Questions Asked on
May 20, 2013

  1. physics

    A mechanic lifts the front of a car with a jack. Find the mechanical advantage if a force of 30.0 lb on the jack handle lifts the car that weighs 960 lb

    asked by help ASAP
  2. Math

    What is the net price factor for trade discounts of 25/15/10? Use the net price factor you found in the previous question to find the net price of a couch listed for $800.

    asked by Denise
  3. Math

    What is the net price factor for trade discounts of 25/15/10? Answer: .57375 Just checking my homework answers

    asked by Ann
  4. Civic

    The present-day Republican Party is descended from the ____ Party. A. Anti-Federalist B. Democratic Republican C. Federalist D. Conservative Answer is "D"

    asked by Jen
  5. CHEMISTRY

    1.List all the ions that cause a red flame and produce a precipitate in the presence of hydroxide ions. 2.List all the cations that could cause the red flame and produce a precipitate in the presence of sulfate ions. 3.

    asked by NEED help PLEEASE!!
  6. Chemistry

    In order to completely neutralize 0.985 mol of sodium hydroxide, 43.2 mL of an acid is required. The concentration of the acid is: a) 2.3 M b) 22.8 M c) 31.0 M d) 48.2 M Is it b?

    asked by scilover
  7. Chemistry

    In the system A(g) + 2B(g)  2C(g) + 2D(g) H=21 kJ/mol, it is possible to increase the quantity of C by: a) adding a catalyst b) decreasing the [B] c) increasing the pressure d) increasing the temperature - I think it is b ? Am i right?

    asked by scilover
  8. Chemistry

    If a 0.1 mol/L solution is diluted to 0.01 mol/L, the: a) concentration of hydrogen ions increases b) pH decreases c) acidity constant decreases d) the acidity constant does not change I would think the ph decreases? no?

    asked by scilover
  9. Algebra

    An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = -4.9 t^2 + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How

    asked by Amy
  10. english

    Her daughter likes climbing trees. Gerund or gerund phrase: Noun function:

    asked by Anonymous
  11. math

    How many different rectangular prisms can you make with volume 24 cm3? Sketch each prism you find. Label each sketch with the dimensions. How do you know the prisms are different?

    asked by Anonymous
  12. maths-formula

    2a^3+2b^3+2c^3-3abc=?

    asked by anoynomous
  13. physics

    An athlete is running at a constant velocity with a javelin held in his right hand. The force he is applying on the javelin as he carries it is 5.0 newtons. If he covers a distance of 10 meters, what work has he done on the javelin?

    asked by Anonymous
  14. Finance and literacy

    Bailee had a gross income of $2358.33 during each pay period in 2009. If she got paid monthly, how much of her pay was deducted for FICA in 2009

    asked by dericka
  15. Psychology

    When physical energy has resulted in a response in a sense organ, it is clear that: A. perception has taken place. B. the activation is the result of stimulus. C. the brain has interpreted the event. D. a single isolated sense is now perceiving the event.

    asked by Angela
  16. Psychology

    As a scientist, Carl is concerned with the intensity of lights in the modern human environment. In his research project, Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed. Group

    asked by Angela
  17. Psychology

    Meditation results in an altered state of consciousness by: A. reducing the activity level. B. lowering the heart rate. C. decreasing the use of oxygen. D. refocusing attention.

    asked by Angela
  18. Psychology

    Sound which impinges on the inner ear and the auditory nerve arrives as a fairly meaningless stimulus. At this point, it should be viewed as: A. perception. B. sensation. C. an auditory stimulus item. D. free of environmental noise. I think it is

    asked by Angela
  19. Psychology

    n a classroom experiment, students were asked to place one paper clip in each hand. They were then instructed to add paper clips to the left hand until they were certain that the clips in the left hand weighed more than the paper clips in the right hand.

    asked by Angela
  20. Psychology

    Barry knew Alice was tired, but he was surprised that the argument between their three-year-old twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in: A. stage 2 sleep.

    asked by Angela
  21. Psychology

    Avis put off writing her term paper until three days before it was due. "It's not that big of a deal. I can whip it out in a couple of hours," she thought. As it turned out, this was not the case. She averaged two hours a night sleep as she struggled to

    asked by Angela
  22. Psychology

    Although someone who is hypnotized may be compliant and susceptible to suggestion, it is clear that: A. they are pretending and know exactly what they are doing. B. they will be able to recall the directions and events which took place after they return to

    asked by Angela
  23. science

    is batteries powering a flashlight an example of chemical potential energy to electrical energy?

    asked by Anonymous
  24. physics

    A tennis ball with a speed of 12.5 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 11.4 m/s. If the ball is in contact with the wall for 0.0139 s, what is the average acceleration

    asked by john
  25. Psychology

    Bryan was edgy and seemed to lose his temper at the drop of a hat. His sister suggested that he would benefit by practicing an altered state of consciousness. He was surprised to hear his sister suggest that he should take drugs, but was soon corrected

    asked by Angela
  26. Psychology

    Monique cannot seem to sit still, talks rapidly, and never seems to get tired at the end of the day. Her friends suspect that she is taking: A. cocaine. B. Rohypnol. C. LSD. D. speed. cocaine

    asked by Angela
  27. Physics

    Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2, as shown. If M1 = 1.06 kg, M2 = 3.80 kg, and F = 4.85 N, find the size of the contact force between the two blocks. If instead an equal but oppositely directed force

    asked by Kayleigh
  28. Periodic Function (Trigonometric Fuctions)

    A lighthouse beacon rotates through 360 degrees every 12 seconds, it is located 100 m off the shore of an island with a coastline of steep cliffs running north and south. As the light beam sweeps clockwise, starting from the north (direction of 0 degrees),

    asked by Sammy
  29. calculus

    The demand function for a product is given by p = 10,000(1 − (5/5 + e^−0.001x)) where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500.(Round your answers to

    asked by steve
  30. Physics

    A myopic student is shaving without his glasses. If his eyes have a far point of 1.5, what is the greatest distance he can stand from the mirror and still see his image clearly?

    asked by Anonymous
  31. Math

    Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount? Answer: 203.99 What is the net price of each Natureland Garden Center lawn mower? Answer: 475.96 Just want to make

    asked by Ann
  32. 7th Grade Math

    A pentagonal prism has dimensions that are four times the dimensions of a similar pentagonal prism. So its volume is _____times the volume of the smaller prism. A) 64 B) 8 C)16 D)4 Would it be A) 64? Next Question: If the dimensions of a cylinder are

    asked by Daniel
  33. Physics

    The answer is in parenthesis, but I just don't get it. 11. The large window air conditioner in Anita Breeze's room draws 11 amps of current. Determine the quantity of charge that will pass through Anita's window AC in the next 10 minutes. (6600 C)

    asked by RaChaad
  34. Geometry

    What is the perimeter and area of a rectangle that has a width of 6 inches and length of 8 inches

    asked by Lee
  35. Math

    Reasoning To measure the length of a closet, Aaron used his foot and measured 6 foot-lengths. His father measured 4 foot-lengths. Could they be measuring the same closet? Explain.

    asked by Quan
  36. math

    . I am thinking of a whole number. If I divide it by 13, then multiply the answer by 12, then subtract 20, and then add 89, I end up with 93. What was my original number?

    asked by Anonymous
  37. heeeeeeeeeeeeeelp Physics

    A 15 kg, 1m wide door which has frictionless hinges is closed but unlocked. A 400 g ball hits the exact middle of the door at a velocity of 35 m/s and bounces off elastically, thereby causing the door to slowly swing open. How long in seconds does it take

    asked by Anubhav
  38. French (again)

    Could someone please correct the following sentences for grammar and spelling? Le mémorial et le cimetière Américain est un Américain mémorial pour le deuxième guerre mondiale. Au mémorial, vous pouvez prier et prendre des photos. Le Musée Airborne

    asked by Deidre
  39. Finance and literacy

    A college professor's compensation package includes the total cost of a $350-per-month health insurance plan, the total cost of a $45-per-month life insurance plan, and a salary of $65,000 per year. What is the yearly value of the compensation package?

    asked by dericka
  40. calculus

    For the function f(x) = 3x2 − 5x − 7. Find the rate of change of f(x) at x = 3

    asked by Grant
  41. calculus

    A manufacturer wishes to produce the most economical packaging for detergent. The containers need to hold 25litres and must be cylindrical in shape. What dimensions will ensure that the least amount of plastic is used to create the containers. (Note: the

    asked by Mat
  42. Psychology

    Drug addiction occurs when: A. an individual will lie about taking a drug. B. a drug no longer causes a person to get high, but they take it again. C. biological or psychological dependence on taking the drug develops. D. a person can be without the drug

    asked by Angela
  43. economics

    1. The south african government is not providing enough welfare of subsidies to the poor and underpriviledged - info. 2. what are welfare payments? 3. what are the costs & consequences of providing the subsidies & welfare? 4. Are there any welfare or

    asked by shivek
  44. Math

    Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount?

    asked by Denise
  45. Math

    What is the net price of each Natureland Garden Center lawn mower?

    asked by Denise
  46. Chemistry

    Oxygen gas and hydrogen gas are used to synthesize dihydrogen monoxide. A lab group utilizes 1.00 liters of oxygen and 1.01 liters of hydrogen to create 0.75 grams of product. How many milliliters of product should the group have expected to get? What will

    asked by Adam
  47. Introduction to Psychology

    According to the James-Lange Theory, crying over spilled milk will result in:

    asked by Anonymous
  48. Physics

    A wheel and axle arrangement has an axle with a diameter of 25cm. A rope is wrapped around the axle and is supporting a load of 2 tonnes. 1)If the mechanical advantage of the system is 30, determine the diameter of the wheel. ANSWER = m 2)Determine the

    asked by Danny
  49. physics

    A rigid tank contains 38:0 kg of O2 gas at a pressure of 9:70 atm. If the oxygen is replaced by helium, how many kilogram of helium will be needed to produce a pressure of 8:00 atm?

    asked by miya
  50. Science

    The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance the galaxy is away from us. This relation, v=Hd is known as Hubble's law and the constant H is known as Hubble's constant. The

    asked by Abhishek Ranjan
  51. physics

    You're quietly sitting by a street one day, enjoying the sun, when you notice a speeding car traveling at 20 m/s down the street. The driver notices that there's a stop sign in the street and hits the brakes 40 m before the stop sign, coming to a stop

    asked by hemant
  52. Physics

    A lady applies makeup using a concave mirror with a focal length of 10 cm. At a distance of 6 cm from the mirror, how large does her 4 cm wide eye appear? Solve mathematically

    asked by Desperate
  53. Math

    ABCD is a parallelogram. E is a point on DC extended, such that D and E are on opposite sides of BC. Let AE intersect BC and BD at F and G, respectively. If AG=180 and FG=108, what is EF?

    asked by John
  54. physical science

    you do 16,000 j of work on a 45 kg box intitally going 11.8 m/s. How fast is it going now?

    asked by Wayne
  55. Math

    solve 3^X=7 giving exact answer to the base 10

    asked by Alida
  56. AP English Lit

    Hi, I have a question that I'm stuck on. Do you know what kind of poem William Butler Yeats's poem "When You Are Old" is? That is, is it a sonnet or an epic or something else altogether? Please help! Here is the poem: When You Are Old When you are old and

    asked by Kate
  57. statistics

    Suppose you are trying to estimate the percent of women in a city. Other things being equal, a simple random sample of 0.1% of the population of a city that has 2,000,000 people is ________ as a simple random sample of 0.1% of the population of a city that

    asked by sarah
  58. math

    Mr.Edwards is now three times as old as his daughter, in 15 years' time the sum of their ages will be 86. a.)How old are they both now? b.)How old was Mr.Edwards when his daughter was born? Write and solve an algebraic equation or inequality for this

    asked by Janie
  59. statistics

    Suppose you are trying to estimate the percent of women in a city. Other things being equal, a simple random sample of 0.1% of the population of a city that has 2,000,000 people is ________ as a simple random sample of 0.1% of the population of a city that

    asked by sarah
  60. Physics

    Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2, as shown. If M1 = 1.06 kg, M2 = 3.80 kg, and F = 4.85 N, find the size of the contact force between the two blocks. If instead an equal but oppositely directed force

    asked by Kayleigh
  61. Physics..Elena or anybody please help

    I(mass=80 kg) sit down in the center of a trampoline and the surface sinks down by a distance of 10 cm when I reach equilibrium. How far above the ground in m must the trampoline be placed so that if I jump onto the trampoline from a height of 3 m above

    asked by Help please
  62. Physics

    Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2, as shown. If M1 = 1.06 kg, M2 = 3.80 kg, and F = 4.85 N, find the size of the contact force between the two blocks. If instead an equal but oppositely directed force

    asked by Kayleigh
  63. chemistry

    When a 4.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 1.797 kJ·K–1, the temperature decreases by 0.400 K. Calculate the molar heat of solution of KCN.

    asked by kitor
  64. physics

    An electron is accelerated from rest by a uniform electric field of 3310V/M that is vertically pointing up, if the electron is traveling 6200000m/s how far (m) has it traveled in the electric field?

    asked by angela
  65. Physics

    I(mass:80kg) sit down in the center of a trampoline and the surface sinks down by a distance of 10 cm when I reach equilibrium. How far above the ground in m must the trampoline be placed so that if I jump onto the trampoline from a height of 3 m above the

    asked by Sambit
  66. economics

    An individual who owns a share of a corporation and is entitled to part of its profits is a: A. director B. officer C. president D. stockholder

    asked by Mitchel
  67. Physics

    A 15 kg, 1m wide door which has frictionless hinges is closed but unlocked. A 400 g ball hits the exact middle of the door at a velocity of 35 m/s and bounces off elastically, thereby causing the door to slowly swing open. How long in seconds does it take

    asked by Dan
  68. Math help needed

    1. x^9 over x^2 (1 point) x^11 x^7 7 x^5 2. H^14 over h^5 (1 point) h^-9 1 over h^9 h^19 h^9 3. 4^4 over 4^6 (1point) –16 16 1/16 –1/16 4. 50 (1 point) 0 5 1 –5 Please I barely understand this but Ima try to put in what I think it is. MY answers: 1.

    asked by This Girl
  69. statistics

    A gambling game pays 4 to 1 and the chance of winning is 1 in 6. Suppose you bet $1 on this game 600 times independently.Find the expected number of times you win?

    asked by anju
  70. History

    1)what aspect of the government of the chartered companies would be considered democratic? a)the assignment of a gouvernment b)the right to fail or succeed c)the beaver aristocracy d)the representative body e)the monopoly on the fur trade i put d 2)which

    asked by Alana
  71. math

    what is square root of 0.31428 from divison method.

    asked by harry please hurry
  72. math

    what is square root of 0.31428 from divison method.

    asked by harry please hurry
  73. math

    1. nathan is climbing 25ft ladder oeaning against a tree. the foot of the ladder is 15ft from the base of the tree, what is the measure of the angle the ladder makes with ground. 2.erin is flying an plan at 3000 ft high, she sees her house at 32 degrees

    asked by rhita
  74. Physics

    Take an average 82 kg pet frog, what's it weight on earth? What is it's weight on the moon?

    asked by Mikayla
  75. pre algebra

    I have a cube of 3 by 3 by 3 centimeters , I paint all the surfaces white. After that I'd take my saw, and saw it into cubes of 1 by 1 by 1. I will have 27 cubes after. How many will have no white color on any surface?

    asked by shannon
  76. help with percents

    what is 5% of a $40.000

    asked by Anonymous
  77. math

    The lemonade recipe calls for 2 tablespoons or 1 ounce of food coloring for every gallon. How many cups of food coloring are there in 16 gallons of lemonade? Please help me and expalin.

    asked by Anonymous
  78. Physics

    Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2, as shown. If M1 = 1.06 kg, M2 = 3.80 kg, and F = 4.85 N, find the size of the contact force between the two blocks. If instead an equal but oppositely directed force

    asked by Kayleigh
  79. economics

    Unions limit the operation of: A. democracy B. the justice system C. market forces D. the military

    asked by Mitchel
  80. Chem

    What is different about neutralization reactions that produce a neutral solution at the equivalence point and those that produce acidic or basic solution? I think it is the concentration of the reactants?

    asked by Anonymous
  81. please hurry

    what is the square root of 0.31428 with explanation.by divison method.

    asked by harry
  82. algebra

    (a1/2b)1/2(ab1/2) how to simplify expression and write with positive exponent

    asked by cynthia
  83. English

    Can somebody please help me write a summary news lead using the story below. The lead may be no longer than 20 words and must be written in the active voice A home at 2481 Santana Avenue was burglarized between the hours of 1 p.m. and 4 p.m. yesterday

    asked by Afranko
  84. physics

    if The magnitude of the nuclear spinangular momentum of a nuclei is 15 /2 units. Then what will be the value of I

    asked by kuldeep
  85. math

    1. the speed of light is 8.0x^8m/s in standard form that is? 2. the average size of a virus is 2x 10^-10 nanometers in diameter. how to write the number(s) given scientific notation in standard form. thank you

    asked by melves
  86. physics

    if The magnitude of the nuclear spinangular momentum of a nuclei is 15 /2 units. Then what will be the value of I

    asked by kuldeep
  87. Math-HELP PLEEEEAAASE

    The volume of a cuboid is 1200cm^3, if the length is 20 cm, give two other pair of values that could be used for its width and height.

    asked by Ashley
  88. Computer Science

    How we develop the game in C language?

    asked by Amit
  89. economics

    Explain three ways the workplace in the US has changed since the 50s.

    asked by mitch
  90. math

    How do i find a fraction between each pair of fractions ex. 1/8 and 1/4

    asked by rochelle
  91. Math

    Sara is 24 years younger than Joe. Six years ago she was half as old as he was. How old is each now?

    asked by Dominic
  92. Grammar (Writeacher)( or Ms. Sue)

    For each of the following sentences, choose the correct verb in parentheses, and write it on your paper. 1. Many of the ships that crossed the Atlantic Ocean during World War II (was, were) filled with supplies. 2. Most of the vessels (was, were) carrying

    asked by Anonymous
  93. science

    how i s fishing line measured

    asked by alex
  94. Physics

    Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2, as shown. If M1 = 1.06 kg, M2 = 3.80 kg, and F = 4.85 N, find the size of the contact force between the two blocks. If instead an equal but oppositely directed force

    asked by Kayleigh
  95. Chemistry

    If 50 mL of a saturated solution of KClO3 at 55¡ÆC is cooled to 15¡ÆC, calculate the mass of precipitate that will form

    asked by LOL
  96. history

    at the time the French controlled the middle part of North America the most important use of the Mississippi River and its tributaries was for a)fishing b)transportation c)natural boundary d)hydroelectric power e)irrigation i put b

    asked by Alana
  97. math

    4x^2+24x+128y-988=0 in standard form

    asked by NIck
  98. 5th gradeMath

    what is the answer to: 6-(1/2+1/3)

    asked by Kim
  99. English

    1. I will go to a baseball game. 2. I like going to a baseball game. 2-2. I like going to baseball games. 2-3. I like going to the baseball game. 3. I like watching baseball games. 4. I will go to the baseball stadium to play baseball against the Tigers.

    asked by rfvv
  100. algebra

    The class average on a math test was 75.5 and the standard deviation was 4.2. Find the z-score for a test score of 81

    asked by Samantha
  101. Creative Writing

    I'm trying to explain something to one of my friends, and unfortunately, I'm not too good at that. Can someone help me explain (in a not-confusing way) WHY you put the comma in this sentence? [Millie, go get the papers off my desk.] or [What's wrong with

    asked by Millie
  102. physics

    How many calories of heat must be added to 455 g of steel to raise its temperature from 20 °C to 192 °C? (Note: csteel = 0.115 cal./g. °C.)

    asked by help please asap
  103. Physics

    A mass m is attached to a weightless string of length L, cross section S, and tensile strength ( the maximum tension it can withstand ) T . The mass is suddenly released from a point near the fixed end of the string. What condition should be on the value

    asked by Rafi Tanzim
  104. social studies

    1. Name the five responsibilities of united state citizens? 2.System of sharing power in the government 3.Name the 6 criteria for becoming a naturalized citizen. 4.Purpose of checks and balances? Please help me!! thanks

    asked by mi
  105. Grammar (Ms. Sue)

    Revise each of the following sentences, filling in the blank with the an appropriate pronoun. Draw an arrow from the pronoun to its antecedent. 1. The students are going ___ first trip to the fire station. 2. Julie and Sara brought ___ notebooks on the

    asked by Anonymous
  106. chemistry

    Explain how dispersion forces, dipole-dipole forces, and hydrogen bonds (intermolecular forces) affect the 2 states of matter using phase changes and heating curves. What is the effect on vapor pressure with dispersion forces, dipole-dipole forces, and

    asked by K
  107. Integrals

    Evaluate the integral of ∫(2x^2 −3)^2 dx

    asked by Grant
  108. English

    1. My summer house is in the fiel. I can take a walk. I can play hide-and-seek, too. I can have fun there. (No problem?) 2. I can raise cows and pigs in a pen. 3. I can pick wild flowers, wild strawberries and mushrooms there. 4. I can have a picnic there.

    asked by rfvv
  109. Mathematics Ms Sue help

    You want to estimate the height of the Empire State Building. You start at its base and walk 15 m away. Then you approximate the angle from the ground at that point to the top to be 88 degrees. How tall do you estimate the Empire State Building to be?

    asked by adam
  110. algebra2

    the denominator of a fraction is 3 less than twice the numerator. if the numerator is doubled and the denominator by 8, the resulting would be 2/3. find the original fractions

    asked by mary
  111. Mathematics Ms Sue help

    How many calories of heat must be added to 455 g of steel to raise its temperature from 20 °C to 192 °C? (Note: csteel = 0.115 cal./g. °C.)

    asked by adam
  112. French

    Hello! Could someone please read this report on my trip to Paris, and correct it? Thank you! Mon voyage en France était très amusant! Nous allé à Paris. Nous regardé l’églises, monté Le Tour Eiffel, et prendre plus des photos! Nous pris un bus à

    asked by Erika
  113. English

    e.g. I want to find out more about what happened. (What is the part of speech of 'more'? Is 'more' an object of 'find out' and a pronoun? Or is 'more' and adverb?)

    asked by rfvv
  114. Calculus

    A particle moves in a straight line under a force such that its displacement s(t), in metres, at time t seconds, is given by s(t) = t3 − 5t2 + 3t +15 (i) Find the expression for the velocity of the particle. (ii) Find the time at which the particle is at

    asked by Pammy
  115. english

    In the story a man called horse what does horse discover about himself and others in his years with the crows

    asked by alexis
  116. Calculus

    Find the derivative of the following function f(x)=(x-3/2x+3)^2

    asked by Mat
  117. Precalc Math

    Suppose you want to end up with $5,000 in a bank account after 4 years earning a rate of 3.5% compounding monthly. How much would you have to initially invest? Round to the nearest dollar. Thanks a lot in advance!! :)

    asked by NIck
  118. Civic

    The main downside of political action committees is A. The powerful influence of PAC lobbies on legislation. B. their support of the military-industrial complex. C. their opposition to democracy. D. the corporate groups can outspend the citizen groups.

    asked by Jen
  119. algebra

    A rectangle has length of 14x^4 and a width of 7x^3. Find the area in square units.

    asked by tammy
  120. intergrations

    ind the volume of the solid that is obtained when the region under the curve y = 4 − x^2/6 is revolved around the y -axis between y = 0 and y = 4 .

    asked by Pammy
  121. Physics

    A pair of eyeglasses is designed to allow a person with a far-point distance of 2.06 to read a road sign at a distance of 20.6. Find the focal length required of these glasses if they are to be worn 2.50 from the eyes.

    asked by Anonymous
  122. Algebra

    SR (2x+6)=2SRx

    asked by Jamila
  123. physics

    An automobile and train move together along parallel paths at 20.3 m/s. The automobile then undergoes a uniform acceleration of −4 m/s2 because of a red light and comes to rest. It remains at rest for 19.4 s, then accelerates back to a speed of 20.3 m/s

    asked by john
  124. Calculus

    Find the derivative of the following function: f(x)= 10x-3/5x +6x

    asked by Mat
  125. math

    convert 2.37 with a reoccurring 37 into a decimal

    asked by lacey
  126. math

    The probability of an event is 20%. how many times should you expect the event to occur in the given number of trials? 1.15 trials 2. 40 trials 3. 75 trials 4. 120 trials

    asked by John
  127. Applied Physics

    An anchor holding a boat stationary on a river forms a 65 degree angle with the river bottom. The anchor line is 40 meters long. Assuming the river has a uniform depth, how deep is the river directly below the boat?

    asked by adam
  128. life orientation

    ways to address air pollution?

    asked by Anonymous
  129. Calculus II

    Find the sum of the series (infinity above sigma) signma and n = 4 3^n-2 divided by 2^2n-3 please I really need help on this

    asked by Sarah
  130. algebra

    there are 30 students in the class the number of boys in 8 more than four times the number of girls.

    asked by maylin
  131. english

    Summary of the soft voice of the serpent

    asked by Wade
  132. Physics

    How much mechanical energy was lost during the ball's fall?

    asked by seth
  133. Chemistry

    how many ml of .5M HCL are required to neutralize 600 mg of Mg(OH)2?

    asked by Aron
  134. math

    A balloonist leaves the ground and ascends 52 ft into the air, releases air, and descends 27 ft. Then, she turns on the gas burners again and ascends 71 ft. What is her height above the ground?

    asked by JEN
  135. Calculus

    Find and classify the relative maxima and minima of f(x) if f(x)= defint a=0 b=x function= t^2-4/(1+cos(t)^2) dt x^2-4/(1+cos(x)^2)= 0 x^2-4=0 x^2=4 x= +/- 2 So I got relative maximum as -2 and 2. And relative minimum as zero. However, when I graph it on

    asked by Eric
  136. history

    First war of haladighat

    asked by shradha
  137. Math

    How do you create a stem and leaf plot using data from a bar graph?

    asked by Tameika
  138. chemistry

    When 3.54 g of a nonelectrolyte solute is dissolved in 675 mL of water at 24 °C, the resulting solution exerts an osmotic pressure of 913 torr.

    asked by kitor
  139. Math

    Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount?

    asked by Denise
  140. statistics

    a company decides to add a new program that prepares randomly selected sales personnel to increase their number of sales per month. The mean number of sales per month for the overall popualtion of sales people at this national company is 25 with a standard

    asked by Anonymous
  141. Grammar (Ms. Sue)

    For each of the following sentences, select the correct pronoun in the parentheses, and write it on you paper. 1. All of us can give some of (our, their) time to volunteering. 2. One of my friends volunteers (his, their) time to work on the ambulance

    asked by Anonymous
  142. math

    Zaid will travel from Boston to Washington, D.C. If the trip is 600 miles, about how fast will he have to go to get there in 10 1/2 hours?

    asked by Anonymous
  143. Math, Please help!

    I'm having a hard time in math, and every time I start my test my eyes glaze over. Can anyone please help me out? (9m+6)+(-5m-6) (3r^2+7r+1)+(4r^2-8r-2) (6h+1)-(9h+4) (-7w^2-2w-1)-(-5w^2 +3w-2)

    asked by Cait
  144. chemistry

    How many grams of carbon dioxide will form if 4.4 g of propane reacts with 16.0 g of oxygen producing 7.2 g of water?

    asked by Ron
  145. english

    Hawthorne's greatest work is generally considered to be

    asked by Michada
  146. eonomics

    Unions limit the operation of: A. democracy B. the justice system C. market forces D. the military

    asked by Mitchel
  147. economics

    Workers with higher amounts of human capital tend to: A. demand less benefits B. earn higher wages C. have fewer jobs D. earn lower wages

    asked by Mitchel
  148. Geometry 1

    Which of the following does not always bisect at least one side

    asked by Tamesha
  149. Physics

    Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2, as shown. If M1 = 1.06 kg, M2 = 3.80 kg, and F = 4.85 N, find the size of the contact force between the two blocks. If instead an equal but oppositely directed force

    asked by Kayleigh
  150. Maths

    How many rational numbers in the interval (0,1) , when expressed in lowest terms, have denominators less than or equal to 10

    asked by Tony
  151. Math, Please help!

    I'm having a hard time in math, and every time I start my test my eyes glaze over. Can anyone please help me out? (9m+6)+(-5m-6) (3r^2+7r+1)+(4r^2-8r-2) (6h+1)-(9h+4) (-7w^2-2w-1)-(-5w^2 +3w-2)

    asked by Cait
  152. economics

    An individual who owns a share of a corporation and is entitled to part of its profits is the: A. director B. officer C. president D. stockholder

    asked by Mitchel
  153. Government

    What are the 5 types of congressional power and give an example or each. my teacher said something about expressed, implied, denied, legislative, and non legislative but i am kinda confused on the examples.

    asked by Rebekah
  154. math

    Kathy DesMaris has a rectangular field that is 644 feet wide. One portion of the field is 5x feet long. The other portion of the field is 8y long. Use the distributive property to find an expression for the area of this field.

    asked by NEU
  155. psychology HW CHECK PLEASE

    can you check this for me : For those who graduate from high school, get a full-time job, and marry before they have their first child, the probability that they will be poor is 2%. But, if those things are absent, 76% will be poor.” a) What is the

    asked by vanessa
  156. physics

    Root x +x square=y

    asked by azad
  157. Grammar (Ms. Sue)

    Rewrite the sentences below that contain errors in pronoun-antecedent agreement. If a sentence is correct, write "correct." 1. Max is learning skills that you need to be an astronaut. 2. Some of my friends wrote to NASA in his spare time to find out how to

    asked by Anonymous
  158. French

    Just a quick question... how do you do futur proche in French?

    asked by Erika
  159. physics

    Root x +x square=y

    asked by azad
  160. Math

    9. 5/6 divided by 1/3=2 1/2 11. 1/2 divided by 3/5= 5/6 13. 7/12 divided by 5/6=7/10 15. 3/8 divided by 9= 3 3/8 17. 2/5 divided by 4/7=7/10 19. 6/7 divided by 3/11= 3 1/7 21. 5/6 divided by 5/12=2 23. 7/9 divided by 1/7= 5 4/9 25. 3/5 divided by

    asked by Jerald
  161. Math

    Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? Answer: 1306.25 4. Using your answer to the question above, what is the net dollar

    asked by Ann
  162. Pre-calculus...

    How do you remove the 2 pi in this problem? csc 19pi/4 remove 2 pi -> (8pi/4) -> 11pi/4 -> 3pi/4 >> i really don't know how do they the 2 pi twice so it would become 8pi. Please help me!

    asked by Isis
  163. World Geography

    The Prime Meridian and other imaginary north-south lines measure

    asked by Anonymous
  164. economics

    Which of the following is an example of market size affecting demand? A. Restaurant visits drop after a causes a city to be evacuated. B. A computer chip maker moves to a town and hires hundreds. C. After a team wins the World Series, it becomes a fad to

    asked by Mitchel
  165. Chemistry

    Is electroplating an industrial electrochemical process? What would be an industrial electrochemical process?? electric generator or electrolysis?

    asked by scilover
  166. Physics

    How long (in seconds) would it take a sound to travel underwater across the San Francisco Bay at its widest point of 19 000 meters?

    asked by Oner
  167. inorganic chemistry

    silt is an example of ........ Hydride

    asked by isaac
  168. physics

    An 80 kg crate was slowed to a stop when a frictional force of 160 Newtons was applied. It was originally traveling at 5.5 m/s. What distance did the box travel before it came to a stop? m. Round to first decimal.

    asked by blah
  169. economics

    Explain the economic logic behind Opec's decision to reduce output

    asked by karabo
  170. spanish

    como te llamas

    asked by A
  171. Chemistry

    Oxygen gas and hydrogen gas are used to synthesize dihydrogen monoxide. A lab group utilizes 1.00 liters of oxygen and 1.01 liters of hydrogen to create 0.75 grams of product. How many milliliters of product should the group have expected to get? What will

    asked by Nick
  172. economics

    Which is most likely to have an inelastic demand? A. an expensive sports car B. experimental cosmetic surgery C. organic fruits and vegetables D. an effective cancer-fighting drug

    asked by Mitch
  173. Stats

    The census figures show that the average income for a family in a rural region is approximately $34,860 per year. A random sample has a mean income of $33,566 per year, with a standard deviation of $1,245. At a sig. level of .0.01 is there enough evidence

    asked by Jessica
  174. Lang Arts - HELP!

    "The magic might die by the first of September, but now in late June there was still plenty of magic, and shoes like these could jump over trees and rivers and houses. And if you wanted, they could jump over fences and sidewalks and dogs." 1. What effect

    asked by Nikki
  175. 7th grade math help

    Hi I need help on how many outcomes are possible for these? For breakfast choices possibilities. I tried, but I feel like I am not getting it. Coffee (c) orange Juice (o) scarmabled (s) hard boiled (h) poached (p) bagel (b) toast (t) Please help??

    asked by Mayla
  176. Math

    5. 1/3 divided by 2/5=5/6 6. 1/9 divided by 1/2=2/9 7. 2/3 divided by 1/4=2 2/3 8. 1/2 divided by 3/4=2/3 9. 4/5 divided by 2=2/5 10. 4/5 divided by 1/10=8 11. 5/12 divided by 5/6=1/2 12. 9/10 divided by 3= 3/10

    asked by Jerald
  177. English

    I urgently need someone to check this summary of O. Wilde's The nightingale and the rose. Thank you very much in advance. 1) Oscar Wilde's work titled "The Nightingale and the Rose" is a fairytale. Wilde begins the fairytale with a central character who is

    asked by John
  178. social studies

    Are there any websites which show whether or not Taiwan will be able to achieve complete independence from China?

    asked by Anonymous
  179. accounting 2

    Peason began 20xx with 30,000 $1 common shares issued and outstanding.paid in captial in excess of par was $25,000 and retained earnings were $175,000 net income for 20xx was $22,000.

    asked by charlene
  180. algebra 1

    Circle the most appropriate description. 27.A city planning commitee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. Random Sample,systematic sample,self-selected sample, convenience sample, bipartisan

    asked by janet
  181. programming

    a) Define a Cat class. A Cat has name. Define two constructors, one with no argument and another with the name as its argument. Initialize the name to a default value Unknown for the zero-argument constructor. b) Create a main class. In main class, create

    asked by michin
  182. Grammar (Ms. Sue)

    Rewrite the sentences below that contain errors in pronoun-antecedent agreement. If a sentence is correct, write "correct." 1. Some of my friends wrote to NASA in their spare time to find out how to become an astronaut. 2. Either civilians or military

    asked by Anonymous
  183. business math

    three of every seven sales tranactions at dallar discount are credit what percent of the tranaction are not credit sales?(round to nearest tenth)

    asked by artyst
  184. probability

    a spinner has 5 sections and is spun 40 times. it lands on 2 six times. What is probability of spinning a 2?

    asked by Sam
  185. Math

    This is about variables. The problem is d/2.5 - 3.4 = 4.6. What are the steps in finding out what the d is?

    asked by Makayla
  186. math calculus

    The demand function for a product is given by p = 10,000(1 − (5/5 + e^−0.001x)) where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500.(Round your answers to

    asked by harold
  187. Math 208

    nico is saving money for his college education. He invests some money at 6%, and $1400 less that that amount at 5%. The investments produced a total of $172 interest in 1 yr. how much did he invest at each rate?

    asked by Jackie
  188. math calculus (please help me)

    Solve for t. (Round your answer to two decimal places. (2 − (2.479/35))^7t= 29

    asked by steven
  189. Math - PLEASE HELP

    Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =

    asked by mark
  190. english

    I urgently need help on talking about the role of fear in Frankentein and The Lords of Discipline. I have to do a presentation where I talk about is fear in these works and need a lot of information. Please help!

    asked by dilshad
  191. Math

    13. 3/4 divided by 7/12= 1 2/7 14. 9/10 divided by 9=1/10 15. 2/3 divided by 5/8=1 1/15 16. 4 divided by 7/9= 5 1/7

    asked by Jerald
  192. Algebra

    A triangle has an area of 60 in^2. Its base is 10 inches and its height is √x inches. What is the value of x? What is the height of the triangle? Please show all work that you use to determine your answer. (Hint: The formula for the area of a triangle is

    asked by sarah
  193. CHEM HELP PLEASE

    1- the vinegar soltion sold in the store is about 5% acetic acid. Assuming that the solution has a density of 1.01 g/mL, calculate the pH of vinegar.

    asked by JOJO
  194. CHEM-PLEASE HELP

    1- Calculate the equilibrium concentration for H+, HSO4- and SO4^2- , given a .150M H2SO4 solution. the Ka for HSO4- is 1.20*10^-2

    asked by JOJO
  195. computer literacy

    Is email dead for teenagers? Explain.

    asked by shashanna
  196. economics

    A producer would have an added incentive to enter a market if the: A. prices for microwave oven sharply decreased. B. price for tennis shoes sharply increased C. supply of apples increased, causing a surplus D. supply of cell phones satisfied consumer

    asked by Mitch
  197. ashford unversity

    Which of the following is true regarding an SEP?

    asked by sonya
  198. Grammar (Writeacher)(Ms. Sue)

    Revise each sentence below to correct an error in pronoun-antecedent agreement. Underline the pronoun that you have substituted and its antecedent. 1. A police officer is highly trained to perform their duties. 2. Neither Caroline nor Jessica has decided

    asked by Anonymous
  199. psych hw help

    can you check this for me : For those who graduate from high school, get a full-time job, and marry before they have their first child, the probability that they will be poor is 2%. But, if those things are absent, 76% will be poor.” a) What is the

    asked by vanessa
  200. Science

    A 15 kg, 1m wide door which has frictionless hinges is closed but unlocked. A 400 g ball hits the exact middle of the door at a velocity of 35 m/s and bounces off elastically, thereby causing the door to slowly swing open. How long in seconds does it take

    asked by Abhishek Ranjan
  201. Pre-algebra

    Sara is 24 years younger than Joe. Six years ago she was half as old as he was. How old is he now?

    asked by Dom
  202. 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

    asked by Abhishek Ranjan
  203. maths

    what are the applications of maths in our daily life

    asked by Gagandeep
  204. math

    the americans with disabilities act requires wheelchair ramps no greater than 1 over 12 or 1/12 .whta is the minimum horizontal length 2-foot-high ramp can have?

    asked by mary
  205. Math- Precalculus

    Write the expression as the sine, cosine, tangent of an angle (in radians.) (tan(pi/5)-tan(pi/3))/(1+tan(pi/5)tan(pi/3))

    asked by Maddy
  206. PSY210 Psychological Statistics

    Simply reporting measures of central tendency or measures of variability will not tell the whole story. Using the following information, what else does a psychologist need to know or think about when interpreting this information? A school psychologist

    asked by Scrowe
  207. Math

    A fence is 20 ft long. it has posts at each end and at every four feet along its length. how many fence posts are there? Draw a picture.

    asked by Derek
  208. Algebra

    An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = -4.9 t^2 + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How

    asked by Amy
  209. chem

    determine the mass (g) of SO2 that is produced byt the reaction of 15g of CS2 according to the following equation: CS2 + 3O2 = CO2 + 2SO2

    asked by jonathan
  210. Math

    It takes pipe A 14 days to fill the fish pond. It takes pipe B 18 days to fill the same pond. Find out how pond it takes both pipes working together to fill the pond

    asked by Erika
  211. Dear Jiskha

    Dear Jiskha, I really need help with some things and I am able to help other people with things but every time I try to make a post, it just goes to the current questions page. I believe it is because I was banned again. Please can I have one more chance?

    asked by This Girl
  212. Pre-Calculus

    A surveyor measures the distance between buildings X and Y as 200 feet. The angle of elevation from the base of X to the top of Y is 25 degrees. What is the height of building Y?

    asked by Ericka
  213. Math

    lee and his family are planning a hiking trip on the Appalachian trail. they are packing food in 2lb bundles. how many bundles can they make with 36 lb of food? write a number sentence to help you solve this problem.

    asked by Vivian
  214. 7th grade math

    Hello there! I am totally confused what does x = 4x+3+2x= 54/9 Thank you ;) & please help me!?!

    asked by Abby
  215. Probability

    Andrew has ten different two-player board games on his shelf. He has them numbered 1 through 10. When he plays the game i against Diego, he has a i^2/100 chance of winning. If Andrew rolls a fair ten-sided die to determine which game to play, the

    asked by Andrew