1. Pre-Algebra (Pythagorean Theorem)

    Russell Gossman is training for the Olympics. He wants to know the distance across Lake Royal so he can write how far he went in his training logbook each day. If from one point on the shore to one side in 13 km and from the same point to another side of
  2. Geometry

    In Triangle RST, SR < ST and RT > ST. If angle R = 2x + 10 and angle T = 3x - 25, which is a possible value of x? f. 25 g. 30 h. 35 j. 40 So far I've just drawn a picture for reference and I've been pondering about the problem for about 15 to 20
  3. Geometry/Trig.

    Let angle A be and acute angle in a right triangle. Approximate the measure of andgle A to the nearest tenth of a degree. cos A = 0.11
  4. Maths

    In the triangle ABC, AD is perpendicular to BC. Angle CAD=y and angle DBA=x. AC=17 and BD=25 units Find the value of 5cosx -17siny+tanx
  5. Precedence rules for the algebra community

    Precedence of operators In simple algebra, there is a set of precedence (priority) of operations that should be respected in order that everyone evaluates mathematical expressions in the same way. Although these rules have been taught in elementary school
  6. Geometry

    Can a triangle have sides with lengths 7, 13, and 9?
  7. math

    what is the height of a triangle whose sides are 13 , 20 and 21 cm
  8. Math

    How to find sides of a right triangle?
  9. geometry

    if x, x+3 and y are the lenghts of the sides of a triangle then _<y<_
  10. Math

    How many of the triples below could be sides of a right triangle? (40,41,58); (10,25,26); (16,30,33); (20,48,52) A)4 B)2 C)1 D)3 Please help!!!!
  11. Geometry

    Is it possible for a triangle to have sides with the following lengths: 5, 9, 15?
  12. Algebra2

    in the triangle ABC, the measure of angle b=21 more than three times the measure of angle A. the measure of angle C=54 more than the measure of angle A. find the measure of each angle
  13. physics projectiles

    A ball is thrown with an initial velocity of 20mls at an angle of 30 to the horizontal calculate time of flight maximum height the horizontal range of the ball (2)A bullet is fired with a velocity of 50meter per seconds at an angle 0 to the horizontal
  14. Math

    A triangle has an angle whose sine is equal to 1/2. The angle is larger that 43 degrees in measure. Find the exact measure (in degrees) of the angle. I did sin x = 1/2 and got 150 for the answer Is this right? Thank You!
  15. math

    Describe the distance of point P from the far left or right of the center of the wheel as a function of the angle of the rotation. Assume that the wheel is rotating counterclockwise and the angle of rotation,theta, is the angle between the horizontal ray
  16. math geometry

    how do i find the value of x in a triangle when in one angle says 2x, another angle is 3x, and another is just x.
  17. trig

    In triangle XYZ, angle X = 90°, angle Y = 38°, and z = 4'5". Find y
  18. ggggg

    in a triangle one angle is twice of other and their sum is the third angle .the angles are
  19. math

    Anthony has 7 bills. All the bills are tens or twenties. The bills Anthony has total $100 in value. How many of each hill does Anthony have? Pretty sure the solving method is solving systems of equations but you have to isolate the variables and stuff..
  20. MATH HELP

    The south edmonton pet shop has several parrots and dogs for sale. There are a total of 24 heads and 82 legs in the display cages. A) Write a system of linear equations to represent the number of parrots, p, and the number of dogs, d, for sale. p+d = 24
  21. language arts

    idntify gerunds and then write how its used:S is subject PN predicate nominative DO direct object OP object of a preposition 1)CHEERING the team gave me a sore throat 2)Joanna's mother enjoys PRESERVING fruits and vegetables 3)We stopped him from TELLING
  22. MATH

    A farmer wants to fence a small rectangular yard next to a barn. Fence for side parallel to the barn will cost 50 per foot and the fence for the other two sides will cost20 per foot. The farmer has a total of 2000 dollars to spend on the project. Find the
  23. math- 165 calculas

    An open box is to be made from a eighteen-inch by eighteen-inch square piece of material by cutting equal squares from the corners and turning up the sides (see figure). Find the volume of the largest box that can be made. figure ( a box and one side is
  24. Trigonometry

    Two observers who are 2 miles apart on a horizontal plane observe a balloon in a same vertical plane with themselves. the angles of elevation are 50 degrees and 65 degrees respectively. find the height of the balloon,(a)if it is between the observers;(b)if
  25. science

    What happens when a candle is alight (on one side we had to show physical change and on other side the chemical change). The question sheet says 'Explained both changes using the Big Idea of Energy.' The physical changes are what you can see, and what you
  26. college Algebra

    A rectangular fence is to be built along a river using the river as one side of the fence.the cost of the fencing for the two ends is $8 per sq ft and the cost of the fencing for the side running parallel to the river is $12 per sq ft. If you have $3600 to
  27. stemplot one more question

    No, I don't think you should round the data. The stems should probably be the numbers 13,14,15,...,19 Line them up like this with the leafs to the right S L 13 |9 14 |8,9 15 |2,8 . . . You can finish it. Starting the stems with 1 would accomplish nothing
  28. hirsch funnel filter paper

    I used a filter paper that was too large for the Hirsch funnel and had to fold it up around the edges. Why is it bad to fold the edges of the paper? One reason is that it is difficult to "seal" the paper for a proper vacuum to be pulled. Another is that
  29. Physics

    A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y
  30. Physics

    A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y
  31. Physics

    A circular track has several concentric rings where people can run at their leisure. Phil runs on the outermost track with radius rP while Annie runs on an inner track with radius rA = 0.90 rP. The runners start side by side, along a radial line, and run
  32. math

    a farmer must get a mouse, a cat and a block of cheese across the river. He will make three trips. He can not leave the cat and mouse together on either side and he can not leave the mouse and cheese together on either side. How will he get them across the
  33. PLEASE ANSWER THIS!!!

    Two trees stand side-by-side. The shorter tree is feet tall. Its shadow is 9 feet long. The taller tree is feet tall. How long is its shadow?
  34. Math

    A spider and a fly are in a room that has length 8 m, width 4 m, and height 4 m. The spider is on one end wall 1 cm from the floor midway from the two side walls. The fly is caught in the spider’s web on the other end wall 1 cm from the
  35. science physics

    a small aircraft experiences s lift force equal to 3.8 times of its weight. a)draw a diagram to show the forces acting on the aircraft when it is flying in a horizontal circle with its wing banked at an angle to the horizontal b)determine the maximum bank
  36. trig

    I am having trouble figuring these two out The directions say find all solutions to the triangles described below. Round each angle to the nearest degree and the length of the missing side to the nearest tenth at the end of the computations C= 27 degrees
  37. Square roots

    The diagonal of a square has length square root 2 X s, where s is the length of a side of the square. What is the length of the diagonal in a square with sides that are 13 cm? Round your answer to the nearest tenth.
  38. cubic function

    I am absolutly stumped at how to solve this. I know for squared functions you take the square root of both sides to solve for x but what about if one side is cubed. I know you would have to take the cubed root of the function but how do you do this on a
  39. Algebra

    A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5 inches on a side and then folding the sides. The piece of sheet metal is twice as long as it is wide. If the volume of the box is to be 1760 in^3, what are the
  40. Math

    Chiang picked 12 apples. She gave 1/6 of the apples to each of her 5 friends. How many apples did each friend get?
  41. math

    Ashley is having a pizza party she invited 11 friends. She has 1 3/4 of a pizza. How much pizza will each friend get?
  42. algebra

    Carmen has 6 CDs that she is going to give away. She let her best friend choose 3 of the 6 CDs. How many different groups of 3 CDs are possible?
  43. geo

    George and phil were playing with their fish tank again. they had a difficult time keeping their fish tank is 100 cm long, 60 cm wide and 40 cm high. they tilted the tank resting on a 60 cm edge, with the water level reaching the midpoint of the base. when
  44. math

    whats a consecutive side and whats a consecutive angle?
  45. Math

    Help if you can! Thanks! Appreciate it! The length of one side of a square is approximately 181 inches. Which could be the length of one side of the square? A. 13.5 inches B. 19 inches C. 90.5 inches D. 109 inches
  46. physics

    the shape of sugarloaf mt. in rio de janeiro, brazil is such that if you were to kick a soccer ball hard enough, it could land near the base of the mountain without hitting the mountain's side. Suppose the ball is kicked horizontally with an initial speed
  47. Geometry

    1. An airplane is flying at 36,000 feet directly above Lincoln, Nebraska. A little later the plane is flying at 28,000 feet directly above Des Moines, Iowa, which is 160 miles from Lincoln. A.assuming a CONSTANT rate of descent, what was the angle of
  48. math

    A cow is tethered by a piece of rope 50 meters long to the side of a rectangular barn. The rope is fastened to a hook (on the barn) that is located 20 meters from the corner along the longest side of the barn which measures 70 meters by 20 meters. Over how
  49. physics

    Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of anequilateral triangle. The magnitude of each charge is 5 microCouloumbs, and the lengths of the sides of the triangle are
  50. physics

    An artillery shell is launched on a flat, horizontal field at an angle of α = 31.5° with respect to the horizontal and with an initial speed of v0 = 266 m/s. What is the horizontal distance covered by the shell after 9.44 s of flight? What is the
  51. phsics

    An artillery shell is launched on a flat, horizontal field at an angle of α = 31.5° with respect to the horizontal and with an initial speed of v0 = 266 m/s. What is the horizontal distance covered by the shell after 9.44 s of flight? What is the
  52. physics

    An artillery shell is launched on a flat, horizontal field at an angle of α = 31.5° with respect to the horizontal and with an initial speed of v0 = 266 m/s. What is the horizontal distance covered by the shell after 9.44 s of flight? What is the
  53. trig

    a hedgehog wishes to cross a road without being run over. he observes the angle of elevation of a lamp post on the other side of the road to be 27 degrees from the edge of the road and 15 degrees from a point 10m back from the raod. How wide is the road??
  54. Trig

    a. Form a pair of simultaneous equations by letting y1 equal the left side and y2 equal the right side of sqrt 5-x=1. b.Repeat part (a) with the equivalent equation sqrt 5=x+1 c. Repeat part (a) with the equivalent equation sqrt 5-x-1=0
  55. geometry

    In an isosceles triangle ABis congruent to BC. Measure of angle A is x +3y and the measure of angle C is 3x +2y. The measure of angle C is 63 degrees. Find x and y.
  56. help with math please

    a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the
  57. math

    a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the
  58. CALCULUS

    gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the
  59. arithmetic

    The measure of two angles of a triangle are 35* and 45*. What is the measure of the third angle of the triangle? A. 95* B. 100* C. 105 D. 110*
  60. Geometry

    In triangle ABC, AD bisects angle A, BD=4 and CD=5. The perimeter of triangle ABC is 29. Find the lengths of AB and AC.
  61. Math

    One angle of an isosceles triangle measures 80 degrees. Witch other angles could be in that isosceles triangle?
  62. maths

    an isosceles triangle is such that each of the base angles is twice the vertical angle. Find the angles of the triangle
  63. french

    how do you remember all those words I always made vocabulary cards with the (French, Spanish, Latin, etc) on one side and the English on the other. Sometimes I would make the cards with the definition on one side and the word on the other. Then if I didn't
  64. physics

    A vehicle with a mass of 2 tons travels on a horizontal road at a speed of 126km/h.The driver notices a donkey at the side of the road and decides to reduce speed. The brakes are applied and the vehicle slows down to 72km/h after 5 seconds. Calculate the
  65. physics

    Initially, a particle is moving at 4.20m/s at an angle of 34.5∘ above the horizontal. Two seconds later, its velocity is 6.50m/s at an angle of 50.0∘ below the horizontal. What was the particle's average acceleration during these 2.00 seconds?
  66. Math

    Adam made 19 paper cranes Monday and 8 more Tuesday He gave 9 friends an equal number of cranes. How many cranes did each friend receive? Explain
  67. Art

    I left out a sentence. Can you help me better express the following instruction? 1) Complete the following sentences with the past simple, past perfect, and past continuous. 1) My friend..... (be) upset because someone.....(steal) ........
  68. MATHS

    In triangle ABC, BC is produced to D. If angle ACD = 110 degree and angle ABC = 70 degree. Find angle BAC. Give reason.
  69. Math

    Prove: If the hypotenuse and an acute angle of one triangle are congruent respectively to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent.
  70. inermediate algebra

    A box with no top is to be made by cutting a 2-inch square from each corner of a square sheet of metal. After bending up the sides, the volume of the box is to be 220 cubic inches. Find The the length of a side of the square sheet of the metal that should
  71. Algebra

    45foot ladder is leaning against a building. The base of the ladder is 27 feet from the side of the building. How high does the ladder reach along the side of the building? ladder reaches ___ feet high on the building.
  72. physics

    if a negative charge particle is placed on the left side and a higher positive charge particle is placed on the right side, why is the location that makes electric field zero is on the left of negative charge rather than in between or on the right of
  73. physics

    A transparent cube with index of refraction n = 1.6 and side length a = 4.0 cm is free to rotate about an axis passing through its center. A laser beam is aimed at the cube. After passing through the cube the beam hits a screen on the other side forming a
  74. physics

    A transparent cube with index of refraction n = 1.6 and side length a = 4.0 cm is free to rotate about an axis passing through its center. A laser beam is aimed at the cube. After passing through the cube the beam hits a screen on the other side forming a
  75. Physics

    the coefficient of kinetic friction between both blocks and the table is .200. determine the accelerations of blocks A and B each of which has a mass of 5.0kg The diagram shows a table with two blocks labeled A and B on them. A is connected to a rope that
  76. physics

    Proper design of automobile braking systems must account for heat buildup under heavy breaking. Calculate the thermal energy dissipated from brakes in a 1500 kg car that descends a 17° hill. The car begins braking when its speed is 95 km/h and slows to a
  77. Thermal Physics, Kinetic Theory of Gases

    Oxygen (O2) has a molar mass of 32 g/mol. (e) Suppose an oxygen molecule traveling at this speed bounces back and forth between opposite sides of a cubical vessel 0.10 m on a side. Find the average force it exerts on one of the walls of the container.
  78. Environmental Engineering

    Consider the air over a city to be a box 100km on a side that reaches up to an altitude of 1.0 km. THe air is blowing into the box along one of its sides with a speed of 4 m/s. Suppose an air pollutant with a reaction rate of K = 0.20/hr is emitted into
  79. english help please!!

    Which of the following is a strong post-reading strategy? Paraphrase each line of the entire story by hand. Write an essay without looking at your notes. Discuss difficult concepts with other people. *** Loan the book to a friend to read after you. is it c
  80. Engineering/Shop

    I've been asked to help a friend make a longsword. Aiming for a length of 3 to 4 feet, what metal should I use to give it a weight of 50 pounds or less? I've experimented with steel, but that is too heavy to fit dimensions. I was thinking titanium or
  81. Technical Physics

    Consider a hypothetical situation, where your friend suggests leaving the refrigerator door open to help cool the house on a hot summer day. Discuss what will happen to the temperature of the room. Will it decrease, increase, or stay the same and why?
  82. Grammar

    Which of the sentences below displays the correct punctuation? A.The patient looked at the doctor as though he had never seen her before. B.Even though Laura is very young she is already a skilled chess player. C.Carlos asked me to buy the gift, since I am
  83. MTH 157

    I need help on these two questions. 1. Describe what happens to the three points of concurrency that determine the Euller lines when the triangle is (a) isosceles, (b) equilateral 2. Which of the following triples of numbers can be the sides of a right
  84. Physics

    One mole of tungsten has a mass of 184 grams, and its density is 19.3 grams per cubic centimeter, so the center-to-center distance between atoms is 2.51×10-10 m. You have a long thin bar of tungsten, 2.2 m long, with a square cross-section 0.16 cm on a
  85. heat transfer

    a plane wall of thickness 10 cm and thermal conductivity of 25w/m degree centigrade has a volumetric heat generation of.3*10 to the power 16w/mque .the wall is insulated on one side & other side is exposed to fluid at90 degree temperature . determine
  86. Math

    Calculate the perimeter of the triangle formed by the middle points of the sides of the triangle formed by points A(-8,6) B (2,5) and C (1,7) I've already got the distance between all the points given but I do not know what to do next. Can you help me?
  87. English

    1. While he was based on the sketches, Degas painted in his studio. 2. While he was walking on the street, he met a friend of his. 3. While he was driving, he sometimes smoked. 4. While he was chatting, he drank coffee from time to time. (What about the
  88. Social Studies

    I asked my son to visit a sick friend, his favourite film is on tv that night. He's form, but decides to visit anyway. Am I correct when I say according to G.H. Mills 'the generalised other' governed his behaviour. or is the the significant other
  89. com 140

    In what ways are purpose, audience, tone, and content different for interpersonal and business communication?Consider your own experience as you answer this question. If you have not worked in a business environment, you may ask a friend, parent, or other
  90. sentence writing

    Which sentence below grammatically INCORRECT? Jacob, my best friend, believes that he is as smart as I am. -------------------------------------------------------------------------------- If anyone understands the directions, it is she.
  91. Health

    I have to do a 1 page essay on "Protecting yourself in Public". Now, our teacher just gives us work, she doesn't lecture us. Also I think it is due tomorrow (at least that's what my friend told me), and she assigned it today. So I tried looking on Google
  92. Math Alg 1

    I never understood the system of inequalities and using a graph, help? Plot the graph as if there were an equal sign instead of > or < ; then use logic to decide where (which side of the line) the possible solutions exist. Example: for x>2, Plot
  93. physics

    A simple pendulum is made by attaching a small cup of sand with a hole in the bottom of a 1.2 m long string. The pendulum is mounted on the back of a small motorized car. As the car drives forward, the pendulum swings from side to side and leaves a trail
  94. Chemistry

    Below is the question I am trying to answer. I think after much debate, I may have it. Does anyone know if I am close to being right? Does cis and trans isomeric compounds display different properties? Why? Cis means on the same side and trans means on the
  95. physcis

    in order to determine the width of a river, a base line of 100 ft is marked off on one side. On the other side of the river is a large rock. When sighted from each end of the base line it is found that the lines of sight make angles of 60 degrees and 75
  96. Chemistry

    Below is the question I am trying to answer. I think after much debate, I may have it. Does anyone know if I am close to being right? Does cis and trans isomeric compounds display different properties? Why? Cis means on the same side and trans means on the
  97. Trigonometry

    Suppose a triangular silk scarf has both of its shortest sides 14 inches long. If the angle between these sides is 110º, what is the area of the scarf? Round your answer to the nearest tenth of a square inch. (Enter only the number.)
  98. lA cont.

    identify Gerund and gerund phrase write how its used:S for subject PN for predicate nomitave DO for direct object or OP object of a prepsition CHEERING THE TEAM gave me a sore thorat: S Joanna's mother enjoys PRESERVING FRUITS AND VEGETABLES:DO We stopped
  99. math, drbob222

    For this problem is it only asking for the exprssion(formula). Or do they want me to solve it. (1) A triangle has sides 3x+7,4x-9,and 5x+6. Find the expression that represents its perimeter. My answer:P=a+b+c I think the question is asking for the
  100. English writing

    Q you have recently returned to live in your home country after being up abroad for the last three years. You find that many things have changed. Now that you are home, writes a letter to a friend. In your letter you should: This drive how you are feeling