Questions Asked on
April 23, 2016

  1. GEOMETRY HELP PLEASE

    The bases of trapezoid $ABCD$ are $\overline{AB}$ and $\overline{CD}$. We are given that $CD = 8$, $AD = BC = 7$, and $BD = 9$. Find the area of the trapezoid.

    asked by Sarah
  2. Maths

    A rectangular room 8m long by 5m wide contains 129m square of air. Calculate the height of the room. I assume that the above question is a trick question. Since the room is 8m high, it then goes that the height I 8metres. Thank you.

    asked by Lucas
  3. math

    A man invests rs6750,partly in shares of 6% at rs140 and partly in shares of 5% at rs 125.if his total income is rs280,how much has he invested in each?

    asked by nitin
  4. math

    which pair of expressions are equivalent A 4(6X) and 10X B 4(6X) and 24X C 4X + 6X and 10 XX D 4X + 6X and 24X

    asked by sara
  5. geography

    Settlement: Centrifugal forces drives people and businesses to move out of this land-use zone. Write a paragraph (approximately 12 lines) supporting this statement by referring to factors that cause businesses to move away from this land-use zone.

    asked by Suffix D
  6. Chemistry

    Methane (CH4) is the major component of natural gas. 2.5 moles of methane were placed in a commercial colorimeter and subjected to a combustion reaction. The reaction released 2800 kJ of energy. Compare this energy value to the energy values of paraffin

    asked by Tracy
  7. relative and absolute change

    If you earn $1200 per month and you expect your earnings to increase by 10% per year, how much do you think you will be making per year in 5 years?

    asked by Anonymous
  8. Calculus

    The rate of decay is proportional to the mass for radioactive material. For a certain radioactive isotope, this rate of decay is given by the differential equation dm/dt = -.022m, where m is the mass of the isotope in mg and t is the time in years. A. If

    asked by Anonymous
  9. Calculus

    A race car is running practice laps in preparation for an upcoming race. To judge how the car is performing, the crew takes measurements of the car's speed S(t) (in miles per hour, or mph) every minute. The measurements are given in the table below. t

    asked by Anonymous
  10. Absolute and relative change

    The interest rate on a car loan has increased 50% over the last 10 years and is now 9%. What was the rate 10 years ago?

    asked by Anonymous
  11. life orientation

    Identify 3 human rights violations or discrimination and explain in an introductory paragraph why you choose the specific human rights violations or discrimination (xenophobic )

    asked by Londani
  12. life orientation

    are individuals empowered and do they understand their human rights or when their rights/the rights of others are being violated.provide five reasons for your analysis and standpoint.

    asked by Anonymous
  13. AP Calculus

    Suppose that f has a continuous second derivative for all x, and that f(0)=1, f'(0)=2, and f''(0)=0. A. Does f have an inflection point at x=0? Explain your answer. B. Let g'(x) = (3x^2 + 2)f(x) + (x^3 + 2x + 5)f'(x). The point (0,5) is on the graph of g.

    asked by Anonymous
  14. Calculus!!

    Consider the differential equation given by dy/dx = xy/2. A. Let y=f(x) be the particular solution to the given differential equation with the initial condition. Based on the slope field, how does the value of f(0.2) compare to f(0)? Justify your answer.

    asked by Anonymous
  15. math

    an astronomer estimated that a canyon on another planet was 2.5x10^3 kilometers long which is equivalent 25,000km 2,500km 0.025km 0.0025km please help

    asked by lisa
  16. converting parabolic equations

    The vertex form of the equation of a parabola is x=8(y-1)^2-15. What is the standard form of the equation?

    asked by kimberly
  17. AP Calculus

    Consider a curve given implicitly by the equation (1+x)y^3 + (x^4)y - 85 = 0. A. Calculate dy/dx at a general point (x,y). B. Write the equation of the tangent line to the curve at the point (3,1). C. At (3,1), y(x) is defined implicitly as a function of

    asked by Anonymous
  18. Calculus

    Let M be the region under the graph of f(x) = 3/e^x from x=0 to x=5. A. Find the area of M. B. Find the value of c so that the line x=c divides the region M into two pieces with equal area. C. M is the base of a solid whose cross sections are semicircles

    asked by Anonymous
  19. Maths

    Calculate the perimeter of the sector of a circle in centimeters. Use pie = 22/7, radius =14cm and angle =45 degrees.

    asked by Rolz
  20. math

    which is equivalent to the expression shown (3.3x10^3)(1.8x10^4)? 5.94x10^7 5.94x10^8 594x10^6 59.4x10^5 please help

    asked by lisa
  21. Calculus

    The equation dy/dx = -6x^2/y gives the slope at any point on the graph of f(x). The range of f(x) is [0, infinity] and f(1) = 2. A. Find the equation of the tangent line to f(x) at the point (1,2). B. Write the function f(x). C. Determine the domain of the

    asked by Anonymous
  22. math

    on a 1-8 numbered spinner, how do I find an even number or a number greater than 6?

    asked by Suzan
  23. converting parabolic equations

    The vertex form of the equation of a parabola is x=8(y-1)^2-15. What is the standard form of the equation?

    asked by kimberly
  24. math

    the standard form of the equation of a parabola is y=x^2-6x+14.what is the vertex form of the equation?

    asked by kimberly
  25. Calculus

    If f(2) = 2.5 and f'(2) = -2.5, then f(2.5) is approximately: A. 2.5 B. -2.5 C. -2 D. 2 E. 1.25

    asked by Anonymous
  26. Math

    (secx-cosx) / (tanx-sinx) = cosecx+cotx Spent hours to solve this question but failed. Please help. Thank you

    asked by Aina
  27. maths

    the distance travelled by an object thrown upwards in t seconds is 30t - 4.9t square metres. after how much time would it fall down? at what all times would it be 20 metres above the ground?

    asked by shivanya
  28. L. O

    What are the factors that may threaten or limit the democratic functions of the media

    asked by Mendy
  29. Chemistry

    For the reaction H2(g) + I2(g) ⇀↽ 2 HI(g) at 425◦C, calculate [HI], given [H2] = [I2] = 0.000617 mol/L and K = 54.3.

    asked by Claire
  30. Chemistry

    At 350 K, Kc = 0.142 for the reaction 2 BrCl(g) ⇀↽ Br2(g) + Cl2(g) An equilibrium mixture at this temperature contains equal concentrations of bromine and chlorine, 0.077 mol/L. What is the equilibrium concentration of BrCl?

    asked by Matthew
  31. Chemistry

    A reaction between gaseous sulfur dioxide and oxygen gas to produce gaseous sulfur trioxide takes place at 600◦C. At that temperature, the concentration of SO2 is found to be 1.14 mol/L, the concentration of O2 is 1.39 mol/L, and the concentration of SO3

    asked by Olivia
  32. Trigonometry

    At a point on the ground 125 ft from the base of a tower, the angle of elevation to the top of the tower has a degree measure of 38 degrees. How high is the tower

    asked by Claire
  33. Music

    WHich of the following is true about a harpsichord? A. A harpsichord has a wide range of dynamics? B. It is still widely used today C. it has a very loud or very soft sound D. it creates sound by strings being plucked.

    asked by help plz ;-;
  34. Chemistry

    A flask initially contains 2.00 atm of NH3, 2.00 atm of N2, and 3.00 atm of H2 at 673 Kelvin. -What is the delta G for the reaction? -What is the equilibrium partial pressures of each gas at 673 Kelvin? So I figured out how to do the first question with

    asked by Chris
  35. Math

    Erin bought 12 yards of landyard.She cut the lanyyard into 1/2 yard pieces. Write an equation that represents the number of pieces of landyard,n,that Erin has now.

    asked by Leany
  36. life orientation

    identify your 3 human rights violations or discriminations and explain in an introductory paragraph why you choose tha specific human rights violations or discriminations

    asked by dineo manganyi
  37. math

    ) An object is moving on a straight line which is 15 centimeters away from the center of a circle of radius 28 centimeters. (Both the circle and the straight line are on the same plane.) A source of light is located on the line drawn from the center of the

    asked by price
  38. math

    the length ( L cm) of an edge of a cube is proportional to the cube root of its mass ( M grams).It is known that if L= 15, then M=125. let K be the constant of variation. CALCULATE THE VALUE OF K

    asked by emily
  39. Data Analysis

    A firm produces batteries that have a lifetime which is normally distributed with a mean of 360 minutes and a standard deviation of 30 minutes. The firm needs to keep an eye on the production process to ensure that everything is working properly and that

    asked by Sam
  40. Maths

    ABC is an isosceles triangle in which the equal sides are AB and A.If AD is an altitude and |BC|=1/2|AB|.Prove that |AD|^2=15|BC|^2

    asked by Pamela
  41. sequence

    Select the first five terms in the arithmetic sequence an = 4n, starting with n =

    asked by jim
  42. geography

    Calculate the gradient of a road (4km) intervals from a given roundabout the different height between the two end point the road is 400mm?

    asked by jamilu abubakar sadiq
  43. math

    Question 1 Production Rates A manufacturing company wishes to estimate the number of items that its workforce can produce on average each hour now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past

    asked by tim
  44. life orientation

    six ways that the human rights violation influence individual groups and the broader south Africa community

    asked by phillipine
  45. math

    The area of a rectangular prism is 93.5 inches The height of the prism is 8 inches and the width is 2.5 inches I need help in finding the length of the rectangular prism

    asked by Lee
  46. Physicis

    A mass of gas occupies 20cm at5c and 760mmhg pressure what is its volume at30c and800mmhg pressure .

    asked by Chidera
  47. social studies

    please help... Why did the Roman Empire fall?

    asked by brandi
  48. BIO chemistry

    What is the pH of a mixture of 0.042M NaH2PO4 and 0.054M Na2HPO4

    asked by Katlego
  49. Math

    The one-dimensional displacement, s meters of a particle, after t seconds, is given by the function s=t(t-4)^2. (i) when does the particle have zero acceleration? (ii) where is the particle at this time and what is it doing?

    asked by Anonymous
  50. social studies

    How might Greece's physical features have affected the development of Greek trade, culture, and legacy?

    asked by brandi
  51. Math

    What is the Greatest Common Factor of 36x+12y

    asked by Abigail
  52. Chemistry

    At equilibrium at 1.0 L vessel contains 22.00 mol of H2, 20.00 mol of CO2, 13.00 mol of H2O, and 5.700 mol of CO at 427◦C. CO2(g) + H2(g) ⇀↽ CO(g) + H2O(g) What is the value of K at this temperature for the reaction?

    asked by John
  53. Math

    If f[g(x)] = x, then f(x) and g(x) are inverses of each other. Why? I don't get this in my math question.

    asked by Cindy
  54. math

    What is the difference between the largest prime number less than 50 and the smallest composite number greater than 10?

    asked by fabianah
  55. Calculus

    Water is draining from a small cylindrical tank into a larger one below it. The small cylindrical tank has a radius of 4 feet and a height of 6 feet; the large cylindrical tank has a radius of 8 feet and a height of 16 feet. The small tank is initially

    asked by Anonymous
  56. maths

    If the sum of the cubes of two numbers is 72 and the difference of their squres is 12. Find the numbers.

    asked by Najm
  57. life orientation

    how is the human violation influence in the community and country?

    asked by sinovuyo
  58. Pre-Calc

    Help solving this please. I am unsure how to do it? Determine the domain of the following functions, write answer using interval notation. P( x )=log2(3x-8)

    asked by Juniper
  59. chemistry

    Which type of heat transfer is not blocked even by an insulated thermos? radiation ???

    asked by Boberto
  60. science

    what is the function of pore in a cell membrane

    asked by carmelita
  61. Law and ethics

    You are in charge of General Hospital’s compliance program. As part of the Hospital’s orientation program, you provide an overview of the compliance program to new employees. Things to consider: The concept of compliance has been a feature of health

    asked by Anonymous
  62. geometry

    Thye area of a regular hexagon is 38 cm^2. What is the area of a regular hexagon with sides 4 times as long?

    asked by Steve
  63. Precal/Math

    Solve: log(3-2x)-log(x+24)=0

    asked by Bobbie
  64. Physics

    A military gun is mounted on a railroad car (m = 1500 kg). There is no frictional force on the car, the track is horizontal, and the car is initially at rest. The gun then fires a shell of mass 30 kg with a velocity of 300 m/s at an angle of 40° with

    asked by Jessica
  65. Calculus

    Compute the curvature. r(t)=(t^2,2t^3/3) t >0 The answer is 1/2t(1+t^2)^3/2 I have tried multiple times but i cannot arrive to this answer.

    asked by Lyndsay
  66. Math

    How do i find the x and y intercept of y=5(3^x)

    asked by Shayne
  67. math

    Two particles A and B of mass 5kg and 9kg respectively rests on the smooth faces of a fixed wedge .They are connected by a light inextensible string passing over a smooth pulley at C and are released from rest.In the subsequent motion B hits the ground and

    asked by morgan
  68. Math

    I have a 92 average right now. I got a 93 on a major grade test, but my teacher has not posted the grade in Skyward yet. Will my average get lower or higher?

    asked by Rhea
  69. Math

    How do i solve 36^5x= (6^x)(6^x-2)

    asked by Carl
  70. fin/370

    Spread the balance sheets and income statements of Lake of Egypt Marina, Inc., for 2015 and 2014. (LG3-6)

    asked by George
  71. Economics

    Are there any current subsidy or welfare issues that are being dscussed or addressed in parliament or in municipalities?

    asked by Faatimah
  72. geometry

    Line l has the equation y=1/2x-4. Write the equation of the image of l after a dilation with a scale factor of 1/4 centered at the origin. Write your answer in slope-intercept form?

    asked by pearl
  73. math

    which is equivalent to the expression shown? 10^2 • 5^2 2,500 250**** 500 200 please help

    asked by lisa
  74. math

    which equation is true? square root 8^2=4 square root 6^2=24 square root 5^2=5 square root 3^2=81 please help

    asked by lisa
  75. life orientation

    three human rights violations and two examples of such violation

    asked by conce
  76. physics

    i figured out the ratio its 1.10 , don't know how to get the second part please help!! my understanding is not good enough to answer part 2 Pretend you have two containers, one filled with ethyl alcohol and the other filled with benzene. How would you show

    asked by please help urgent!
  77. math

    Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and 1 point is given for a free throw. In how many ways can Joe score 15 points?

    asked by Anonymous
  78. Chemistry

    One of the two possible rearrangements of the parent ion of 2-methyl-3-pentanol is more likely than the other. Which rearrangement is more likely, and explain why there is a difference?

    asked by Anonymous
  79. Logarithm

    Determine the value of each logarithm a) Log(4)256 b) Log(2) 1/64 Thank you!

    asked by Kasey
  80. Math

    The difference between two numbers is 33. If three times the larger number is subtracted from six times the smaller number the difference is 18. Find the smaller number. 6n-3(n+33)=18

    asked by PLEASE CHECK MY ANSWER ASAP!
  81. ELA Please check answers!

    Please check my answer(s) for me. I don't think I understand what adverbs, adjectives, or nouns are in infinitve phrases. Directions: Write the infinitive or infinitive phrase from each sentence. Then write noun, adjective, or adverv to identify its

    asked by Destielforever
  82. math

    Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and 1 point is given for a free throw. In how many ways can Joe score 15 points? My answer: 6 ways is this correct or incorrect please help

    asked by PLEASE CHECK MY ANSWER ASAP!
  83. Math

    How do i find x and y intercepts of y=7b^x

    asked by Carl
  84. Geography

    Mexico’s maquiladora program has been a central feature of the U.S./Mexico border. This border stretches nearly 2,000 miles, from the Pacific Ocean in California to the Gulf of Mexico in Texas. Four U.S. states (Arizona, California, New Mexico, and

    asked by Anonymous
  85. life orientation

    how does beliefs and opinions violation influence broader south African community

    asked by Shannon
  86. english

    does African marriage is an advantage for men only not women

    asked by precious
  87. Life orientation

    Evaluate the physical,social and economic consequences of this crime to the offender. How did this corruption and fraud impact negatively in the Country :for example service delivery,tax,expense of trial,etc.

    asked by Maboko
  88. life orientation

    describe the three human rights violations or discrimination you selected. And give at least two examples of such violations you have found in your research

    asked by dineo manganyi
  89. Calculas

    consider a cube with side length x cm. what is the volume of the cube? what is the surface area of the cube? The material to make the base costs $5/m^2 while it costs $3/m^2 to make the rest of the cube. Write an expression for the cost of material for the

    asked by Lexci
  90. life orientation

    critically discuss six ways that the human rights violations influences individuals, groups and the broader south african community

    asked by dineo manganyi
  91. Algebra

    Which pattern could have been used to create the sequence? 20, –40, 80, –160, 320 Multiply the previous term by –2 Divide the previous term by 2 Subtract 60 from the previous term. Add –60 to the previous term.

    asked by Reyrey
  92. life orientation

    Six suggestions on how to combat human rights violations

    asked by Nomsa
  93. Mathematics

    Find using substitution: ∫ 1/[x(1+lnx)^2] dx I'm not sure what substitution to use.

    asked by Chloe
  94. Physics

    two particles of mass m1=1.5 kg, and m2=3.5 kg undergo a 1-dimensional head-on collision. Their velocities along x are V1i=12 m/s, and V2i=-7.5 m/s. The 2 particles stick together after the collision. a.) Find the velocity after the collision. b.) How much

    asked by Jessica
  95. life orientation

    make six suqqwstions on how to combat the violations of human rights identified by you in the previous questions and indicate any organisationds you have come about in your research and indicate how they combat the human rights violations or

    asked by dineo manganyi
  96. Finance

    You can save $ 1,500 each year in saving account that pays 4% interes quarterly. How much will you have in 5 year? What if interest was compounded semi annual? What is interest was compund annual?

    asked by Ronny santos
  97. English

    so people, what can be done to make surbubian people allowd sloughting retual in the surbubes?

    asked by Hadebe Sakhile
  98. Psychology

    Apply two psychological principles to real life situations

    asked by Eleanor
  99. Math

    If I have a pool and it is 16 feet round and 4 fthe deep, how many gallons of water would that hold?

    asked by Hali Carmen
  100. life orientation

    Identify your human rights violation or discrimination and explain in and introductory paragraph why you choose the specific human rights or discrimination

    asked by goitsi
  101. life science, maths lit,agric,geography, life orie

    Criticality discuss six way that human Rights violation influence individually, groups and broader south African community

    asked by shaima
  102. Life orientation

    How corruption and fraud impact in South Africa

    asked by Malope chegofatxo
  103. chemistry

    Hi, I am trying to find the pH of a buffer I created and then added NaOH to. This is my data: total volume of solution 34.2 mL [NaOH] before reaction 6.0 [HOAc] before reaction .8 M [OAc-] before reaction .4 M [HOAc] after reaction 0 M [OAc-] after

    asked by anon
  104. Geography

    Evaluate the physical,social and economic consequences of fraud and corruption impact negatively in the country For example service delivery,tax,expense of trial

    asked by Mf
  105. geomentry

    points P and Q are on line segment AB on the same side of the midpoint of AB .Point P divides AB in the ratio 2:3 and Q divides AB in the ratio 3:4.If PQ =2 ,then the length of segment AB is ________

    asked by sunena
  106. chemistry lab

    so i'm trying to finish my lab and im trying to solve for the concentration, and the lab handout says "remember all the cl- from the original sample ended up in 100 mL of solution" The concentration i solved for (from my graph) was 9.8 ppm Cl....how would

    asked by Anonymous
  107. Computer science

    How do I count how many arrays there is - what do I add to the code? I have managed to create 2 buttons and the top button works and changes the fruits into alphabetical order but the second button doesn't work - please help! Press the button to change the

    asked by Anonymous
  108. Chemistry

    In the lab we synthesised nickel (II) ammine tetraflouroborate using hydrated nickel chloride and ammonia then this solution was added to a slotion of ammonia and ammonium tetraflouroborate,now im struggling to write a fully balanced chemical

    asked by Sikhulile
  109. Natural science

    What happens to the level of the salt solution in the distilling flask ? Explain why this happens

    asked by Phumelele
  110. accounting

    how to calculate depreciation using carrying value method?

    asked by Jeylen
  111. maths

    Find the median of 3,6,10,13, 14,17,19 and 22

    asked by emmanuel
  112. Math

    A biased coin is tossed 3 times. The probability that the coin will land on heads is 0.6 The probability that the coin will land on tails three times is less than 0.1 Is this correct? Show all your working.

    asked by Geny
  113. Chemistry

    What mass of CaO, can get by the decomposition of 250 g of CaCo3 with 80% purity?

    asked by Adam
  114. algebra

    Select the first five terms in the geometric sequence an=(3)n−1, starting with n=1

    asked by jim
  115. Chemistry

    Calculate the concentrations of Cd2 +, [Cd (CN) 42] and CN at equilibrium when they dissolve 0, 42mol of Cd(NO3)2, molarity= 2.50 M Kf =7.1x10^16

    asked by Victor
  116. Chemistry

    In the lab we synthesised nickel (II) ammine tetraflouroborate using hydrated nickel chloride and ammonia then this solution was added to a slotion of ammonia and ammonium tetraflouroborate,now im struggling to write a fully balanced chemical

    asked by Sikhulile
  117. English

    Speech that says english is the laguage of opportunity .why bother to teach indigenous laguage.

    asked by Nonjabulo