1. math

    Two sides of a triangle have lengths 8 m and 24 m. The angle between them is increasing at a rate of 0.05 rad/s. Find the rate at which the area of the triangle is changing when the angle between the sides of fixed length is 135°. Round your answer to two
  2. 8th Grade Algebra1

    I don't understand this question, so if anyone can answer it, that would be great! We are doing motion problems, so as you probably know, the formula is d=rt. (distance equals rate times time.) We have to make a chart to answer the following question... A
  3. Math

    1. What is the value of z so that -9 and 9 are both solutions of x^2+z=103? a) -22 b) 3 c) 22 d) 184 2. What is the value of b in the triangle below? The triangle has one side that is 3b and another that is just b. The area of the triangle is 24in.^2. a)
  4. Math

    1. What is the value of z so that -9 and 9 are both solutions of x^2+z=103? a) -22 b) 3 c) 22 d) 184 2. What is the value of b in the triangle below? The triangle has one side that is 3b and another that is just b. The area of the triangle is 24in.^2. a)
  5. math

    Using a ruler and a pair of compasses only, construct triangle ABC in which angle BAC is 45 degrees, side AB is 7cm and side AC is 9cm. Locate P, inside the triangle ABC, which is 5cm from A and equidistant from B and C
  6. Math

    line BC is one side of a regular n-gon. The sides next to line BC are extended to meet at W. Find the measure of angle W in terms of n That's a triangle. Use the facts about the relationships between the angles. If the ngon is regular, then all sides are
  7. Math

    If 1 side of a triangle is 10 inches and the same side in a 2nd triangle is 20 inches. A 2nd side is 4 inches in the 1st triangle what is the same side in the 2nd triangle? My answer is 8 inches
  8. Math

    If 1 side of a triangle is 10 inches and the same side in a 2nd triangle is 20 inches. A 2nd side is 4 inches in the 1st triangle what is the same side in the 2nd triangle? My answer is 8 inches
  9. Math

    Triangle Lmn is similar to triangle xyz. Triangle LMN has a side of 5 and 3. The scale factor of triangle Lmn to triangle xyz is 2:5. What is triangle xyz's length? Helppppp Meeeeeeeeeee!!!
  10. 5th Gr Math

    Mikail used 220 inches of wire to make this figure. The figure is made up of 2 indentical triangles, a 15 inch by 12 inch rectangle & a square of side 19 inches. What is the length of 1 side of each triangle if all the sides of the triangles are equal in
  11. math

    is it possible to find out the sides of the triangle just based on base and height alone? base is 20 ft and ht is 7 feet. would like to know the right and left sides if they are equal on both sides.
  12. Algebra - reposting - still need help / direction

    the perimeter of a triangle is 25 inches. The first side is 6 inches longer than the second side. The third side is 5 inches shorter than twice the second side. Find the length of each side
  13. math

    Mikhail used 220 inches of wire to make this figure. this figure is made up two identical triangles,a 15 inch by 12 inch rectangle and a square of side 19 inches.Whatis the length of one side of each triangle if allthe sides of the triangles are equal in
  14. Alegaba 2

    Two sides of a triangles are equal in length. the length of the third side is three meters less than the sum of the lengths of the other two sides. What is the length of the longest side of the trangle if its perimeter is 29 meter?
  15. math

    The base (BC) of an isosceles triangle (ABC) is also the side of a square (BCEF) in which the triangle is inscribed. A perpendicular line is drawn in the triangle from B to AC at D, forming triangle ABD. What is the ratio of triangle ABD to the square
  16. Algebra

    Solve problem by showing necessary steps to resolve. 0.06q + 14 = 0.3q - 5.2 Subract 0.06 q from both sides. 14 = 0.24q - 5.2 Add 5.2 to both sides 19.2 = 0.24 q Finally, divide both sides by 0.24 You will end up with q on one side of the equation and a
  17. trigonometry

    a tower 150 meter is situated at the top of the hill.At a point 650 m down the hill.The angle between the surface of the hill and the line of sight to the of the tower is 12degrees 30 '.Find the inclination of the hill to a horizontal plane.
  18. College Physics

    A skier is traveling at a speed of 39.7 m/s when she reaches the base of a frictionless ski hill. This hill makes an angle of 14° with the horizontal. She then coasts up the hill as far as possible. What height (measured vertically above the base of the
  19. inverse trig functions

    evaluate the following expressions: tan(sec^-1(5/3)) tan(sec^-1(25/7)) cot(csc^-1(5/3)) i know the answers.. i jus don't know how to solve them =( PLEASE help me I assume your sec^-1 notation denot4es the arcsecant function, etc. sec^-1 (5/3) = cos^-1
  20. Trig

    The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR. (d)
  21. Triangles math

    I want to confirm if I understood . Problem states : Draw a right triangle with a base of 2 units and a height of 3 units. Make three “copies” so that the lengths of the new sides are 50%, 300%, and 500% of the original. Solution: 1st triangle
  22. algebra 1

    The perimeter of a triangle is 72 cenimeters.the second side is twice as long as the first side.the third side is four centimeters shorter than the second side.how long is the first side?
  23. algebra

    the perimeter of a triangle is 205. one side is 10 longer than the shortest side. the third side is 5 less than twice the shortest side.how long is each side
  24. Math

    1. Which of the following best describes the altitude of a triangle? A) A segment perpendicular to a side of the triangle. B) A segment that passes through the midpoint and is perpendicular to a side of a triangle. C) A segment drawn from the vertex to the
  25. Ratio of two triangles

    What would the ratio be if the first triangle has sides of 4cm, 8cm, and 12cm and the second triangle had sides of 1cm, 2 cm, and 3 cm? Would the ratio be 4:1 or 1:1/4?
  26. Geometry about the circles

    1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent
  27. Geometry about the circles

    1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent
  28. GEOMETRY CIRCLES

    1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent
  29. Math

    A triangle has side lengths of 15 inches and 30 inches. It also has angles that measure 45° and 20°. Which of the following identifies the possible third side length and third angle of the triangle?
  30. Math

    An Equilateral Triangle Of Side 20cm Is Inscribed In A Circle.Calculate The Distance Of A Side Of The Triangle From the Centre Of The Circle.
  31. FAST Angle Help! (Math)

    Which value could be the length of the missing side of the triangle? (the side of the triangle has 5, the bottom has a 12 and the top has a X) PLZ I NEED HELP FAST!!!!!!!!!!!!
  32. Math

    An equilateral triangle of side 20cm is inscribed in a circle. Calculate the distance of a side of the triangle from the center of the circle
  33. geometry

    an equilateral triangle of side 20cm is inscribed in a circle.calculate the distance of a side of the triangle from th centre of the circle.
  34. Math

    a side of a square is 10 meters longer than the side of a equalaterial triangle. The perimeter of the square is 3 times the perimter of the triangle
  35. Math

    Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure to the nearest tenth
  36. pre algebra

    hi my answers ten thanks ms.sue and other touters 9 An equilateral triangle has a perimeter of 48 centimeters. If the triangle is dilated by a factor of 0.75, what is the length of each side of the new triangle? 3 10***** 12 16
  37. math

    A sqaure and a triangle have equal areas.if a side of the square is 10 inches and the base of the triangle is 10,what is the height of triangle draw a diagram to solve the problem
  38. Analytic Geometry

    The line segment joining a vertex of a triangle and the midpoint of the opposite side is called the median of the triangle. Given a triangle whose vertices are A(4,-4), B(10, 4) and C(2, 6), find the point on each median that is two-thirds of the distance
  39. Math

    My problem involves right-triangle trigonometry. A man on a 135-ft vertical cliff looks down at an angle of 16 degrees and sees his friend. How far away is the man from his friend? How far is the friend from the base of the cliff? Does the 16 degrees go to
  40. calculus

    For trigonometric substitution to solve the above integral, fill in the blanks below using the picture of the triangle given. integral (x^3)/(sqrt(25+9x^2)) dx / l / l / l / l / l / l / l / l / l side A / l / l --------- side B *** sorry hard to draw on
  41. math/algebra

    I have a triangle one side = 3 side 2 = square root5 - square root 3 side 3 = square root 5 + square root 3 I can get the answer 3 and I know I am missing the square root part of the equation can you help me by showing how this problem is worked so I can
  42. Geometry

    How can you prove a triangle is a right triangle? a: use the distance formula to see if at least 2 sides are congruent b: use the slope formula to see if any sides are perpendicular** c: use the distance formula to see if all 3 sides are congruent d: use
  43. Geometry

    1. Use the following set of numbers: 7, 24, 25 Check all that apply below.  The set forms the measures of the sides of a right triangle.  The set forms a Pythagorean triple.  The hypotenuse is 24.  One of the legs of the triangle 25.  The
  44. Math

    Jim Handy finds an irregularly shaped five-sided rock. He labels each side and toss the rock 100 times. The results of his tosses are shown in the table. Determine the empirical probability that rock will land on side 4 if tossed again. Side 1 2 3 4 5
  45. math

    : Hi helper, thanks for the help, this website is very good and it would not of been possible without your assistance. Here is a question i would like you to solve for me this time ....................................... let ABC be a triangle. Two straight
  46. logic

    the rectangle represented the AB side is 4cm the side BC is 6 cm i want to build a triangle taking the AB segment and the third vertice inside the triangle so his area becomes higher than 8 cm*cm. the area in cm*cm of the region of the rectangle in which
  47. logic

    the rectangle represented the AB side is 4cm the side BC is 6 cm i want to build a triangle taking the AB segment and the third vertice inside the triangle so his area becomes higher than 8 cm*cm. the area in cm*cm of the region of the rectangle in which
  48. math

    in an equilateral triangle ABC,O is any point in the interior of the triangle.From O perpendiculars are drawn to the sides.prove that sum of these perpendiculars is constant for any triangle
  49. math

    micheal drew a triangle with the sides measuring 12.5cm,30cm,32.5cm. using the pythagoream theorm determine of micheals triangle is a right triangle. explain. PLEASE HELP ME WITH THIS ONE!!
  50. HELP! math........quick will only take like 2 min.

    What two sides of a right triangle will give you the following? 34. sin 0 <--(the zero with the line throught it) 35. Cos 0 36. Tan O 37. Sin 180 degrees 38. Cos 360 degrees For all, one of the sides of the triangle is 1, the other is 0. What is the
  51. Mathematics

    How do i post the answer hence i don't the answer .In geometry.an equalateral triangle has the length of it's sides given as (y + 3)cm, (2y - x)cm and (4x + 3). Find the (a) value of x and y, (b) perimeter of the triangle (c) altitude of the triangle to
  52. math geometry

    if triangle ABC is a right triangle.If side AC=5 and side AB=10,what is the measure of side ABC?
  53. physics

    A U-shaped tube is partly filled with water and partly filled with a liquid that does not mix with water. Both sides of the tube are open to the atmosphere. If h1 = 0.46 m and h2 = 0.25 m, what is the density of the liquid? on the left side of the tube is
  54. math

    Divers looking for a sunken ship have defined the search area as a triangle with adjacent sides of length 2.75 miles and 1.32 miles. The angle between the sides of the triangle is 35 degrees. To the nearest 100th, find the search area. 2.08mi 2.9mi 1.04mi
  55. geometry

    One equilateral triangle has sides 5 ft long. Another equilateral triangle has sides 7 ft long. Find the ratio of the areas of the triangles
  56. pre-calculus

    triangle KLM has vertices K(0,0), L(18,0), and M(6,12). a. Write equations for the altitudes to the three sides of the triangle. b. Show that the altitudes intersect at a single point O, called the orthocenter of the triangle.
  57. trig

    In a right triangle the hypotenuse has length 10 and the the sum of the cotangents of all three angles of the triangle equals 2. What are the lengths of the other two sides of the triangle? (A) 5 and 5p3 (B) 5p2 and 5p2 (C) 1 and3 p11 (D) 4 and 2p21 (E)
  58. math

    One side of a triangle is 4 inchesinches longer than the side that is the base of the triangle. The third side is 6 inchesinches longer than the base. If the perimeter is 37 inchesinches​, find the length of each side.
  59. math

    Determine whether the following argument is correct. If it's not correct, explain what is wrong with ther argument and change the minor premise to make a correct argument. If a triangle is equilateral, then it has three equal sides. Triangle ABC doesn't
  60. MATH!

    To get from his high school to his home, Jamal travels 5.0 miles east and then 4.0 miles north. When Shelia goes to her home from the same high school she travels 8.0 miles east and 2.0 miles south. What is the measure of the shortest distance, to the
  61. algebre

    a flower bed is the shape of a triangle with one side twice the length of the shortest side and the third side is 30 ft more than the shortest side. find the dimentions if the perimeter is 102 ft.
  62. Geometry

    AM is a median of a triangle where A is one vertex and M is the midpoint of a side of a triangle opposite vertex A. If the distance from the centroid of the triangle to M is 5 units, how long is the median AM I have: The centroid, is the balance point, or
  63. Algebra

    I don't understand how to do this problems: Solve for the variable r, C=2PIr (PI is the pi symbol thing then r is next to it) and this problem solve for the variable l, S=B+1/2Pl please help :) When you solve for a variable, you want that "letter" on one
  64. word problems in algebra

    A square has sides of length 3x - 2 cm. Express the area of the square as a polynomial. would i write this as 3x-2cm^4 because there are foru sides sorry post went before i was done polynominial confuse me after thinking about what polynomial is suppose to
  65. trig

    Find all solutions to the following triangle. (Round your answers for angles A, C, A', and C' to the nearest whole number. Round your answers for sides c and c' to two decimal places. If either triangle is not possible, enter NONE in each corresponding
  66. Math

    The perimeter of a triangle is 43 feet.The small side is three was in the middle side, and the largest size to less than twice the middle side. What is the length of the longest side?
  67. for Knights

    have been looking at your post ... http://www.jiskha.com/display.cgi?id=1357047578 interesting question... let the altitude of 12 hit base a let the altitude of 14 hit base b then (1/2)(12)a = (1/2)(14)b 6a = 7b a = 7b/6 let the third side be c and its
  68. Trig

    An isosceles triangle has a height of 12.5 m (measured from the unequal side) and two equal angles that measure 55°. Determine the area of the triangle. Split in half the triangle is a right triangle, so it's three angles are 90%, 55% and 70%. I'm still
  69. Math Question

    If two sides of a triangle have lengths 4 and 9, then the length of the third side may be any number a) less than 13 b) greater than 5 but less than 13 c) greater than 4 but less than 9 d) greater than 5 I suggest you draw this. It is not d, nor a. it is
  70. math

    Determine whether the following argument is correct. If it’s not correct, explain what is wrong with the argument and change the minor premise to make a correct argument. If a triangle is equilateral, then it has three equal sides. Triangle ABC doesn’t
  71. Maths

    I have 1000m of fencing to make a paddock, there is a 1km wall in which I can build the paddock onto. I have to find the length or area (I'm not sure what) of a square shaped paddock, a triangle shaped paddock and half a circle. The notes I was given with
  72. Math/Geometry

    I don't understand how to do this exactly can someone help? List two sets of possible side lengths for two triangles. For example, you could list the side lengths 3, 4, and 5. One of your sets of side lengths should be able to form a triangle and one of
  73. Math(Geometry)

    In the diagram below(no diagram but details will be provided), right triangle ABC and line BD is an altitude to side line AC. * Prove that (AB)^2=(AC)(AD) -When you label the triangle B should be were the right angle is C should be at the top of the
  74. Math

    Can someone please check to see if I answered these true and false statements correctly? Thank you! 1. A triangle can have two right angles. (TRUE??) 2. An equilateral triangle is also an acute. (TRUE??) 3. A right triangle can also be an isosceles.
  75. geometry

    Right triangle ABC is similar to triangle XYZ, because angle B is congruent to angle Y. If side AB equals 15 inches, side BC equals 45 inches, and side YZ equals 9 inches, then what is the length of side XY?
  76. geometry

    Right triangle ABC is similar to triangle XYZ, because angle B is congruent to angle Y. If side AB equals 12 inches, side BC equals 27 inches, and side YZ equals 9 inches, then what is the length of side XY?
  77. math

    Prove that if a triangle is inscribed in a circle,the sides of a triangle are equidistant from the centre of the circle then the triangle is equilateral
  78. Algebra 2

    Perimeter of Triangle: the length of the sides of a triangle are 1/x, 2/x, and 2/3x meters. Find a rational expression for the perimeter of the triangle
  79. math

    I need to find out the type of triangle (by the type of angles). Is triangle acute, right or obtuse, when the lenghts of triangle sides are: a) 7, 8, 12 b) 20, 15, 40 c) 2/3, 8/9, 10/9
  80. Pre-Calc

    Consider a non-right triangle. a=39 b=25 c = 24.(a,b,c are the sides) Find A,B,C. (these are the degrees of the triangle) I know theres an equation: b^2= a ^2 + c^2 - 2accos(B) and sinA/a = sinB/b = sinC/c but when i do the problem i get A= 74.55 B = 38.16
  81. geometryproblems

    one side of the triangular banner is 1 1/2 times longer than the second side and 2 cm. shorter than the third side. the perimeter of the triangle is 98 cm. how long is the shorter side?
  82. math11

    The roof of a building is shaped like a square pyramid, with a base of 18m by 18m. If the slant height of the roof is 12m and roofing costs 5.75m2, how much will it cost for roofing material? if the pyramid has 4 sides does each side have 18m?
  83. Math HELP!

    Find the distance from the ferris directly to Butte. The picture is of an right triangle. On the left side length is has 42 mi. on the bottom of the triangle it has 56 mi. on the right side there is not number and at the top corner of the triangle it says
  84. math

    what is angle B if triangle ABC is given such that angle A is 46° sides a=4 &b=8 side a faces angle A..
  85. physics 12U

    A driver parks his car on a hill but accidently leaves it in neutral. The car starts from rest and accelerates down the 45 m long hill. It take the car 12.3 seconds to reach the bottom of the hill. a) What is the final velocity of the car at the bottom of
  86. Algebra

    the perimeter of a triangle is 25 inches. The first side is 6 inches longer than the second side. The third side is 5 inches shorter than twice the second side. Find the length of each side
  87. math

    the perimeter of a triangle is 23 cm. all side lengths are integers. if one side measures 5cm, what is the length of the largest possible side?
  88. Math/Algabra

    The perimeter of a triangle is 102. side b is twice as long as side A. and side C is three less than side B.. how long is each side.
  89. physics

    The cart starts from rest at the top of a hill with height, H2. It rolls down the hill and at the bottom of the hill it has a speed of 10 m/s. Next it is at the top of same hill but pushed so that it starts at the top of the hill with a speed of 4.59 m/s.
  90. physics

    The cart starts from rest at the top of a hill with height, H1. It rolls down the hill and at the bottom of the hill it has a speed of 8 m/s. Next it is at the top of same hill but pushed so that it starts at the top of the hill with a speed of 6 m/s. How
  91. 7th grade math

    Write and simplify an expression for the perimeter of the triangle. side A)3x, side B) 5x-4 and side C)2x+5. Thank you!
  92. math

    determine known length for a triangle one side is 2.5cm other side 1.6cm find how solve the third side
  93. Math

    I have a triangle with one side 2y^2-3, a side with 2y^2+y+5, and the other side y^2+y+5. I had to write expression and simplify. This is what I got: (2y^2-3)+(y^2+y+5)+(2y^2+y+5) =5y^2+2y+7 I now have to determine the perimeter if y=3cm. I don't know how
  94. math

    area of a triangle is equal of the area of a square of side 60 m. Find the side of the triangle whose corresponding altitude is 90 m.
  95. algebra

    how do I do this Solve for x. 3x – 2y = 6 Add 2y to both sides and then divide both sides by 3, to give you just "x' on the left side. so is this how i work it out 3x-2y=6 3x- 2y= 6 -2y 3x=6-2y x= 2 +2y No. Add 2y to both sides. 3x- 2y+2y= 6 +2y 3x=6+2y
  96. college math

    1). Sum of three numbers is 45. One number is five more than the second number.It is also twice the third.Find the numbers. 2).Perimeter of quadrilateral is 52in. Longest side is is three times as long as the shortest side. The other two sides are equally
  97. AP CALC. AB

    Two sides of a triangle have lengths 13 m and 17 m. The angle between them is increasing at a rate of 5 degrees/ min. How fast is the length of the third side increasing when the angle between the sides of fixed length is 60 degrees/min? Round the result
  98. Math

    If two sides of a triangle are proportional to the corresponding sides of another triangle, then the triangles are similar. Is this Always True, Sometimes True, or Never True?
  99. physics

    A 417 kg pig is standing at the top of a muddy hill on a rainy day. The hill is 100m long with a vertical drop of 37.4 m. If the pig slips and begins to slide down the hill, assuming a negligible amount of friction what will be the pigs speed at the bottom
  100. Perimeter

    Mr.lopez is putting u a fence around his vegetable garden. The garden is shaped liked a rectangle. The longer sides are 14feet, and the shoter sides are 9 an half feet long. How much fencing should mr. Lopez buy?