1. Geometry

    In my book there's a picture of an equalderal triangle. This is given information. Inside the triangle all three altitudes have been drawn to find the center point of gravity. The incircle is drawn. The circumcircle is drawn. Given that the radius of the
  2. Math (algebra)

    Could you help me with this math question: A can in the shape of a right circular cylinder is required to have a volume of 500 cubic centimeters. The top and bottom are made of material that costs 11 cents per square centimeter, while the sides are made of
  3. statistics

    A rental agent claims that the mean monthly rent, u , for apartments on the east side of town is less than $675. A random sample of 21 monthly rents for apartments on the east side has a mean of $674, with a standard deviation of $18. If we assume that the
  4. Engineering Math

    A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach
  5. Engineering Math

    A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach
  6. algebra

    the gateway arch is the tallest man-made monument found in the united states in St. Louis missouri. The gateway arch can be closely approximated by a parabola, is 630 feet high and 630 feet across at the base. 1) the maintenance crew is doing ht side of
  7. Science

    Fortune teller's use crystal balls to see the future. A fortune teller has a crystal ball with an index of refraction of 1.5 and diameter of 0.2 m. You sit on one side of the ball and the fortune teller sits on the other. She holds up a small red jewel on
  8. Find the sum of thuis question

    Can someone find the sum for this equation please. (X^2)/(X^2-16)=(5X+4)/(X^2-16) I don't think it is finding the sum, but I can simplify the equation. (X^2)/(X^2-16)=(5X+4)/(X^2-16) First, multiply both sides by X^-16. X^2 = 5X+4 Subtract 5X+4 from both
  9. Math

    Learning about quadratic functions and equations, and I am struggling. It's so easy for others to understand, but math is my weakness, would appreciate all the help you could give. Notes and stuff would be great, as long as I understand. Quadratic
  10. math

    Triangle ABC is similar to triangle FGH. Angle A measures 42 degrees. Angle G measures 49 degrees. Find the measure of angle H
  11. geometry

    the base of an isosceles triangle is 18 centimeters long. The altitude to the base is 12 centimeters long. What is the approximate measure of a base angle of the triangle?
  12. statistics

    suppose that iq scores have a bell-shaped distribution with a mean of 97 and a standard deviation of 17. using the empirical rule, what percentage of iq scores are greater than 46? please do not round your answer.
  13. History exam essay

    My history question is: How did issues regarding African American quality shaped the US from 1850s to the 1920s? I have my outline done but its just that I don't know how to connect it all together.
  14. Math

    The inside edge of a racing track is shaped like a circle with a diameter of 420 feet. About how many times would a runner have to go around the track to run one mile?
  15. World History

    What was the German form of this type of philosophy that was shaped by Hitler's fanatical ideas about German nationalism and racial superiority known as? The Third Reich
  16. math/ measurment

    What is the measure of the point angle for a star-shaped polygon with 8 points and a dent angle of 130 degrees? Is there a formula to figure this?
  17. algebra

    A walkman path is shaped like a rectangle with a width 7 times its length l. What is a simplified expression for the distance between opposite corners of the walking path
  18. Math! Help Hurry!

    A chest shaped as a rectangular prism can hold 576 wooden cube blocks with edge lengths of 1/4 ft. What is the volume of the chest?
  19. Math

    In a survey, 20 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30 and standard deviation of $2. Find the margin of error for a 99% confidence level.
  20. Trigonometry

    Find cotangent theta given that cosecant theta equals -3.5891420 and theta is in the third quadrant. I was using the trig identity 1+cot^2theta=csc^2theta I wanted to isolate cotangent so I plugged in 1/sin (-3.5891420) and then squared my answer. I then
  21. Precalc

    The figure shows a 10 x 10 square centered at the origin. The darker-shaded square is the image of this square, dilated by a factor of 0.8 and rotated about the origin by exactly the number of degrees, , so that its corners touch the sides of the parent
  22. Math

    Ricardo spends $3.50 for lunch each day. Write and solve an equation to find how long it takes him to spend $21.00 3.50x=21.00 3.50(6)=21.00 6. A spiral toy that can bounce down a flight of stairs is made from 80 feet of wire. Write and solve an equation
  23. math

    Suppose I have 8 coins.4 of them have heads on both sides and the other 4 have tails on both sides. I reach in and get 4 coins at one time. What's the probability that I get 2 head coins and 2 tails? Well I was thinking that it would be 1/2 since both
  24. Trigonometry

    I need help with I just can't seem to get anywhere. this is as far as I have got: Solve for b arcsin(b)+ 2arctan(b)=pi arcsin(b)=pi-2arctan(b) b=sin(pi-2arctan(b)) Sub in Sin difference identity let 2U=(2arctan(b)) sin(a-b)=sinacosb-cosasinb
  25. algebra

    The first angle of a triangle is 23° more than the 2nd angle. The 3rd angle of a triangle is 6 times the 2nd angle. Use X to represent the unknown value
  26. math

    A triangular pyramid has a triangle base of 24 cm, triangle height of 16 cm, and a pyramid height of 14 cm. what is the volume of triangular prism.
  27. Math

    A parallelogram and a triangle both have a base of 8 inches. the height of the parallelogram is 4 inches. what is the height of the triangle if both shapes have the same area?
  28. math

    a parallelogram and a triangle both have a base of eight inches the height of a parallelogram is four inches what is the height of the triangle if both of the shapes have the same area? a. 2 in b. 4 in c. 8 in d. 10 in
  29. geometry

    given: segment HI congruent to segment GJ, segment HI parallel to segment GJ prove: triangle GJH congruent to triangle IHJ
  30. Calc

    A line tangent to y=(x^2)+1 at x=a, a>0, intersects the x-axis at point P. a) Write an expression for the area of the triangle formed by the tangent line, the x-axis, and the line x=a. b) For what value of 'a' is the area of the triangle a minimum?
  31. trig

    L ii i i i i i i i i A i i i i i i i i i i 4000 miles i i i i E ii right triangle have to find side EL. The range of a lighthouse is the maximum distance at which its light is visible. In the figure, point A is the farthest point from which it is possible
  32. calculus

    A farmer wants to construct a fence around a rectangular field. Sides with neighbours need reinforced fencing that costs $8 per meter. The other sides use regular fencing that costs $4 per meter. Assuming the farmer has neighbours on the east and west
  33. Geometry:Rectangles

    Gery wants to fence a rectangular field whose area is 1200 sq.m. He has only 100 meters of fencing so he decided to fence only the three side of the rectangle letting the wall be the fourth side. How wide the rectangle should be?
  34. Algebra

    Please show me step by step if possible: Find dimensions of a rectanglar rug whose perimeter is 28 ft and whose area is 45 ft². The length (longer side) equal ___ft and width (shorter side) equal ____ft.
  35. algebra

    Determine whether y varies directly with x. If so, find the constant of variation k and write the equation. The table ges right side dwnards, 7,8,9,10 the left side dwn ges 11, 13, 15, 17 Now I understand it I just don't knw how t write it. Help please
  36. Circuits 2

    For the circuit below, V1 has rms voltage of Vrms=10V. The turn ratio of the primary to secondary side of the transformer is 1:10. If R1 has a value of 20Ω, what is the value of the rms current on the secondary side? Enter your answer in units of Amps.
  37. Math Geometry

    Gery wants to fence a rectangular field whose area is 1200 sq.m. He has only 100 meters of fencing so he decided to fence only the three side of the rectangle letting the wall be the fourth side. How wide the rectangle should be?
  38. physics

    Money managers: A. help people set up budgets to control personal spending. B. typically work for investment banks. C. are on the “sell side” of Wall Street. D. are on the “buy side” of Wall Street. B?
  39. Algebra

    Please show me step by step if possible: Find dimensions of a rectanglar rug whose perimeter is 28 ft and whose area is 45 ft². The length (longer side) equal ___ft and width (shorter side) equal ____ft.
  40. History

    I'm writing an essay based on the question "to what extent did world war 2 shape the identity of Canada" I wrote the introductory paragraph (down below) but I was just wondering if someone could proofread it and let me know if there was anything else I
  41. science

    two inputs, two outputs and two side effects of the health care system would be... Compare and contrast one of the outputs with one of the side effects. help pl and thank u!! :)
  42. Math

    Two long roads intersect at P at an angle of 53 degrees. Starting at P cyclist A rides for 16.2 km along one side .Cyclist B rides 18, 9 km to the other side. How far apart they are?
  43. Algebra

    If I were to make an equation so that the left side were reciprocal function and the right side were an absolute value function then the equation would be guaranteed to have at least one solution. Why?
  44. Math - Permutations

    How many different ways are there of arranging seven green and eight brown bottles in a row, so that exactly one pair of green bottles is side-by-side?
  45. Algebra

    Length of a side on a square is 5cm longer than the side of another square. the total area is 193cm. what is length of original?
  46. Math C30

    Eight Fundamental Identities Sec thada - Cos thada- on one side tan thada sin thada- on the other side How do you do this ???
  47. Math

    A diagonal of a parallelogram is 10 inches long and makes angles of 25 degrees and 43 degrees with the side. how long is the longest side?
  48. Trignometry

    Can you please help me prove that ((1-cosx)/(1+cosx))=(cscx-cotx)^2? I can only do work on one side to prove that its end result is equal to the other side.
  49. Math

    If I were to make an equation so that the left side were a reciprocal function and the right side were an absolute value function, then the equation would be guaranteed to have at least one solution. Why?
  50. 7th grade

    I have a critical thinking problem I need help with...you can divide each side of an equation by the same non zero value. Explain what would result from the equation 4 x 0 = 5 x 0 if you could divide each side by zero and if 0/0 = 1.
  51. 7th grade

    I have a critical thinking problem I need help with...you can divide each side of an equation by the same non zero value. Explain what would result from the equation 4 x 0 = 5 x 0 if you could divide each side by zero and if 0/0 = 1.
  52. chemistry

    The radius of a niobium atom is 131 pm. How many niobium atoms would have to be laid side by side to span a distance of 4.53 mm? atoms
  53. Chemistry

    I'm having a little trouble determining oxidation numbers for elements in a redox reaction KMnO4+HCl--> MnCl2+Cl2+H2O+KCl So far what I have for the reactants side is: K= +1 Mn= +7 O4= -2 H= +1 Cl= -1 And for the products side I have: Mn= +2 Cl2= -1
  54. geometry

    Which of these tables correctly matches the list of tools with the task that can be performed with the tools? Answer A.pencil, string, ruler = duplicate a rectangle B.pencil, compass, straightedge = duplicate a triangle C.pencil, straightedge, ruler = make
  55. Geometry

    A circle is circumscribed by a pentagon. The sides are all tangent to the circle. (It's a bit hard to explain without a picture, so I'll do my best.) The pentagon is QSUWY. However, there are points in between all five sides. In SQ lies point R, SU point
  56. geometry

    The area of a regular decagon is 50cm2. What is the area of a regular decagon with sides four times the sides of the smaller decagon?
  57. Algebra 1

    A landscaper has two gardens: one is a square and the other is a rectangle. The width of the rectangular garden is 5 yards less than a side of the square one, and the length of the rectangular garden is 3 yards more than a side of the square garden. If the
  58. Adverbial Phrase

    Q1. My mother and I did some gardening,and _______ we relaxed on our front porch, admiring our handiwork. a. last b. afterwards c. first Ans: a. last Q2. I bring my pet snake to the vet for a check-up every ______. a. Sundays b. days c. week Ans: c. week
  59. math

    i need help with this question can u please show me how to figure this out and show me how you figured out the problem. the question is 1/3 pnut butter sandwiches 1/6 cheese and 9 ham how many total? i assume you mean how many sandwhiches total? in that
  60. Chemistry

    What's the difference between the pressure of a system and the partial pressures in relation to Le Chatelier's principles? I know that when the pressure of the system is increased, it goes to the side with less moles/particles and when decreased it will go
  61. calculus

    A rectangular aquarium is to be built with an open top (no material needed) and a square base. You have 60 square feet of material to build it with. (We are assuming that the sides and bottom are perfectly flat). What is the maximum volume that this
  62. PHY

    The coefficient of static friction between hard rubber and normal street pavement is about 0.68. On how steep a hill (maximum angle) can you leave a car parked?
  63. Physics

    2. How much energy would a body of mass 50kg need to provide for the following: a. Climbing a hill 500m high. b. Walking up steps 10m tall. c. Jumping 10cm up.
  64. Physics

    The coefficient of static friction between hard rubber and normal street pavement is about 0.42. On how steep a hill (maximum angle) can you leave a car parked?
  65. english

    does anyone know a poem about foolish friend please write it down thank you
  66. maths

    two boys of my class like me but they both are really nice i want them to be my friend so what should i do?
  67. English.

    What is another strong way of saying : Yes, I would recommend this book to a friend.
  68. english

    when someone asks could you have anticipated your friend's actions? what does that mean?
  69. 1st grade

    one syllable inside, many, friend
  70. Physics

    If you can see the face of a friend who is underwater, can she also see you? Please explain. Thanks :)
  71. math

    5 friend are buying tickets.HOW MANY COULD THEY LINE UP.
  72. French

    How do you say I finish my chores and I wait for my friend to come?
  73. algebra

    In words! How would you explain to your friend why the quotient of x^8 and x^2 is x^6 and not x^4?
  74. English

    What does this mean?: Why it is sometimes important to break the confidence of a friend?
  75. math

    i have 1,221 cookies and i have 7 friends, how many will each friend get?
  76. GEOMETRY PLS HELP

    learning geometry i need to determine whether each pair of figures is similar. and explain why or why not: since I cant draw can you help me with this pls im so lost. 1) triangle xyz <x 65 degrees <y is 65 <z is 50 line xy is 2.55 line yz is 3
  77. Algebra-Please check

    Please check- Solve 3 > sqrt(3x) 3x >=o x>=o/3 x>=0 square both sides and you have 3x < 3^2 3x,9 x<9/3 x<3 answer is 0<=x<3 correct or not? 3(cube) sqrt(2-5) = 3 cube both sides = 2-5x = 27 -5x = 25 x = -5, correct? Thank you
  78. Math

    a) The ratio of the lengths of the sides of two squares is 1:4. What is the ratio of the are of the two squares? b) The ratio of the lengths of the sides of two cubes is 2:5. What is the ratio of the volumes? I don't get these questions :/
  79. math

    The side of a square is x+8 metre and other side of the square is 3x-18 find the value of x .
  80. Math

    One side of a parallelogram has endpoints (3, 3) and (1, 7). What are the endpoints for the side opposite? (8, 1) and (6, 7) (6, 1) and (2, 3) (6, 1) and (8, 5) (8, 1) and (6, 5)
  81. Geometry

    determine whether the side through the points (2, 3) and (11, 6) is perpendicular to the side through the points (2, 3) and (_3, 18).
  82. MATH

    One side of a rectangle is 53cm another, another side is 29 cm. What is the perimeter of the rectangle
  83. Math

    One side of a parallelogram has endpoints (3, 3) and (1, 7). What are the endpoints for the side opposite? (8, 1) and (6, 7) (6, 1) and (2, 3) (6, 1) and (8, 5) (8, 1) and (6, 5)
  84. math

    w2+1/64 In my Adv. Math class my teacher shaded in my to dark to I can't see the height. Can you give me a formula to find the height of a triangle? Jennifer, I don't know what you are asking. Please repost with more information. Thanks for asking.
  85. Algebra

    Devin attempted to solve the inequality -2x+6>10 following the steps below: •subtract 6 from both sides of the inequality. •divide both sides of the inequality by -2. He finds that x>-2. Clearly explain why this is not a correct solution. In your
  86. Algebra, Please Help!

    Devin attempted to solve the inequality -2x+6>10 following the steps below: •subtract 6 from both sides of the inequality. •divide both sides of the inequality by -2. He finds that x>-2. Clearly explain why this is not a correct solution. In your
  87. Math

    How many faces does a pentagonal pyramid have? If you are referring to a pyramid with a pentagonal base and triangular sides, the answer is six. If you are referring to a regular polyhedron for which all sides are regular pentagons of the same size, the
  88. math

    the area of a trapezoid cornfield IOWA is 18000 sq m The100 meter side IO is parallel to the 150 meter side WA. This field is divided into four sections by diagonal roads IW and OA. Find the areas of the triangular sections
  89. math

    The perimeter of square A is 81 inches. The length of each side of square B is 1 inch less than the length of each side of square A. One side of square B is ___ inches in length.
  90. physics

    If a 0.5kg toy car is rolling down a hill with a velocity of 0.8m.s, what is the car's momentum?
  91. physics

    A car moves at 12 m/s and coasts up a hill with a uniform acceleration of -1.4 m/s2 a)What is its displacement after 6.0 s b)What is its displacement after 9.0 s?
  92. statistics

    If a piece of toast falls off your breakfast plate, is it more likely to land with the buttered side down? According to Murphy’s Law (the assumption that if anything can go wrong, it will), the answer is “Yes.” Most scientists would argue that by the
  93. physics

    A 40 kg rock is accelerating down a hill at 3 m/s2. What is the net force exerted on the rock
  94. English- Juluis Caesar

    I'm suppose to write approximately 100 words or half a page for each of these questions & I need a little bit of help! :S Question 1: After reading Act 1, Do you believe that Caesar might, indeed, be a threat to Roman Liberty? Question 2: After reading Act
  95. Math

    The measure of each interior angle of a regular polygon with n sides is [(n - 2)180 / n] degrees. What is the measure of each interior angle of a regular polygon with n sides, in radians? A. (n - 2)pi / 4n B. (n - 2)pi / 2n C. (n - 2)pi / n D. (n - 2)2pi /
  96. math

    calculate the measures of the point angles of the star-shaped polygons shown. I know you can see the firgure but its 140 degree angle. To measure them do I do 360/140=2.57?
  97. math

    a storage crate has the dimensions : 12ft * 6ft *5ft. how many cube-shaped boxes measuring 8 inches in length could be stacked completely within the cube??
  98. Physic

    A 2.28 kg bucket is attached to a disk-shaped pulley of radius 0.104 m and mass 0.712 kg. If the bucket is allowed to fall, calculate the tension in the rope.
  99. ststistics

    A sample of 3000 observations has a mean of 86 and a standard deviation of 13. The distribution is bell-shaped. Using the empirical rule, find what percentage of the observations fall in the intervals
  100. math

    a storage crate has the dimensions : 12ft * 6ft *5ft. how many cube-shaped boxes measuring 8 inches in length could be stacked completely within the cube??