1. Measurements

    What is the measure of the point angle for a star-shaped polygon with 8 points and a dent angle of 130 degrees? How do you solve this?
  2. Math

    abcd is a square, and point e lies along side ab so that ae is three times as long as eb. To the nearest degree, what is measure of angle ecb?
  3. Geometry

    for each parallelogram find the measures of the angles formed by extending two adjacent side through their common vertex: angle is 90 degrees
  4. trig

    Point P is located at the intersection of a circle with a radius of r and the terminal side of an angle q. Find the coordinates of p to the nearest hundreth. q = -60° , r = 7
  5. Physics

    The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the
  6. trig...again

    gahh i cant figure this one out either. you have you verify the identity only using one side of the equation: sec^2x*sin^2x+sec^2x=-1 this identity cannot possible be true. on the left side you are adding 2 squared quantities, how can that result be
  7. Physics

    A recording engineer works in a soundproofed room that is 47.5 dB quieter than the outside. If the sound intensity in the room is 1.40 x 10^-10 W/m2, what is the intensity outside? -47.5=10log( 1.40 x 10^-10/Io divid each side by ten, then the antilog of
  8. math (combinations)

    The Hamburger Depot offers burgers fixed 5 different ways. They also offer French fries, tater tots, onion rings, and cheese sticks as side orders. How many different combinations of one hamburger and one side could be offered?: *
  9. calculus

    a company is designing shipping crated and wants the volume of each crate to be 4 cubic ft and the crate;s base to be a square between 1 and 1.5 ft per side. if the material for the bottom costs $5, and the side $3 and the top $1 per square foot. what
  10. physics

    The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the
  11. Physics 1

    The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the
  12. math

    A rectangle has side lengths of 5 centimeters and 3 centimeters. if the side lengths are doubled, will the area also doubal? Explain
  13. algebra 1

    the base of isosceles triagle is 5 m less than 4 times the length of a side. The perimeter is 67, find the length of each side and the base
  14. Algebra

    the base of isosceles triagle is 5 m less than 4 times the length of a side. The perimeter is 67, find the length of each side and the base
  15. Precal/Math

    how do i make the left hand side equal right hand side? (sec^2A)(sin^2A)= (sec^2A-1)
  16. Precal/Math

    How do i get the left side to equal the right hand side? (Cosx)/(1+sinx) + (cosx)/1-sinx = 2secx
  17. Algebra 1

    If the side of a rectangle measures 10.5 cm to the nearest millimeter,what is the upper bound and lower bound of the side of the rectangle?
  18. math

    the measures of 2 adjacent side of a parallelogram are in the ratio 17:7 if the second side measures 3.5cm find the perimeter of parallelogram ?
  19. math

    Every hockey card has front side and a back side. How many possible outcomes are there if you flip a hockey card on a desk?
  20. Math/Precal

    how do i solve so left hand side equals right hand side? cos2x=(1-tan^2x)/(1+tan^2x)
  21. Algebra

    A set of encyclopedia has 27 volumes. each volume is 1 3/8 inches thick. If the volumes are placed side by side, how long will the set be?
  22. maths

    a regular dodecagon has a side lenght of 5.6cm find the side lenght of a regular octagon that has the same perimeter?
  23. Jennifer

    Is the side chain of lysine polar or nonpolar? How would lysine interact with phenylalanine (side chain? Explain why.
  24. Physic II

    In the figure Q=4.6 nC and all other quantities are exact. What is the magnitude of the force on the charge Q? The figure is a triangle with equal sides of 1cm and 60 degree angles. Two of the corners on the bottom of the triangle has a charge of +2nC and
  25. science/maps

    On a topographic map, how would you show a hill with an elevation of 80 feet if the contour interval is 10 feet?
  26. science

    A truck travelling down the hill at constent acceleration. If it teavell 300m in 15s calculate it acceleration
  27. physics

    A 2000 kg trolley is pulled up a 30 degree hill at 20 km/hr by a winch. How much power is the winch providing? Steps Please!!
  28. GGHSS COTTON HILL Maths

    consider the arithmetic sequence 53,47,41 than what is the common difference and the algebraic expession of the given sequence
  29. Calculus grade 12

    a total of 8 meters of fencing are going to be used to fence in a rectangular cage for pets and divide it into three smaller cages **the photo that is shown with this question is three (3) boxes stuck together side by side horizontally*** determine the
  30. Calculus B

    The Antiderivative of: x(arctanx)dx It's clearly integration by parts with u=arctanx and dv=x, but after that I go down hill. HELP!
  31. renewable energy

    If you (64) are standing on a 72 m hill, what is you potential energy? (gravity = 9.81 m/s)
  32. GEOMETRY ONE QUESTION PLEASE HELP!!!!!

    Where is the circumcenter of any given triangle? the point of concurrency of the altitudes of the triangle the point of concurrency of the perpendicular bisectors of the sides of the triangle the point of concurrency of the bisectors of the angles of the
  33. Algebra, HELP! PLEASE!

    In triangle ABC, angle B is four times as large as angle A. The measure of angle C is 12∘ more than that of angle A. Find the measures of the angles.
  34. Geometry

    Prove that a line that divides two sides of a triangle proportionally is parallel to the third side. Be sure to create a name the appropriate geometric figures. Paul walks 25 feet away from his house and places a mirror on the ground. He backs 5 feet away
  35. Check my answers. Algebra

    Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I
  36. Math

    The chart below shows the population distribution for the 2,400 occupants of the city of Centre Hill. Adult Male Adult Female Child % Living in Uptown 9 8 6 % Living in Midtown 22 20 15 % Living in Downtown 21 22 12 % Living in Suburbs 48 50 67 If there
  37. Geometry

    the steps that you would follow to recreate a triangle using a protractor, a string, and the AAS Congruence Theorem, written out in words. I'm lost know that you need two angles and a side.No clue how to explain. Please help I've been sitting here all day
  38. math

    This was the question: Explain why the formula for determining slope using the coordinates of two points does not apply to vertical lines. The formula for determining a slope using two points does not apply to vertical lines simply because dividing by 0 is
  39. Math...Please help I need this done by 6:00

    This was the question: Explain why the formula for determining slope using the coordinates of two points does not apply to vertical lines. The formula for determining a slope using two points does not apply to vertical lines simply because dividing by 0 is
  40. Geometry

    The surface of a cube is painted red and blue, 3 sides of each color. the cube is then cut into 27 equal sized smaller cubes. A: How many cubes have at least 2 sides painted blue? B: How many cubes have at least 1 side painted red?
  41. Geometry

    The surface of a cube is painted red and blue, 3 sides of each color. the cube is then cut into 27 equal sized smaller cubes. A: How many cubes have at least 2 sides painted blue? B: How many cubes have at least 1 side painted red?
  42. math

    The perimeter of an isosceles triangle is 16 in. The area of the triangle is 12 sq in. If the base is x in, the height is 4 in and the legs are y in, find the length of the three sides.
  43. solid

    ABC is a right triangle with C as the right triangle and sides AC=6 cm and BC= 8 cm. line segment CD is drawn perpendicular to both AC and BC at C. if CD= 12 cm, find the distance from D to midpointS of AB
  44. Right triangle

    Determine whether this is a right triangle vertices: G(1, -1) H(5, 0) and J(3, 8) Should I use distance formula to find the sides and use Pythagorean theorem to prove it? Or is there another method? Thanks.
  45. Converse of the Pythagorean Theorem

    Can you please help me and my grandson? It says: The length of the sides of the triangle are 5m, 6m, and 7m. Is the triangle acute, right, obtuse? How can I check my answer to see if it was right?
  46. math

    triangle QRS ~ triangle EFG. Find the measures of the missing sides. QR = ? EF = 10 QS = 24 EG = 5 RS = 45 FG = ? Im having trouble setting up the equations. Please help!!
  47. Math (Adv. Functions)

    Given that triangle ABC with sides a, b, and c, show that the area of the triangle is given by A = ((a^2)(sinB)(sinC))/((2sin(B+C)))
  48. 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
  49. Math

    1. The lengths of the three sides of a triangle are given. Classify each triangle as acute, right, or obtuse. NUMBERS: 30, 40, 50. I'm confused by this question, could someone help/explain what it is asking.
  50. maths

    the base if an isosceles triangle is 4/3cm. the perimeter of the triangle is 4 2/15cm. what is the length of either of the remaining equal sides
  51. math

    In a triangle ABC,right angled at B, BD is drawn perpendicular to AC. prove that: (i) angle ABD = angle c (ii) angle CBD = angle A
  52. Geomatry

    In triangle ABC, angle Bis five less than twice angle A and angle Cis sixty less than angle B. What is the measurment of all of the triangles angles?
  53. geometry

    In a triangle ABC,right angled at B, BD is drawn perpendicular to AC. prove that: (i) angle ABD = angle c (ii) angle CBD = angle A
  54. geometry

    find the slope of a line that passes through the following points. (4,5) and (3,0) using the perpendicular and parallel slopes write slope intercept form equations for both perpendicular and parallel lines all perpendicular lines pass through the
  55. basic geometric

    a would like to get someone too help me with these math problem. Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measur? The angles of a triangle always adds to 180o. You know two of the angles, solve for the third. can
  56. Math

    A rectangular dog pen is to be constructed using a barn wall as one side and 60 meters of fencing for the other three sides. Find the dimensions of the pen that maximize the pen's area.
  57. math

    A trapezoid with area 417/16 has three of its sides on the x-axis, the line x=3, and the line x=6. The fourth side is contained in the line y=mx+5/2. The value of m can be written as a/b where a and b are coprime positive integers. Find a+b.
  58. math

    A trapezoid with area 417/16 has three of its sides on the x-axis, the line x=3, and the line x=6. The fourth side is contained in the line y=mx+5/2. The value of m can be written as a/b where a and b are coprime positive integers. Find a+b.
  59. algebra

    Luke is tiling a square patio in his backyard. He has 121 square-shaped tiles that will cover the entire patio. The maximum number of tiles that Luke can fit along one side of the patio is
  60. Geometry(Very Urgent!!!)

    Triangle NQP is an equilateral triangle with the measure of angle N=5x-2y and the measure of angle P=x+2y. Find the values of x and y. Show all work to receive credit.
  61. math

    The large red equilateral triangle has sides of 8x units. The midpoints of the red triangle are joined to form the blue triangle. The midpoints of the blue triangle ate joined to form the green triangle. The process of joining midpoints to form new
  62. Physics

    As a car rounds the top of a hill at a speed of 27.53 m/s, it very briefly loses contact with the pavement. This section of the road has an approximately circular shape. Find the radius r?
  63. history

    7. Choose the sentence that contains a relative pronoun. A. Please, put your book bag in your locker. B. Someone is coming down the hill. [C. Mr. Moon, whom you have met, is my assistant.] D. Those are not my shoes. are my answers correct
  64. physics

    pls help me solve this problem.. charges of +2.0, 3.0 and -8.0µC are placed at the vertices of an equilateral triangle of a side 10 cm. Calculate the magnitude of the force acting on the -8µC charge due to the other two charges.
  65. algebra

    Two questions actually. Please only respond with step-by-step answers. Feel free to change the numbers, I just need to know how to do it... 1.) Factor Completely: 4a^2 + 81 - 36a 2.) In a right triangle, find the length of the side not given. b= 2 c= sqrt.
  66. Physics

    Three point charges of 8 C, 3 C, and -5 C, are locate at the top, bottom left, and bottom right corners respectively of an equilateral triangle of side 1Å. Find the magnitude and direction of the net force on the 3 C charge.
  67. physics ..PLEASE HELP ASSIGN DUE SOON :(

    Three charges, q1=+45.9nC q2=+45.9nC and q3=+91.8nC are fixed at the corners of an equilateral triangle with a side length of 3.70cm. Find the magnitude of the electric force on q3.
  68. math-inequalities

    I really don't understand this stuff for example: 9b-3b+34<2b-10 and 7a+3=24 letters represent variables so they can be anything really. Once you understand this step then the rest of the problem can start to make sense. Inequalities tell you whether
  69. physics

    One kilogram of water vapor at 200 kPa fills one side of a partitioned chamber. The right side is twice the volume of the left and is initially evacuated. Determine the pressure of the water after the partition has been removed and enough heat has been
  70. physics

    One kilogram of water vapor at 200 kPa fills one side of a partitioned chamber. The right side is twice the volume of the left and is initially evacuated. Determine the pressure of the water after the partition has been removed and enough heat has been
  71. math

    Mr Lopez is putting a fence around his vegetable garden.The garden is shaped like a rectangle.The longer sides are 14 feet long and he shorter sides are 9 and a half feet long.How much fencing should he buy?
  72. Calculus

    Posted by CMM on Wednesday, October 13, 2010 at 12:50am. Calculate the following: a) Find g(f(1)) b) Find lim x-> 1+ g(f(x)) c) Find f(g(0)) d) Find lim x->0- f(g(x)) f(x)= 1-x, x<1 1, x=1 x-1, x>1 g(x)= -x, x<0 2, x=0 x+2, x>0 This is
  73. MATH

    When a draftsman draws three lines that are to intersect at one​ point, the lines may not intersect as intended and subsequently will form an error triangle. If this error triangle is long and​ thin, one estimate for the location of the desired
  74. Geometry

    Problem: ABCDE$\ is an equilateral pentagon with side length 2 in which angle B= angle E=120 degrees. The area of ABCDE can be expressed in the form square root of x + square root of y for some integers x and y. Find x+y. I don't understand. I really need
  75. science

    You are a maker of hot air balloons and wish to construct a balloon that will lift you and a friend to places unknown. Your standard balloon design is a perfectly spherical, nylon fabric balloon with a small hole on the bottom for the burner that heats the
  76. Physics :(( help please TT

    You are a maker of hot air balloons and wish to construct a balloon that will lift you and a friend to places unknown. Your standard balloon design is a perfectly spherical, nylon fabric balloon with a small hole on the bottom for the burner that heats the
  77. Question

    Do I have to get straight A+ to make it to Yale????? My friend said that a A is not good enough.
  78. ENGLISH

    I expect a friend to be both honest and a loyal person.
  79. Question

    IS it too late to enter talent search???? That what my friend said.
  80. Math

    I say that - |-15|-| 41|= -56; my best friend say that -| -15|- |41|= -26. Which one of us is correct? This answer depends on a dinner. Thanks.
  81. english

    i had a friend who brings sandwiches to campus each day.
  82. math

    if Zoua has 1/2 pound of grapes to share with a friend. how much can each of them have?
  83. ENGLISH

    I expect a friend to be both honest and a loyal person.
  84. English

    I expect a friend to be honest and a loyal person.
  85. lit

    Is this right? My friend jumped off the diving board and shouted "look out below!"
  86. math

    what would be the differentiation of 2^3^x^2? so that is 2 to the 3 to the x to the 2... each is an exponent of one other... the answer i got is 2^3^x^2 * ln 2 * 3^x^2 * x^2 * 2x is that right? my friend had the same, except she did not have x^2 in it.
  87. english

    I expect a friend to be both honest and a loyal person.
  88. english

    is this sentence a predicate pronounMy boyfriend became my best friend
  89. Math

    Your friend states that your mortgage is "an annuity where you are the bank."What does she mean?
  90. grammar

    I expect a friend to be both honest and a loyal person.
  91. grammar

    correct the errors in the following sentence : My best childhood friend is her
  92. english

    I expect a friend to both honest and a loyal pereson
  93. Math

    Put the distance each friend live from one another from greatest to least,4 3/4,4 7/8,4 9/10 and 4 4/5.
  94. math

    There are 36 cookies Jerry wants 25% of it and Gary want 1/2 and Terry want 0.75 can each friend get want they want?
  95. Math

    PLease help with this problem. My friend and I differ on answer. (3abc^2 )^4/(7a^2 b)^4 =
  96. Never Mind

    I'm just gonna call my friend, she's really good in math. THANKS FOR ALL THE HELP!!!
  97. Math

    A veterinary clinic plans to build four identical dog kennels along the side of its building using 210 feet of fencing. (See the picture.) What should be the dimensions of each kennel to maximize the enclosed area? (Note: No fencing is needed along the
  98. chemistry

    Into a 1.00 liter flask are placed 0.820 moles of NO and 0.223 moles of N2 and O2. What are the concentrations of NO, N2, and O2 at equilibrium? For the molarity for each, I got this: NO= .027 M N2= .0079 M O2= .0069 M balanced equation: 2NO(g) <->
  99. science

    Destiny is using a nutrient solution to use in her garden.She places the powder in a watering can.Then she adds the water.Which would dissolve the powder the fastest? A.SHAKING THE CAN VIGOROUSLY B.STIRRING THE SOLUTION SLOWLY C.TILTING THE CAN CAREFULLY
  100. Science

    Destiny is using a nutrient solution to use in her garden.She places the powder in a watering can.Then she adds the water.Which would dissolve the powder the fastest? A.SHAKING THE CAN VIGOROUSLY B.STIRRING THE SOLUTION SLOWLY C.TILTING THE CAN CAREFULLY