Math- Geometry

    Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.

    asked by Brian on June 3, 2016
  43. goemetry

    can the following formula to find the sum of the interior angles of a polygon be used on a concave polygon? 180(n-2) where n= the number of sides

    asked by mike on February 24, 2010
  44. math

    the area of a triangle is equal to 48 cm squared and two of its sides measure 12 cm and 9 cm, respectively. find the possible measures of the included angles of the given sides.

    asked by hazel on November 23, 2013
  45. Math

    How would I prove the following (With a formal mathematical proof)?: If a transversal intersects two parallel lines, then the bisectors of two corresponding angles are parallel.

    asked by Jared on October 22, 2008
  46. Math(Please Help Assignment Due Today)

    Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.

    asked by Shayla on June 4, 2016
  47. Math

    The angles of depression of two stones one mile apart on the same side of a tower are 30° and 45° .calculate height of the tower.

    asked by Nisha on March 19, 2017
  48. physics

    A wire that is 0.45 m long and carrying a current of 9.5 A is at right angles to a 0.40 T magnetic field. How strong is the force that acts on the wire?

    asked by Jeff on March 10, 2013
  49. Math

    Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.

    asked by Shayla on June 3, 2016
  50. Math HELP!

    For how many integers x does a triangle with side lengths 10,29 and x have all its angles acute. how do I know which side is the hypotenuse or does it not matter? Please give me an explanation.

    asked by Mark on April 4, 2016
  51. Math HELP!

    For how many integers x does a triangle with side lengths 10.29 and x have all its angles acute. how do I know which side is the hypotenuse or does it not matter? Please give me an explanation.

    asked by Mark on April 4, 2016
  52. Straight Lines

    If y = xtan(11π/24) and y = xtan(19π/24) represents two straight lines at right angles, prove that the angle between the axis is π/4.

    asked by Kewal on January 21, 2012
  53. Geometry

    Find the measure of the third angle of a triangle given the measure of two angles are 86º and xº. A- 86-x B- 90-x C- 94-x D- 180-x My answer was A. Please correct me if I am wrong. Thank you

    asked by Kaashif on October 10, 2016
  54. Maths

    the acute angles of a rhombus are 76 degrees if the shorter diagonal is of length 8 cm calculate of the sides of the rhombus to the nearest mm

    asked by Anita on January 9, 2016
  55. geometry

    Which is not true about adjacent angles? A They are coplanar. B They share a common side. C They have no interior points in common. D They have the same measure.

    asked by brent on October 19, 2016
  56. Math

    In right triangle ABC what is the arithmetic mean (average), in degrees, of the measures of the two smallest angles? Explain how the answer is 45 degrees.

    asked by Sally on March 11, 2013
  57. calculus

    Use vectors to find interior angles of the two triangles with given vertices - round to nearest hundredths Question 1: (-3, -4),(1,7),(8,2) Question 2: (-3,5), (-1,9), (7,9)

    asked by AEF on May 25, 2012
  58. physics

    a motorboat is driven across a river at 5km/h at right angles to a current flowing at 3.9km/h. What is the resulting speed of the motorboat?

    asked by Crystal on January 12, 2012
  59. math

    In an isoceles triangle top vertex is twice the of the sum of the base angle.find all the exterior angles of the triangle?

    asked by phani yej on March 21, 2017
  60. Math

    If the sum of two angles of a triangular garden in West Lafayette is 132 degrees. What is the measure of the third angle in degrees?

    asked by Cheyenne on January 28, 2010
  61. GEOMETRY(POLYGON)

    A regular polygon has interior angles of 150∘. A,B,C,D are 4 consecutive points of this polygon. What is the measure (in degrees) of ∠ADC?

    asked by please help me out!! on April 2, 2013
  62. math

    let x and y be two complementry angles. form an equation and draw its graph. find graphically measures of the other angle. if one of the angle is

    asked by pintu on March 24, 2015
  63. calculus

    Use a graph to estimate the limit: lim θ->0 (sin(5θ)/θ) Note: θ is measured in radians. All angles will be in radians in this class unless otherwise specified.

    asked by Brittany on January 22, 2011
  64. Geometry

    Lesson 9 Unit 2: Geometry Unit Test Part 1 Question 1: *There is an image* Name a pair of complementary angles. A.) ∠1 and ∠4 B.) ∠1 and ∠6 C.) ∠3 and ∠4 D.) ∠4 and ∠5

    asked by Tristan on March 1, 2019
  65. Geometry

    Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.

    asked by Brian on June 3, 2016
  66. geometry

    A board on the wall in Jeremy's class has 4 right angles, 4 equal sides, and 2 pairs of parallel sides. Which quadrilateral is it?

    asked by Ms.Vargas on April 3, 2013
  67. Math

    If the measure of an interior angle of a regular polygon is 165, find the sum of the measures of its interior angles

    asked by Erin on October 3, 2014
  68. Calculus

    Show that the curves r=acos(è) and r=cos(è) intersect at right angles. can it be shown that the derivative of one is the negative reciprocal of the derivative of the other?

    asked by Amy on April 5, 2007
  69. physics

    how do you find the magnitude of the verticle component of velocity of a projectile just before it strikes the ground if you know the horizontal component but no angles?

    asked by gael on September 27, 2008
  70. math

    Find the measure of the third angle of a triangle given the measure of two angles are 86º and xº. A. 86-x B. 90-x C. 94-x D. 180-x My answer was A. Please correct me if I am wrong. Thank you

    asked by Kaashif on October 10, 2016
  71. math

    Two angles are complementary. One angle is twice the other. The largest angle has a measure of what. 120, 60, or 45

    asked by Nina on January 15, 2012
  72. geometry

    One of the angles in a right triangle has a measure of 73 degrees. What is the measure of the other acute angle?

    asked by Anonymous on November 1, 2011
  73. Math

    Find the third angle of aright angle if one of the angles measures 24 degrees

    asked by Trevor on January 18, 2012
  74. Math

    Find the third angle of aright angle if one of the angles measures 24 degrees

    asked by Trevor on January 18, 2012
  75. 12th grade

    i need help, can someone determine the quadrant in which the angles lie? pie/5 7pie/5 -pie/12 -2

    asked by ashley on March 21, 2010
  76. geometry

    Solve for the value of y and the measures of angles 1 and 3. m angle 1=(10y+2) m angle 3=(12y-8)

    asked by sarah on October 6, 2010
  77. geometry

    angle xoz (5m-5) angle yoz (7m+29) these are supplementary angles. How do you solve?

    asked by D on January 4, 2013
  78. Math

    Which quadrilateral has four congruent sides, its opposite sides are parallel, and does not have four right angles?

    asked by Tony B. on April 22, 2014
  79. math

    Draw a trianglw whose perimeter is 13.3 cm and base angles are 45 degree and 60 degree

    asked by khushi on August 19, 2018
  80. Algebra 2

    The measures of an angle and its complement differ by 22 degrees. What are the measures of the angles?

    asked by Kathy on September 6, 2010
  81. Geometry

    1. AB has endpoints A(8,K) and B(7,3). The slope of AB is 5. What is K? 2. Two angles of a triangle measure 68 and 54. What is the measure of the third angle?

    asked by Chelsey on July 27, 2013
  82. pleeaasee hellpp!!

    A and B are positive acute angles. If sin A=(3/5) and cosB= (12/13) find the value of sin (A+B)

    asked by Please Answer :) on May 26, 2010
  83. geometry

    what polygon has exactly three side of equal lenghth and exactly two angles of equal measure?

    asked by Stevi on January 20, 2010
  84. geometry

    The measure of the angles of a triangle are in the ratio 3: 3: 4. Find the measure of each angle.

    asked by MELI on April 21, 2008
  85. Trigo

    Find all angles between 0 and 2 phi inclusive which satisfy cot 2z = 1 + cot z

    asked by Tan on February 10, 2019
  86. math

    The measure of one angle is 30 degrees less than one-third the measure of its supplement. Find the two angles.

    asked by lea on March 14, 2012
  87. geometry

    one of the acute angles in a right riangle has a measure of degrees. what is the other acute angle?

    asked by lisa on July 14, 2011
  88. algebra

    the three angles of a triangle are 3x,x+10, and 2x-40. Find the size of the smallest angle in a triangle

    asked by miles on October 26, 2010
  89. trig

    Suppose that sin x = 1/5 and cos y = 2/3, and x and y are each angles in Quadrant 1. Determine sin(x+y).

    asked by jj reddick on October 22, 2010
  90. Math

    The angles of a quadrilateral in the ratio 2:3:4:1 . Find the measure of each angle of the quadrilateral.

    asked by Shahana on August 4, 2016
  91. Geometry

    If one angle is 2x+y and the other angle is 10x-4y how do you solve it? They are both right angles. Do you set them equal to each other?

    asked by Bryce on September 25, 2012
  92. Vectors

    Consider the parallelogram with verticies (0,0), (3,0), (5,3) and (2,3). Find the angles at which the diagonals of the parallelogram intersect.

    asked by Ally on May 22, 2010
  93. geometry

    whats the angle of a perpendicular bisector if the angles are x-2 and the other angle is 80 degress?

    asked by Anonymous on February 17, 2011
  94. Math

    If two angles are complementary and one angle measures 35 degrees, what is the measure of the other angle?

    asked by Danee on October 6, 2011
  95. Math

    When the measure of two angles are equal, what can be the said of the measures of their supplement? What can be the said of the measures of their complement?

    asked by Jillian on November 19, 2017
  96. Math

    The ratio of the measures of the three angles of a triangle is 2:5:8. What is the measure of each angle of the triangle.

    asked by MP on January 18, 2013
  97. geometry

    Two angles

    asked by Max R on November 1, 2011
  98. math

    if angle 1 and angle 2 are supplementary angles, then one of them must be acute. Counter exmaple?

    asked by boberto on January 27, 2016
  99. Math

    The measure of two complementary angles are in the ratio 7:11. What is the measure of the smaller angle?

    asked by helen on February 23, 2012
  100. Physics

    True or false Consider a simple frictionless roller-coaster. It begins at x = 0, at a height of y = H. Then it drops into a dip, reaching a minimum at x = 100, with zero height (y = 0). Finally, it goes back up at x = 200, but only reaches a height of y =

    asked by Monica on March 12, 2014