Questions Asked on
June 9, 2011

  1. physics

    A satellite that is spinning clockwise has four low-mass solar panels sticking out as shown; the mass of the satellite is 750 kg. A tiny meteor of mass 2 kg traveling at high speed rips through one of the solar panels and continues in the same direction

    asked by Daiyo
  2. Chemistry

    Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? A) increasing temperature B) increasing pressure C) decreasing surface area D) decreasing temperature

    asked by Brya
  3. Chemistry

    Name the three products formed when tin(II) nitrate is heated. Thank you.

    asked by Isa
  4. Math - Data Management

    I'm kinda stuck on my math homework, does anyone know how to do it? The results of a blood test at a medical lab are normally distributed with a mean of 60 and a standard deviation of 15. How low must a score be to lie in the lowest 5% of the results?

    asked by Andy
  5. algebra

    if a+2b+c=4 then find the maximum value of ab+bc+ca

    asked by rohan
  6. physics

    A boy drags a 100 N sled up a 20 degree slope at constant velocity. If the coefficient of friction between the sled and hill is 0.2 what force must he exert at an angle of 35 degrees with respect to the hill?

    asked by amy
  7. statistics

    In a particular class, there are 3 freshmen, 5 sophomores, 11 juniors, and 2 seniors. If the instructor randomly chooses a student to answer a question in class, what is the probability that the student chosen will be a freshman?

    asked by Anonymous
  8. chemistry

    Zinc metal reacts with hydrochloric acid to produce hydrogen gas according to the equation below. What volume of hydrogen at STP is released when 15.1 grams of zinc react at STP? Zn(s) + 2HCl(aq) ¨ ZnCl2(aq) + H2(g)

    asked by katydid
  9. English

    Identify the complete adjective clause and the word it modifies. I elected to take astronomy, which is not a required course.

    asked by Daniel
  10. Cupler

    how much low fat milk (1%) fat and how much whole milk (4%) fat should be mixed to make 5 gal of reduced fat mild 2%

    asked by Linsey
  11. english

    Identify the complete adjective clause and the word it modifies. Many Californians who own homes live on hillsides.

    asked by Daniel
  12. science(physics)

    the sum of three forces f1=100n, f2=80n, f3=60n acting on a particle is zero. The angle between f1 and f2 is: Please solve

    asked by marley
  13. science

    three 10 ohm resistors are connected in parallel what is the equivalent resistance of the parallel combination?

    asked by harold
  14. physics

    A plane drops a package of emergency rations to a stranded party of explorers the plane is traveling horizontally at 40m/s at a height of 100m from the ground find where the package strikes the ground ralative to the spot where it was dropped

    asked by job
  15. Chemistry

    How many grams of Mg are needed to react completely with 3.80 L of a 2.50 M HF solution? Mg + 2HF MgF2 + H2

    asked by Ashley
  16. math

    . A box contains five blue, eight green, and three yellow marbles. If a marble is selected at random, what is the probability that it is not blue?

    asked by CC
  17. physics

    A square coil of side 0.5 m is placed with its plane perpendicular to the direction of the magnetic field. What is the flux change in the coil if the magnetic field changes from 0.1 Tesla to 0.5 Tesla? Choose one answer. a. 0.1 Weber b. 0.2 Weber c. 0.8

    asked by ashley --- HELP PLEASEE!!!
  18. social studies

    How did the Emancipation Proclamation change the nature of the Civil War, if it did at when he issued it ?

    asked by Joanne
  19. physics

    A rectangular loop with 100 turns and area of 0.12 m2 rotates at 100 rad/s. The axis of rotation of the square is perpendicular to the direction of the magnetic field of 0.025 Tesla. What is the maximum emf induced in the loop? Choose one answer. a. 30 V

    asked by unknown
  20. arithmetic

    Prove that the product of three consecutive even numbers is divisible by 48

    asked by Abdulhalim
  21. calculus

    Sketch the region bounded by the curves y = x^2, y = x^4. 1) Find the area of the region enclosed by the two curves; 2) Find the volume of the solid obtained by rotating the above region about the x-axis; 3) Find the volume of the solid obtained by

    asked by Megan
  22. english

    Identify the complete adjective clause and the omitted introductory word. Is he the man you saw at the coffee shop?

    asked by Daniel
  23. english

    Identify the complete adjective clause and the word it modifies. This course deals with facts that everyone should know.

    asked by Daniel
  24. Physics

    A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of . Find the tangential speed with which end A strikes the horizontal

    asked by Samantha Kaur
  25. chemistry

    A sample of oxygen occupies 38.9L at STP. What will the pressure need to be in Torr. if the volume is to be changed to 32.2L without a change in T.

    asked by kathleen
  26. Math

    Aaron had an unpaid balance of $1,177.79 on his credit card statement at the beginning of April. He made a payment of $430.00 during the month, and made purchases of $366.02. If the interest rate on Aaron's credit card was 4.5% per month on the unpaid

    asked by CC
  27. Algebra II

    Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)Which expression is equivalent to tan(theta)-(sec(theta))/(sin(theta))? A.)-cot(theta) B.)cot(theta) C.)tan(theta)-cot(theta) D.)tan(theta)-sec^2(theta) 2.)Find the exact value of:cos 375

    asked by HotMath
  28. physics 221

    The United States and South Korean soccer teams are playing in the first round of the World Cup. An American kicks the ball, giving it an initial velocity of 3.8 m/s. The ball rolls a distance of 5.0 m and is then intercepted by a South Korean player. If

    asked by coolstir
  29. science

    a runner training for a race times her 400 meter laps around a track. her times are lap 1 60 seconds, lap 2 57 seconds, lap 3 55 seconds and lap 4 53 seconds. what is her avaerage velocity in meters per second (m/s)?

    asked by Quetta
  30. Annexation--United States

    Make a poster to advertise the cause of one of ... -The Confederationists -The Anti-Confederationists -The Annexationists Try to think of slogan to put on your poster. I chose to be an Annexationist. The slogan I chose Come Live in the U.S where life's

    asked by Emma
  31. arithmetic

    If a1,a2,a3 represents first, second, third terms in A.P. if the first term is 2 and (a1 + a2 ) a3 is minimum then the common difference is ___?

    asked by Harpreet Kaur
  32. Physics

    A 0.200-m uniform bar has a mass of 0.750 kg and is released from rest in the vertical position, as the drawing indicates. The spring is initially unstrained and has a spring constant of k = 25.0 N/m. Find the tangential speed with which end A strikes the

    asked by Karen
  33. Algebra II

    Multiple Choice Which expression is NOT equivalent to 1? (theta) means 0 with dash in it. A.)sin^2 (theta)+cot^2 (theta) sin^2 (theta) B.)(sin^(theta))/(1-cos(theta))-cos(theta) C,)sec^2 (theta)+ tan^2 (theta) D.)(cot^2(theta) sin^2 (theta))/(cos^2(theta))

    asked by HotMath
  34. ALgebra 1

    im doing a webquest on mt everest in math class. im almost done. i just need help with this 8. There have been many deaths in an attempt to climb Mount Everest. Make a timeline starting from the first attempted summit through 2004. Indicate the number of

    asked by surfsupmel
  35. chemistry

    The distance from Earth to the Moon is approximately 240,000 .What is this distance in meters? Express your answer using two significant figures.

    asked by stan
  36. Physics

    A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of . Find the tangential speed with which end A strikes the horizontal

    asked by Samantha Kaur
  37. Physics

    A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of 25.0 N/m. Find the tangential speed with which end A strikes the horizontal

    asked by Samantha Kaur
  38. maths (trigonometry)

    how can we calculwte the value of Cot 70 degree+4 cos 70 degree

    asked by marley
  39. Social Studies

    What are the social classes of Poland?

    asked by Karan
  40. microeconomic

    Consider a monopolist facing a demand curve given by P = 20 – q, where P is the market price and q is the quantity sold. The monopolist's marginal costs are MC = 2 per unit and a fixed cost of $20. What is the monopolist's profit it is charges a uniform

    asked by sisca
  41. science

    when a bar magnet is moved toward a stationary conducting loop which direction does the induced current in the loop flow?

    asked by harold
  42. Math

    Use the IVT to show that there is a root of the equation 4x^3-6x^2+3x-2=0 between 1 and 2? (please give a full answer with steps)

    asked by Sivakumar
  43. georgraphy

    Which of Canada's Atlantic Provinces has jurisdiction over mainly uninhabited Labrador? A. Prince Edward Island B. Newfoundland C. New Brunswick D. Nova Scotia

    asked by esha
  44. Physics

    A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of 25.0 N/m. Find the tangential speed with which end A strikes the horizontal

    asked by Samantha Kaur
  45. physics

    Marks: 2 The magnetic field of the loop increases from 0.0 Tesla to 0.2 Tesla in 0.4 seconds. The cross sectional area of the loop is 0.6 m2. What is the average current induced in the loop if the coil has a resistance of 1.5 Ω? Choose one answer. a. 0.1

    asked by unknown
  46. Providence

    Business relationships often present ethical dilemmas: not easily resolved easily resolved by following the relevant laws best resolved by creating a lose-lose situation irrelevant and therefore require no action

    asked by Harold
  47. physics

    50kg iceskater turns a bend at 7m/sec. if the radius of the curve is 5 meters, what is the centripetal force provided by the friction between the blade of the skate and the ice?

    asked by Anonymous
  48. Instructional materials:Their preparation and Use

    if you could help please do 3. A document camera is more versatile than an opaque projector because you can use it to A. record sound. B. project three-dimensional objects. C. display book pages on a screen. D. view colored items. 4. Which one of the

    asked by beth
  49. Math

    The Lifetimes of a certain brand of photographic light are normally distributed with the mean of 210 h and a standard deviation of 50 h. What percent of lights will need to be replaced within 233 h? Out of 2000 lights, how many will have a lifetime between

    asked by Jerry
  50. World History

    This man was responsible for the painting of the Sistine Chapel, as he spent 4 years lying on his back atop a scaffold , just a few feet from the ceiling.?

    asked by dave
  51. chemistry

    How many grams of oxygen gas can be produced when 4.50 L of NO2 react according to the equation below at 427 ¨¬C and 1.15 atm? 4NO2(g) + 6H2O(g) ¡æ 7 O2(g) + 4NH3(g)

    asked by katydid
  52. physics

    Marks: 2 The emf produced in a generator is What is the frequency of rotation of the circular coil? Choose one answer. a. 100 Hz b. 60 Hz c. 50 Hz d. 25 Hz

    asked by unknown
  53. science

    if 100g of water at 20 degrees C absorbs 5kj of heat, what amount will the temerature of the water increase?

    asked by harold
  54. Math

    Solve the logarithmic equation. Express your solutions in exact form only. Please show all of your work. log3(x+2) + log3(x+8) – 2 = log3(x+3)

    asked by Allison - Carson
  55. Math

    3 questions if you can help me. 1. Calculate the number of subsets and the number of proper subsets for the set. {x|x is a day of the week} 2. Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the

    asked by Roger
  56. chemistry

    I would really like help for this question ASAP! pleasee! I thank you ahead of time. The question refers to an experiment using equal volumes of O2 gas and three other gases "X", "Y", "Z", at the same temperature and pressure. If the respective masses are:

    asked by md.
  57. algebra

    • After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the process of checking an answer with an example

    asked by Gladys
  58. algebra

    Joe has a collection of nickles and dimes that is worth $7.65.If the number of dimes was doubled and the number of nickles was increased by 35, the value of the coins would be $14.30. How many nickles and dimes does he have?

    asked by mema
  59. math

    Phil had an unpaid balance of $1,854.50 on his credit card statement at the beginning of December. He made a payment of $45.00 during the month. If the interest rate on Phil's credit card was 2.5% per month on the unpaid balance, find the finance charge

    asked by CC
  60. fractions

    fraction word problem. please advise on how to work the problem Phillip and Jane had a pie each. Phippip ate 1/4 of his and Jane ate more of the pie than Phillip. Which fraction of his pie could Jane have eaten. Possible answers: 2/5 1/6 2/8 or 1/8

    asked by Suzanne
  61. math

    When a single card is drawn from a shuffled deck of cards, find the odds against getting a 9.

    asked by CC
  62. 6th grade fraction comparisons

    Which numbr is greater than 3/4. The possible answers are 75/100 , 11/12, 2/3 or 3/8. I thought that I would try the method of making the denominator the same by the lcd. 75/100 is equal to 3/4 mult denom/number by 3 and got 9/12 so don't know how to

    asked by Linda
  63. science(physics)

    two forces are in the ratio 1:2 named p and q.if their resultant is at an angle tan inverse root 3 /2 to vector p then the angle between p and q is ? Plz solve.

    asked by marley
  64. chemistry

    If 1500 blood cells were lined up, they would make a row 1.0 inch long. What is the average diameter of the blood cells in micrometer(If l inch = 2.54cm)?.

    asked by Elizabeth
  65. health

    How might the increase in medical technology have a negative effect on communication among providers? Provide at least two examples. Are there any positive effects of increased technology on communication among providers? Why or why not? How does the

    asked by tina
  66. health

    How might the increase in medical technology have a negative effect on communication among providers? Provide at least two examples. Are there any positive effects of increased technology on communication among providers? Why or why not? How does the

    asked by tina
  67. TRIGONOMETRY *(MATHS)

    Q.1 Prove the following identities:- (i) tan^3x/1+tan^2x + cot^3x/1+cot^2 = 1-2sin^x cos^x/sinx cosx (ii) (1+cotx+tanx)(sinx-cosx)/sec^3x-cosec^3x = sin^2xcos^2x.

    asked by MATH...............
  68. Chemistry

    A certain headache relief tablet is composed of monoprotic acetylsalicylic acid(C9H8O4(s)) and an inert filler. A 4.00 g tablet was crushed and dissolved to make 40.0 mL of solution. The solution was then titrated with 0.900 mol/L NaOH(aq). The volume of

    asked by Maya
  69. algebra

    solve using the subsitution method 4x+4y=36 4x+4y=12 If the system has no solution or an infinite number of solutions, please help me understand it.

    asked by mema
  70. aleg/trig

    two forces of 14and 30 act on a body forming an obtuse angle w/ eachother. if the resultant is 60, whats the angle betweeen the 2 forces?

    asked by Angel
  71. english

    what is a direct performative aspect? (as in poetry or drama)

    asked by rita
  72. Trig

    give the value of tan(arctan x+1/x-1+arctanx-1/x)

    asked by Mike
  73. Algebra

    Determine whether the given numbers are solutions of the inequality. 4, -11, -19, -1 y-8>2y-3 Are any of these numbers a solution of the inequality? Which are not? My answer is none of them are a solution because the answer to the inequality is -5. Or am I

    asked by samae
  74. Math - x-intercepts and y-intercepts

    Hi, can someone help me with intercepts. find the intercepts of f(x) = x^2 - 6x - 2 can someone show how to work this problem. thanks.

    asked by CheezyReezy
  75. math

    A $400 loan is to be paid off in 66 monthly payments of $11.62. The borrower decides to pay off the loan after 18 payments. Use the rule of 78s to find the amount of interest saved. (Points : 1) $194.13

    asked by CC
  76. math

    A company borrowed $1500. It must make monthly payments of $40.50 for 42 months to pay off the loan. Use the constant ratio formula to find the annual percentage rate.

    asked by CC
  77. Maths arithmetic

    Calculate the common difference of 8; 16; 24

    asked by Khoza Maria
  78. math

    Two dice are rolled. Find the probability of getting a 5 on either die or the sum of both dice is 5.

    asked by CC
  79. math

    Katie had an unpaid balance of $1,734.50 on her credit card statement at the beginning of January. She made a payment of $165.00 during the month. If the interest rate on Katie's credit card was 7% per month on the unpaid balance, find the finance charge

    asked by CC
  80. algebra

    On August 26, 1989, a train in south africa carried a record number of 660 cars. what was the length of the train?

    asked by Anonymous
  81. algebra

    I need to simplify (6x^2y^3)(9x^2y^3)/3x^2y^2. I don't know whether I'm supposed to multiply or divide or both?

    asked by Lori
  82. MATHS

    STORY PROBLEM A number divided by 15 gives 451 as quotient and 13 as remainder.What is the number?

    asked by Anonymous
  83. Algebra

    I need help with these two problems. I need to have all of the steps shown for full credit and I get lost along the way. 6x - 2y = 10 4x + 3y = 12 solve the system by elimination. solve inequality -2(2x-6)-4x>or equal to 3x-10 + 9 It's at this point in our

    asked by aria
  84. Algebra!

    Which ordered pair is a solution to the system y(line under)-x-1? A. (0,-2) B. (1,2) C. (-5,0) D. (0,-5) I'm thinking it's B.. but i need some help with this.

    asked by Allyson
  85. science

    what entropy changes occur whin a substance melts?

    asked by harold
  86. Math - Problem4

    Solve the inequality. Express your solution using interval notation and please show all of your work. x^4 - 7x^2 - 14 > 0

    asked by Greg - PV
  87. Solve the equation log (little 3) X + log (little6

    log (little 3) X + log (little6) X = 2 the answer is 3.9 can anyone please explain how do you get this answer? Thank you

    asked by Tracy
  88. maths (trigonometry)

    how can we calculate the value of Sec50 degree+tan 50 degree

    asked by marley
  89. Math - operation on function

    Given f(x)=sqrt(x) and g(x)= 6x -5, find f+g, f-g, f*g, and f/g

    asked by CheezyReezy
  90. Geometry

    A box is filled with 6 cans of tennis balls. If the emply space was filled with sand, how much sand is needed to fill the box? Each can has a radius of 2 in. Height of box is 12in.

    asked by jean
  91. art

    You've just come up with an idea for an oil painting and you're anxious to get started. Which one of the following surfaces would allow you to begin the soonest?

    asked by liliy
  92. CHEM 111

    What is the Ka value of acetic acid from the pH of the buffered solution? pH=4.39 of 25ml of HC2H3O2 with .410g NaC2H3O2 added. Ka = [H3O][C2H3O2] / [HC2H3O2]

    asked by Anonymous
  93. science

    if a 10 microfarad capacitor and a 20 microfarad capacitor are connected in series what if the equivalent capacitance of the series combination?

    asked by harold
  94. algebra

    Use polynominal long division to divide -4x^3+24x^2-24x+4 by x^2-5x+1

    asked by mema
  95. ap history

    what was john walthall alleged offense?how might one account for the ferocity of the assault on carter's family walthall? I believe he sleeps with white women but i don't know what he stole. I don't understand the second question. please help me coz i need

    asked by heather
  96. math

    65% of 13

    asked by Anonymous
  97. math

    Dr. Collins borrowed some money to buy new furniture for her office. She paid $720.00 simple interest on a 7.5-year loan at 16%. Find the principal.

    asked by CC
  98. math

    Two dice are rolled. Find the probability of getting a sum greater than 8. 0 13/36 2/9 5/18

    asked by CC
  99. math

    If two people are selected at random, what is the probability that they were both born in winter (December, January, or February)?

    asked by CC
  100. math

    can someone help me find a way to remember the order of operations!? thanks.

    asked by anonymous.
  101. math

    If two people are selected at random, what is the probability that they were both born in May?

    asked by CC
  102. math

    In a shop there are 20 customers, 18 of whom will make a purchase. If three customers are selected, one at a time, at random, what is the probability that all will make a purchase?

    asked by CC
  103. world history 10

    What transportation vessel and animal are on the family crest of the McDonalds of Scotland ? (Mr. G's ancestors)

    asked by dave
  104. science(physics)

    when two forces of magnitude p and q are perpendicular to each other their resultant is of magnitude 'r'. When they are at an angle of 180 degree to each other their resultant is 'r root 2'find the ratio of p and q.

    asked by marley
  105. Security

    Should these roles be included in a procedures manual? Why or why not? How can a company or organization balance the use of non-security personnel during a disaster or emergency with safety and liability issues? Explain your answer.

    asked by Anonymous
  106. physics

    Marks: 2 The magnetic field of a circular loop of wire changes from 0.3 Tesla to 0.4 Tesla in 0.2 seconds. What is the induced emf produced in a coil if the area of the circular loop is 1m2? Choose one answer. a. 0.1 V b. 0.2 V c. 0.5 V d. 0.6 V

    asked by unknown
  107. mathematics

    what are the 20 terms that are used in mathematics

    asked by renee
  108. Adult Education

    This question tells me add or subtract as directed and reduce answers to lowest terms. 2 3/10 + 9 4/5 Im not understanding the steps at all??? ive tryed 4 GED books and even the Teacher isent able to properly explain is a way that i can understand.

    asked by Francisco Cantu
  109. hum/176

    Is this a good thesis sentence? Music is more than just entertainment; it has physical and psychological effects on humans and animals and is the totality of ideas, perspectives, attitudes, images and other phenomena that are deemed preferred per an

    asked by b-more-nappy
  110. science

    when a reaction in solution produces energy, what happens to the temperature of the solution?

    asked by harold
  111. Math 3

    Find the inverse of the function f(x) = 5 – e^(x-1). Determine the domain, range, and asymptotes of the function and its inverse function. Please show all of your work.

    asked by Allison - Carson
  112. Math Problem2

    List all possible rational zeros for the polynomial below. Find all real zeros of the polynomial below and factor completely. Please show all of your work. f(x) = 5x^4 – x^3 - 33x^2 – 43x – 16

    asked by Greg - PV
  113. Math- Problem3

    Solve the following inequality and write your answer using interval notation. Please show all of your work. (1 / (x+8) ) ≤ ((8-5x)/43)

    asked by Greg - PV
  114. Math - Domain and Asymptotes

    Given the following rational function: f(x) = (x^2 + 6x - 8) / (x – 5) (a) state the domain. (b) find the vertical and horizontal asymptotes, if any. (c) find the oblique asymptotes, if any.

    asked by Greg - PV
  115. social studies

    Was the Battle of Antietam a Union victory, defeat, or was it a stalemate ? Give reasons for your answer.

    asked by Joanne
  116. chemistry

    I would really like help for this question ASAP! pleasee! I thank you ahead of time. The question refers to an experiment using equal volumes of O2 gas and three other gases "X", "Y", "Z", at the same temperature and pressure. If the respective masses are:

    asked by md.
  117. Math - Properties of Logarithm

    Can someone show how to this question. Loga(x+3) + Loga(x-3) = 3 I don't know if I'm typing this correctly the a is the base. So, I'm thinking, Loga((x+3)(x-3)) = 3 (x+3)(x-3) = 3^a x^2 - 9 = 3^a, x^2 = 3^a + 9 x = sqrt(3^a + 9) but now I'm stuck, I don't

    asked by Greg
  118. Math

    3 questions if you can help me. 1. Calculate the number of subsets and the number of proper subsets for the set. {x|x is a day of the week} 2. Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the

    asked by Roger
  119. maths (trigonometry)

    how can we calculate the value of Cos 10+sin 10/cos 10- sin 10

    asked by marley
  120. algebra

    Use the discriminant to determine the following equations have that are two different rational solutions:two different irrational solutions or exactly one rational solution or two different imaginary solution. x^2=5x+6

    asked by mema
  121. Finance

    suppose a computer that costs $3000 new is only worth after 3 years .What is the average annual rate of depreciation?

    asked by nancy
  122. Algebra

    Find the average rate of change of f(x) 3x^2-4x from x=3 to x=6 . Simplify your answer as much as possible.

    asked by Jessica
  123. algebra

    Solve using the elinination method 2x+2y=20 2x-2y=4

    asked by mema
  124. geometry

    if the measure of angle 1 is 6n+1 and of angle 4 is 4n+19 what is the measure of angle 2 ?

    asked by cole
  125. algebra

    Subtract (4x+17xy-9y)-(5x-8xy)

    asked by mema
  126. algebra

    Given the quadratic function f(x)=9x^2-36x+36 find a value of x such that f(x)=9

    asked by mema
  127. algebra

    Multiply -5x+4 by 4x^2+x

    asked by mema
  128. algebra

    how to prove that (a^2-b^2)^3+(b^2-c^2)^3+(c^2-a^2)^3=3 (a^2-b^2)(b^2-c^2)(c^2-a^2) please help

    asked by pavatharani
  129. math

    65% of 13

    asked by Anonymous
  130. geometry

    Refer to the diagram. AD = 24 cm; AC = 1/3 AD; DE = 18 cm; ∆ ABC ~ ∆ AED. AB=

    asked by Anonymous
  131. Math

    I'm kinda stuck on my math homework, does anyone know how to do it? The results of a blood test at a medical lab are normally distributed with a mean of 60 and a standard deviation of 15. How low must a score be to lie in the lowest 5% of the results?

    asked by Andy
  132. ap history

    Ms. Sue - thank you for your answer. i understand the second question now but i really don't know much why. is it because at that time people hate blacks like the kkk during the restoration period?i tink john stole something else. it says in the book that

    asked by heather
  133. Psychology

    In this memory process, the individual records information to prepare it to be entered into memory. Storage Encoding Retrieval Priming i think the answer is encoding but then im confused?

    asked by Jesse
  134. psychology

    I need a couple good examples are used in descriptive research in psyschology?

    asked by Sharon
  135. Psychology

    Repeatedly reciting a sequence of words: A) activates different brain areas than when the word sequence is spoken the first time. B)is a characteristic symptom of the disorder known as Korsakoff’s syndrome. C)minimizes the effects of proactive

    asked by Jesse
  136. Algebra

    Determine whether the given numbers are solutions of the inequality. y-8>2y-3 4, -11, -19, -1 (are any of these numbers a solution to the inequality?)

    asked by Ann
  137. math

    coat with an original price of $300.00 is on sale for $285.00. Find the percent of the markdown.

    asked by CC
  138. english

    Identify the complete adjective clause and the omitted introductory word. The car I drive has 50,000 miles on the odometer.

    asked by Daniel
  139. Class 12th : Calculus

    If y = sqrt(x-1)+sqrt(x+1),prove that sqrt(x^2-1)dy/dx=1y/2

    asked by Akash
  140. Algebra

    Write the solution in interval notation x=-2. ) What would the compound inequality look like? Thanks for the help!

    asked by Ann
  141. algebra

    k=(2c-9d)/8

    asked by rena
  142. geometry

    Given: angleA=angleR,anglePKA=angleRPK Prove: angleRK-angleAP

    asked by Miranda
  143. physics

    i need a mathematical relationship between density and height

    asked by ben
  144. com 155

    Are these sentences using the adjective and adverb correctly? Do they make sense? 1) The girl is a "bad" softball player.(Adjective) 2) The girl played softball "badly." (Adverb) 1) I am "cautious" when I run at night. (Adjective) 2) I "cautiously" run at

    asked by blake
  145. med term

    In theses 2 scenarios im suppose to find 15 med words and define them, now I have found more then 15 am I correct that there is more then 15? Don't want to know what they are just want to know that there is more then 15 I. AMBULATORY CARE FACE SHEET Admit

    asked by Denise
  146. geography

    European Union would be what type of Region?

    asked by Ryan
  147. algebra

    Determine whether each pair of equations represents parallel lines 3x=5y-2 and 10y=4-6x

    asked by Sonya
  148. Ninth grade

    How would I solve this? I'm totally stumped and I need some help. Solve by elimination 3x-2y=-4 and under it is 7x-4y=-6 Any clue? Thanks!

    asked by Allyson
  149. Alegebra

    an equivalent expression of xz is ?

    asked by Anonymous
  150. Children's Literacy

    Discuss the conflict between childhood and adulthood in Charlotte's Web. Think about how the adults are portrayed, how the children are portrayed, and how the adults interact with the children. Use examples from the novel to help support your answer. It

    asked by Thara
  151. Science

    how would you make 1 molar solution using 4 molar solution and pure water?

    asked by Kayla
  152. Math - 2

    Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. (e^(2x) – 10e^x) / 13 = 3

    asked by Allison - Carson
  153. science

    what changes in an atom produce an atomic spectrum?

    asked by harold
  154. Math 4

    For the given functions f(x) = ln(x) , g(x) = |x| - 7, h(x)=5x+6 find f o g o h and state the exact domain of f o g o h. P lease show all of your work.

    asked by Allison - Carson
  155. Math

    Solve the following equation in the complex number system. Please show all of your work. x^4 – 13x^2 – 90 = 0

    asked by Greg - PV
  156. chemistry

    if u have a sample of silicon with a mass of 306.0, how many cm3 of mercury do you have?

    asked by fransico
  157. science

    A piece of Aluminum wire Android a 50-pound Aluminum both have the same density. Why?

    asked by fransico
  158. beer's law plot

    name and give the formula for two cations that you think could be anailzed quantitatively by visible spectroscopy

    asked by Anonymous
  159. social studies

    Was the Emancipation Proclamation more important to the American domestic audience with European powers ?

    asked by Joanne
  160. english

    What is the verb in the following sentence Her outgoing voice mail message sounds professional?

    asked by sue
  161. english

    Can you begin a sentence like so.. Well dressed John was smart, funny, and everyone loved him.

    asked by Denise
  162. Composition

    Can youplease help me choose the correct word to use? I don't know (who/whom)I should call to babysit?

    asked by Tori
  163. tax accounting

    bruce wilson won 2 million in the state lottery. the lottery pays out the prize money in 20 annual installments of 100,000 each. After receiving three 100,000 installments, bruce sold the remaining 1.7 million of payments for 1 million. He wants to report

    asked by will smithe
  164. Algebra II

    Mulitple Choice Find cos0 if sin0=3/5 and 90 degrees

    asked by HotMath
  165. Math - Trig

    Let Vector V(t) = 2pi t î + 2pi t ĵ. Find the vector V(1/3). Where is the vector after the next 1/3s? What is the angular speed?

    asked by Susan
  166. Algebra II

    Simplify(Multiple Choice) (1-csc^2 0)/(cot^2 0) A.)-1 B.)1 C.)tan^2 0 D.)1/sin^4 0

    asked by HotMath
  167. algebra

    solving the equation (x+4)(x-4)=9 Eric stated that the solution would be x+4=9>x=5 or (x-4)=9=>x=13 However one of these solution fails to work when subsituted back to the original equation. Why?olve and explain the reasoning. Can someone please help me?

    asked by mema
  168. geometry

    the exterior angle in a pentagon have an extended ratio of 2 : 4 : 5 : 9 : 1 How Big is Each angle?

    asked by Anonymous
  169. algebra

    If a stone is thossed from the top of a 230 meter building, the height of the ston as a function of time is given by h(t)=9.8t^2-10t+230 t is seconds and h in meters. How many seconds will the stone hit the ground?Round to the nearest hundredreths place

    asked by mema
  170. English - Native speakers

    Hello! What is the difference between switch off the TV and turn off the TV?

    asked by Mark
  171. Physic

    what is the focal length of a plane mirrior which is 4m tall?

    asked by Daniel
  172. hindi

    five sentences oncarrot,potatoin general

    asked by sita
  173. algebra

    write with postive exponents. Assume that even roots are nonnegative quantities and the demoninators are non zero (2x/y^2)-^4

    asked by mema
  174. Social Studies

    The most useful indicator of the degree of democracy reached by a particular society is whether it has a?

    asked by Shondreka
  175. URGENT HELP QUICK math rate of change

    A line with a slope of -2 passes through the point (1, 7). What is the closest point on the line above (1, 7) which has whole number coordinates?

    asked by chelsea
  176. algebra

    express in terms of i 3/-104

    asked by mema
  177. Calculus ll

    find the second order derivative, rxy(x,y) for r(x,y)=xy/8x+5y

    asked by Chris
  178. Math

    show that AB // DC,A=(0,2),B=(4,-1),C=(1,-5),D=(-3,-2)?

    asked by Anonymous
  179. algebra/trig

    x^2+2x-15=0 solve by completing the square

    asked by Angel
  180. Quick Math Question

    I want to shampoo my mattress with a cleanser. On the directions it reads "Do not use on products coded "X" Om my mattress under "Finished Size" it reads 35" X 74 1/2" What does that read in Math terms? I want to make sure I don't ruin my Mattress. :')

    asked by Willy Wonka
  181. Organic Chemistry

    What will be the result when ketone is added with ethylene glycol and TsOH?

    asked by Stephanie
  182. biology

    I did a lab with catalase breaking down hydrogen peroxide. A question asks, what gas is being formed (oxygen), suggest a method I could use to determine this. I don't know any method?

    asked by Tone