You and your friend are sledding on two sides of a triangle-shaped hill. On your side, the hill slopes up at 30.0° from the horizontal; on your friend's side, it slopes down at the same angle. You do not want

80,744 results, page 70

  1. math

    find the largest possible value of s=2x+y if x and y are side lengths in a right triangle whose hypotenuse is 5 units long. My answer : (5)^2 = x^2 + y^2 y^2 = 5 - x^2 y = 5-x^2 Substituting y to s, S = 2x + y = 2x + 5-x^2 To find the largest possible ...
  2. MAT LAB

    HW9_1: AXIAL AND TRANSVERSE STRAINS - THE POISSON'S RATIO When no loads are applied, the isotropic elastic block depicted below is a cube of side L0=200 mm. When the distributed load (surface traction) q=200 MPa is applied as shown below, the side length along the direction of...
  3. 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
  4. Math

    You are making necklaces for your friends. You have 72 blue beads and 42 red beads. Each friend will riecive an identical necklace, and all your beads must be used
  5. physics

    Two masses of 2kg,4kg and 6kg are placed at 4 corner of a square of side 1 metre find gravitational field intensity gravitational at centre.
  6. 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 minimum cost
  7. 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 minimum cost
  8. Calculus - Optimization

    A fence is to be built to enclose a rectangular area of 800 square feet. The fence along 3 sides is to be made of material $4 per foot. The material for the fourth side costs $12 per foot. Find the dimensions of the rectangle that will allow for the most economical fence to be...
  9. Intro to Algebra

    The cost for paint to cover the exterior of the four sides of a shed was $40. A can of paint costs $10 and will cover 33 square feet. The shed consists of four sides, each shaped like a trapezoid. They each have one base of 5 feet and one base of 6 feet. What is the altitude ...
  10. Children's Literature Question

    Which statement is true? 1.Setting is a backdrop that can be changed without affecting the plot. or 2.Good plot builds logically and plausibly with casual relationships connecting all the events. I say 2 is true, my friend says 1 is true. Who is correct? I would go with #1 ...
  11. Physics

    A motorcycle has a constant speed of 24.0 m/s as it passes over the top of a hill whose radius of curvature is 129 m. The mass of the motorcycle and driver is 330 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on the cycle. I found the ...
  12. problem solving

    A ladder 5 meters long leans against a wall, reaching over the top of a box that is 1 meter on each side. The box is against the wall. What is the maximum height on the wall that the ladder can reach? The side view is: Assume the wall is perpendicular to the floor. Use your ...
  13. Physics Please Help

    Two forces, F1 and F2, act on the 5.00 kg block shown in the drawing. The magnitudes of the forces are F1 = 69.0 N and F2 = 24.5 N. What is the horizontal acceleration (magnitude and direction) of the block? F1 is pointing at the top left corner of the box forming a 65 degree ...
  14. math

    2. How is the graph of y = –2x² – 5 different from the graph of y = –2x²? (1 point) It is shifted 5 units up. It is shifted 5 units down. It is shifted 5 units left. It is shifted 5 units right. 3. A model rocket is launched from a roof into a large field. The path of ...
  15. Algebra

    The ratio of the corresponding side lengths of two rectangular tables is 4:5. What is the ratio of the perimeters? What is the ratio of the areas?
  16. math

    The diameter of a hydrogen atom is about 5×10^-11 meter. Suppose 8.4×10^8 hydrogen atoms were arranged side by side in a straight line. Multiply these numbers to find the length of this line of atoms. What is the length in scientific notation? 42×10^−3 meter 0.042 ...
  17. Trigonometry

    A wheelchair ramp has an angle of 6 degrees,side length 29ft and height 3ft. For a safe ramp,the ratio of vertical distance: horizontal distance needs to be less than 1:12. Would the ramp be considered a safe ramp? Please show me how to do this! Thank you
  18. Math

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

    Which is the correct ratio of sides for a 30-60-90 triangle
  20. math

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

    find the area of a triangle where sides are 25, 25 and 14
  22. Geometry

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

    If a, b and c are sides of a triangle Then prove that 1≤ [(a^2+b^2+c^2)/(ab + bc+ca)]
  24. Geometry

    For what value of a is there a right triangle with sides a+1, 6a, and 6a+1?"
  25. math

    Classify the triangle with sides of lengths 24, 24, and 4
  26. geometry

    The area of a triangle with sides 10,10,12 is __ sq. units.
  27. English

    1. I believe her to be very careful. (Can we omit 'to be' in this sentence?) 2. It's already summer. Leaves are dark green. 2-1. It's already summer. Leaves have dark green. (Which one is correct?) 3. He kept her delicious cake. 3-1. The game kept me excited. (Are both ...
  28. english lit

    why is the poem "i know why the caged bird sings" is a good poem. I know why the caged bird sings by Maya Angelou The free bird leaps on the back of the wind and floats downstream till the current ends and dips his wings in the orange sun rays and dares to claim the sky. But a...
  29. College Algebra

    A farmer has 100 yeards of fencing with which to enclose two adjacent rectangular pens both bordering a river. The farmer does not need to fence the side with the river. What should the dimensions of the two pens together (a rectangle) be in order to yield the largest possible...
  30. math

    1. Write the ratio in simplest form 50:10 A 25:5********** B 10:2 C 5:1 D 1:5 3. A recipe calls for 4 cups of sugar to make 4 dozen cookies. Use the proportion to calculate how much sugar is needed to make 8 dozen cookies. 4 cups / 4dozen = X cups / 8dozen A 2 cups B 8 cups...
  31. Calculus test tomorrow

    A plane flying with a constant speed of 24 km/min passes over a ground radar station at an altitude of 5km and climbs at an angle of 35 degrees. At what rate, in km/min, is the distance from the plane to the radar station increasing 4 minutes later? I know side A=5 but how do ...
  32. 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 maximum temperature in ...
  33. math

    Two angles of a triangle have the same measure and the third one is 15 degrees greater than the measure of each of the other two. Find the measure of the LARGEST angle in the triangle.
  34. Algebra

    Two angles of a triangle have the same measure and the third one is 9 degrees greater than the measure of each of the other two. Find the measure of the LARGEST angle in the triangle.
  35. Algebra

    Two angles of a triangle have the same measure and the third one is 51 degrees greater than the measure of each of the other two. Find the measure of the LARGEST angle in the triangle.
  36. math

    1. An equilateral triangle is similar to a scalene triangle. 2. Two congruent polygons are similar. 3. Two rectangles are similar. Can you please tell me if each of these are always, sometimes, or never true.
  37. algebra

    Volume of a Box A box is constructed by cutting out square corners of a rectangular piece of cardboard and folding up the sides. If the cutout corners have sides with length x, then the volume of the box is given by the polynomial A box is constructed from a square piece of ...
  38. math

    a=3,b=2,c=2 would this make a triangle? if so, how would i find the angles? thanks for helping. You would find the angles using the cosine law. When all three sides are given to a triangle, you can solve for each angle.
  39. social studies

    Name two advances made by Indian mathematicians without which computers would be impossible today. Zero's and algorithms are two advances made by Indian mathematicians. ^ is that all that I should put? because it does say "Short answer" in bold above the question. Also I know ...
  40. 5th grade

    mary had 10 yards 2 feet of ribbon. She needed to cut peices for her 3 friends. If each friend got the same amount of ribbon, how much did each get? In your answer, there cannot be more than 12 inches.
  41. Spanish

    If a friend invites you to the movies and you are busy, what would be a appropriate answer? A. Tengo que bailar B. Lo siento , estoy ocupado/ocupada*** C. Estoy muy cansado/cansada D. No quieres
  42. 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 acceleration of the ...
  43. Word Problem

    I have a couple of questions. Could you please check one of them and help me with one? 1. You have a 256 feet of fencing to enclose a retangular region. Find the demensions of the rectangle that maximize the enclosed area? This is what I did: a=xy 2x+2y=236 I subtacted 2x from...
  44. Geometry

    The ratio of the volume of cube A to the volume of cube B is 64 to 27. Use this information to determine the ratio of the length of a side of Cube A to the length of a side of cube B.
  45. Math

    A circle of radius greater than 9 cm is inscribed in the square ABCD. A point P on the circle is 8 cm from side AB of the square, and 9 cm from side AD. What is the radius of the circle? D-----------C | | | | <---circle inscribed in it | | | | A-----------B
  46. 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 minimum cost
  47. Math

    company will enclose a rectangular area of 12 comma 600 ft squared12,600 ft2 in the rear of its plant. One side will be bounded by the building and the other three sides by​ fencing, as shown to the right. If 320 ft320 ft of fencing will be​ used, what will be the ...
  48. English

    I forgot to include the following sentences. Thank you very much for your invaluable help. 1) I went to church for (the) Christmas Mass. 2) How many hours (or just: how long is possible) did it take you to get there? 3) How many days (or just: how long) did your holidays last...
  49. Trigonometry (Math)

    A ladder 42 feet long is place so that it will reach a window 30 feet high (first building) on one side of a street; if it is turned over, its foot being held in position, it will reach a window 2o5 feet high (second building) on the other side of the street. How wide is the ...
  50. Algebra 1

    You are designing a wall mural that will be composed of squares of different sizes. One of the requirements of your design is that the side length of each square is itself a perfect square. 1. If you represent the side length of a square as x^2, write an expression for the ...
  51. math

    The hypotenuse of a right triangle is 1 cm more than twice the shorter leg, and the longer leg is 9 cm less than three times the shorter leg. Find the lengths of the three sides of the triangle..
  52. spanish

    Found one I missed. question: Ask your friend wha tgift she/he is planning on giving her cousin Answer: Mis amigos que regalo son usted planear dar a su primo is this correct thank you for all of your help.
  53. physics

    A mountain climber friend with a mass of 80kg ponders the idea of attaching a helium-filled balloon to himself to effectively reduce his weight by 25% when he climbs. He wonders what the approximate size of such baloon would be.
  54. LAnguage arts

    Which sentence correctly uses a predicate pronoun as a subject complement? a. The last arrivals were Joe and I b. this year's soccer champions were lana and me c. the tribute deeply touched my brother and i d. my boyfriend became my best friend is it a?
  55. phyiscs

    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
  56. english

    Jake said to his friend I know all of the colours of the rainbow. They are red orange yellow green blue indigo and violet. Please suggest speech marks, commas and full stop for the above sentence.
  57. US History

    Could you pls check this time line 1, king George issues Proclamation of 1763 2, stamp act 3. Sons of Liberty 4. Boston Massacre 5. Boston Tea Party 6, coersive acts 7, 1st continental congress 8. 2nd continental congree 9. First sho of American revolution 10. Bunker hill ...
  58. Calculus

    RP^2=RQ^2 + QP^2 -2(RQ)*(QP)cosQ (1) QP = 24 (km/min) t (2) Diffentiate both sides w.r.t. the time t: 2 RP* d Rp/dt = 2 t [24 (km/min)]^2 -2(RQ)* 24 (km/min) cosQ (3) Using (1) and (2) you find out what RP is at t = 4 minutes. You plug that into (3) and solve for d Rp/dt. A ...
  59. PRE CALC

    1. solve tan36 degrees- tan2degrees/ 1+tan36 degrees tan 2 degrees as a single function. 2. Find the exact value of sin (α-β) if sina=4/5 and cos β= -9/41 terminal side of α lies in I and terminal side of β lies in III 3. If cosx=1/12 and sinx > 0, ...
  60. Physics

    An engineer needs to determine the distance across a rive whose banks are approx. parallel. Standing on one side of the bank, the engineer can see the other side. The engineer only has a 30 foot measuring tape ( which is shorter than the distance from one bank to the other) ...
  61. maths

    a pavilion has a roof shaped like a right hexagonal pyramid with a height of 1.9m the sides of the base are 3,5 m long. what is the area of the roof maths gr 11
  62. Economics

    The nominal interest rate is 12 percent per year in Canada and 8 percent per year in the United States. Suppose that the real interest rates are equalized in the two countries and that purchasing-power parity holds. A friend proposes a get-rich-quick scheme: borrow from a US ...
  63. Econ

    The nominal interest rate is 12 percent per year in Canada and 8 percent per year in the United States. Suppose that the real interest rates are equalized in the two countries and that purchasing-power parity holds. A friend proposes a get-rich-quick scheme: borrow from a US ...
  64. English

    1..He (saw, seen) dozens of beautiful yellow roses. 2. He (saw, seen) a film about safety. 3. They saw a car that (ran, run) a red light. 4. Officer Hill (did, done) a good job at our school. 1. saw 2. saw 3. ran 4. did
  65. English

    Posted by rfvv on Monday, November 15, 2010 at 8:41pm. 1. What are they like? -They are brave. 2. What is their presonality like? - They are brave. (Are the questions and answers right and the same?) 3. It is shaped like a fish. 4. They are shaped like fish. (Are both ...
  66. Math

    We need to make an open topped box with a square base and fixed volume of 8 cubic feet. The material for the base costs $ 6 per square foot and the material for the side costs $4 per square foot. Write a function for the cost as a function of the length and side of the base
  67. Math

    16.Eliot spent 24 minutes solving 8 math problems.At that rate, how many math problems can he solve in 54 minutes? a.12 B.16 C.18 D.24 A? 17.Ronald got 92% of the problems correct on a test.Which number could also represent 92%? A.9.2 B.0.092 C.9/2 D.46/50 D 18.Lakeshmi made a...
  68. Physics

    A block of mass m = 2.00 kg rests on the left edge of a block of mass M = 8.00 kg. The coefficient of kinetic friction between the two blocks is 0.300, and the surface on which the 8.00- kg block rests is frictionless. A constant horizontal force of magnitude F = 10.0 N is ...
  69. triginometry

    Two sides of a parallelogram are 9 and 13 with an included angle of 57 degree & 29 minutes.fine the distance between the longer sides.
  70. algebra

    Driving down a mountain, Tom finds that he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. I put the numbers into the equation like: 1800/3.25*5280 1800/17160...
  71. Physics

    A parallel-plate capacitor consists of two square plates 18 Cm on a side, spaced 0.50 mm apart with only air between them. What is the maximum energy that can be stored by the capacitor?
  72. MATH HELP!!!

    Given: A is 20˚, b = 50 cm, for what possible range of lengths of side “a” would ABC have two possible solutions (approximate to 2 decimal places)?
  73. Algebra

    The ratio of the areas of two squares is 32/63. After rationalizing the denominator, the ratio of their side lengths can be expressed in the simplified form (a*sqrt b)/c where a, b, and c are integers. What is the value of the sum a + b + c?
  74. yet another geometry question

    Points D, E and F are the midpoints of the sides of triangle ABC. If AD=6, CF=4 and the perimeter of triangle ABC = 30, then find BE. If D is between A&B, E is between B&C and F is between C&A, then the perimeter is 6+6+4+4 + (twice length of BE)= 30 Solve that.
  75. physics

    A skier is gliding along at 1.13 m/s on horizontal, frictionless snow. He suddenly starts down a 13.1° incline. His speed at the bottom is 18.8 m/s. What is the length of the incline? ------------------------------------ Use his change in kinetic energy to get his loss of ...
  76. chemistry

    1. name this compound ..........CH2CH3 ........../ hydrocarbon hectagon shaped ring ..........| ..........CH3 CH2CH3 are to the right of the "up/down" line on the right side of the hectago with the CH3 directly under the bottom point 2. name this compound CH3-CH=CH-CH2-CH-CH3...
  77. Literature

    11. Which of the following pairs of words may be used as an example of approximate rhyme? a. now and later b. crew and two c. again and friend d. applause and gauze C 13. The women in Walker's poem struggle on behalf of their a. employers b. friends c. teachers d. children D ...
  78. math homework

    two boats A and B left a port C at the same time on different routes. B travelled on a bearing of 150 and A travelled on the north side of B. When A had travelled 8km and the two boats was found to be 12km. Calculate the bearing of A route from C. Show your workings and diagram
  79. Spanish

    Which would you use to say your friend is writing? estan escribiendo estoy escribiendo esta escribiendo estas escribiendo
  80. math!!

    what does median mean...? median is the middle number when u put them in order from least 2 greatest Or... a median is a line drawn from a vertex of a triangle to the midpoint of its opposite side. Another name for the median in statistics is the 50th percentile, indicating ...
  81. Math

    I'm really struggling with this -- I have different table configurations - straight line, L-shaped, plus sign-shaped, and T-shaped. Suppose there are n tables arranged in these patterns. I need to write an expression of the number of tables with 2 chairs. Our teacher gave us ...
  82. gilbert

    1.find the value of X. Simply answers that are radicals. hypotenuse is 10 sides (legs) are 6 and x. the total base is 12. 2. Find the area of the figure. Round decimal answers to the nearest tenth. sides of the triangle is 8 cm and total base is 7 cm
  83. geometry

    The side of one square is equal to 1m, and its diagonal is equal to the side of a second square. Find the diagonal of the second square.
  84. English please help

    I really need someone to check my answers. Cross out prepositional phrases, identify adverbs. 1.) Our maid cleaned the top of the counter and looked amid the groceries throughout the refrigerator. Verb: cleaned, looked Subject: maid Phrase: the top of the counter, throughout ...
  85. English

    my friend also need idea to write about independent story, he not want to do one on human, what he write about animals?
  86. History

    Who is Daniel? A. the man who wrote on the palace wall B. the king of Babylon C. the wisest man in Babylon D. the best friend of Belshazzar
  87. science 7th grade

    if your friend as O + blood and you have A + blood can they use your blood safley for a blood transfusion ? I think you can't
  88. math

    (3 + 2(8 + 5 • 2 ÷ 4) – 9) what is the correct answer to this problem I got 59 when i entered it on my sci-calculator But my friend got a different answer of 15
  89. Math

    9 friends share 12 pounds of pecans equals how many pounds of pecans does each friend get? Please answer soon! :-) :-( :-(
  90. Algebra 1

    In a bike race, a rider covers a 5 mi flat stretch of road at a speed of s mi/h. She then doubles her speed down a hill 1 mi long. Finally, she reduces her downhill speed bu 12 mi/h as she rides the last 3 mi of the race. What function gives the time t it takes the rider ...
  91. Algebra

    In a bike race, a rider covers a 5 mi flat stretch of road at a speed of s mi/h. She then doubles her speed down a hill 1 mi long. Finally, she reduces her downhill speed bu 12 mi/h as she rides the last 2 mi of the race. What function gives the time t it takes the rider ...
  92. Algebra

    In a bike race, a rider covers a 5 mi flat stretch of road at a speed of s mi/h. She then doubles her speed down a hill 1 mi long. Finally, she reduces her downhill speed bu 12 mi/h as she rides the last 2 mi of the race. What function gives the time t it takes the rider ...
  93. Managerial Economics

    What would it mean if an expansion path eventually had a negative slope? Like the letter U on its' side? EY And expansion path that looks like a letter U on its side (like a c or a backwards c?) Dont know. I think a graph of an expansion path would be time on the x axis, some ...
  94. construct a triangle

    How can I construct a triangle ABC with vertices A(-4,2), B(4,3), C(1,-3). what are the angles in order from least measure to greatest measure Since you will have to use trigonometry to find the angles, surely you must know how to plot points. take the slope of each of the ...
  95. math,help,algebra I

    I need help can someone help me get unstuck and let me know if i am correct.thank you. solve by completing the square. 4x^2+2x-3=0 this is what i am doing: i used the quadratic equation. so where i am is in this step: x = (-2 (+-) sqrt (-44))/(8) from this point i am stuck: ...
  96. Math

    a)Write a function o represent the area of the rectangle. one side - 5x+15 other side - 31-2x b) Graph the function- lebel x and yint c)what dp the x-intercepts represent in this situaltion? d)Does the funtion have a maximum value in this situaltion? Does it have a minimum ...
  97. math

    1. a square has a side of 2 decimeters. a new square is formed by joining the midpoints of the sides. If this procedure is reoeated 6 times, what is the perimetet and area of the seventh square 2. find the sum of those numbers between 15 and 810 which have 8 as their units ...
  98. Physics (math)

    Fayce Slift found that it took her 132 steps to pace off 100.0 m. She was studying the flying trapeze. She noticed that when the ride was running that the chairs swung outward. She found that it took her 14.5 steps to go from the outside of the swing path on one side to the ...
  99. geometry

    The perimeter of an isosceles triangle is 37 in. The lengths of the two equal legs are 6 in. less than 3 times the length of the base. Find the lengths of the three sides. 37=2L+2W W=3W-6 do i have this equation wrote right when i try to solve it the answers i get is w=3 l=15....
  100. Physics

    Three blocks of masses 1.0, 2.0, and 4.0 kilograms are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown above. Calculate each of the following. a. The acceleration of the 4 kilogram block b. The tension in the string ...
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