Questions Asked on
March 25, 2013

  1. Chemistry

    Tungsten metal can be produced by the reaction of tungsten oxide powder (WO3) with hydrogen gas (H2) in a reactor heated to 800oC. The by-product of the reaction is water vapor (H2O). The reactor is charged with 128.0 kg of WO3 and 41.0 kg of H2. Assume

    asked by Chemq
  2. calculus

    The measurement of the radius of a circle is found to be 14 inches, with a possible error of 1/4 inch. Use differentials to approximate the possible error and the percentage error in computing the area of a circle.

    asked by shaljz
  3. account

    For both cases, show what each firm would report in its annual statement of profit and loss and other comprehensive income under the: a)Cash Basis b)Accrual Basis CASE 1 During 2012 Gangnam Marketing earned revenues of $500,000 on account. Gangnam

    asked by ifi
  4. chemistry

    An unknown weak acid with a concentration of 0.32 M was found to have a pH of 2.7. Using the table of dissociation constants (Ka) below, determine what the likely identity of the acid is

    asked by Anonymous
  5. chemistry

    Aluminum fluoride, AlF3, exists as a gas at 1000 degrees C. (a) The Al-F bond energy is observed to be 659 kJ/mole. Calculate the Al-Al bond energy if the F-F bond energy 154.8 kJ/mol. Calculate the % ionic character of the Al-F bond.

    asked by Chemq
  6. chemistry

    An electron of wavelength 1.74*10-10m strikes an atom of ionized helium (He+). What is the wavelength (m) of the light corresponding to the line in the emission spectrum with the smallest energy transition?

    asked by James
  7. chemistry

    An electron of wavelength 1.74*10-10m strikes an atom of ionized helium (He+). What is the wavelength (m) of the light corresponding to the line in the emission spectrum with the smallest energy transition?

    asked by James
  8. Trigonometry

    Every point (x,y) on the curve y=log(3x)/log2 is transferred to a new point by the following translation (x′,y′)=(x−m,y−n), where m and n are integers. The set of (x′,y′) form the curve y=log(12x−96)/log2. What is the value of m+n? Details

    asked by stranger
  9. home work

    The ball is throw in to the air . If its height in feet is given by - 16t^2 + 64t, at what time t will the ball reach a height of 64 feet?

    asked by Steven
  10. Chemistry

    What is the bond order of BN-

    asked by Chemq
  11. Chemistry

    A gas in a discharge tube consists entirely of ions of the same element, of the same charge. Each ion has only one remaining electron. The voltage between the electrodes of the gas discharge tube is increased from zero. Electrons are accelerated across the

    asked by Chemq
  12. Physics

    A box weighing 8.0 kg has to be moved from the floor to the back of the truck, using a ramp 2.5 m long inclined at 30°. The worker gives the box a push so that it has initial velocity of 5.0 m/s. Unfortunately, the friction is more than he estimated and

    asked by Peter
  13. math

    a spherical hailstone is losing mass by melting uniformly over its surface as it falls. At a certain time, its radius is 2 cm and its volume is decreasing at the rate of o.1 cm^3/s. How fast is the radius decreasing at the time?

    asked by Cathy
  14. maths

    Amanda is organizing a dinner party for a group of friends. He has prepared 45 chicken dumplings and 75 shrimp wantons. He manages to split the chicken dumplings and shrimp wantons evenly amongst everyone, so that everyone got the same number of chicken

    asked by Ms.SUE PLEASE HELP!!!!
  15. algebra!...

    f(x) is a polynomial with degree equal to 5, and one of its roots equal to 15. Let g(x)=f(x)+25. What is the remainder when g(x) is divided by x−15?

    asked by i need help from anyone!
  16. GEOmetry!!.....

    ABCD is a trapezoid with AB

    asked by i need help from anyone!
  17. GEOMetry(TRIANGLE)

    ABC is an isosceles triangle where AB=AC and BC=60. D is a point on BC such that the perpendicular distance from D to AB and AC is 16 and 32, respectively. What is the length of AB?

    asked by i need help from anyone!
  18. GEOMETRY(CIRCLE)

    Three circles with different radii have their centers on a line. The two smaller circles are inside the largest circle, and each circle is tangent to the other two. The radius of the largest circle is 10 meters. Together the area of the two smaller circles

    asked by i need help from anyone!
  19. probability

    6 male students and 3 female students sit around a round table. What is the probability that no 2 female students sit beside each other?

    asked by Devin
  20. MATHS

    in a class of 60 students,the number of students who pass biology is 6 more than the number who pass chemistry.every student passed at least one of the two subject.how many pass in only biology.how many pass in only chemistry.

    asked by TANAKA WISDOM
  21. chemistry

    N2(g)+H2(g)-NH3(g) Calculate the volume of ammonia gas produced when20cm3 of nitrogen gas was reacted with an excess of hydrogen gas

    asked by kate
  22. life oriantatiom

    identify and describe 3 environmental health hazards that causes ill health, crises and or disaster within our community or any other community within SA and globally.

    asked by modjadji
  23. Physics

    Motion is a change in an objects POSITION A change in that (position) over time is?

    asked by Ariel
  24. physics practical investigation

    Plan,design and conduct an investion to find out whether the amount of heat(gas) produced will depend on an increase on the concentration of Hcl when Hcl reacts with an excess zn..guidance/hint...you may investigate either the amount of heat produced or

    asked by Jossie
  25. physics practical investigation

    design and conduct an investion to find out whether the amount of heat(gas) produced will depend on an increase on the concentration of Hcl when Hcl reacts with an excess zn..guidance/hint...you may investigate either the amount of heat produced or the

    asked by Jossie
  26. Maths Probability

    When writing a math expression, any time there is an open bracket "(", it is eventually followed by a closed bracket ")". When we have a complicated expression, there may be several brackets nested amongst each other, such as in the expression

    asked by stranger
  27. physics practical investigation

    design and conduct an investion to find out whether the amount of heat(gas) produced will depend on an increase on the concentration of Hcl when Hcl reacts with an excess zn..guidance/hint...you may investigate either the amount of heat produced or the

    asked by Jossie
  28. physics practical investigation

    design and conduct an investion to find out whether the amount of heat(gas) produced will depend on an increase on the concentration of Hcl when Hcl reacts with an excess zn.hint...you may investigate either the amount of heat produced or the amount of gas

    asked by Jossie
  29. statistics

    Are Chicken based dishes more populat than Pizza to a level which is statistically significant at the 95% confidence level? What figures do i have to look at to work it out? Thanks

    asked by Lauren
  30. physics practical investigation

    design and conduct an investion to find out whether the amount of heat produced will depend on increase on concentration of Hcl when Hcl reacts with an excess zn.hint...you may investigate either the amount of heat produced or the amount of gas

    asked by Jossie
  31. physics practical investigation

    design and conduct an investion to find out whether the amount of heat produced will depend on increase on concentration of Hcl when Hcl reacts with an excess zn.hint...you may investigate either the amount of heat produced or the amount of gas

    asked by Jossie
  32. physics practical investigation

    Plan,design and conduct an investion to find out whether the amount of heat produced will depend on increase on concentration of Hcl when Hcl reacts with an excess zn.you may investigate either the amount of heat produced or the amount of gas produced(make

    asked by Jossie
  33. physics practical investigation

    Plan,design and conduct an investion to find out whether the amount of heat produced will depend on increase on concentration of Hcl when Hcl reacts with an excess zn.

    asked by Jossie
  34. physics

    a weightless plank of unknown length has one concrete block at the left end,another at the center, two at the right end.if its center of gravity is 2.5m,what is the length of the plank?

    asked by Anonymous
  35. Physics

    A truck driver travels 55 km in 1 hour. He then drives a speed of 35km/hr for 2 hrs. Next, he drives 175 km in 3 hrs. What was his average speed? Should i add up the total distance and total time taken then solve?

    asked by Ariel
  36. physics

    a weightless plank of unknown length has one concrete block at the left end,another at the center, two at the right end.if its center of gravity is 2.5m,what is the length of the plank?

    asked by Anonymous
  37. phy

    A very thin hollow conducting sphere has a radius of R=0.12 m. The center of the sphere is at S. A charge of q=7×10−6 C is present at point P which is located d=0.09 m from S. Assume that this charge stays at this position (thus it cannot move). We draw

    asked by Evans
  38. social studies

    What is the total capacitance of capacitors connected in series, C1=444F, C2=621F

    asked by Trevor
  39. Physics

    A friend tells u he is 30 m from the fountain in the middle of the city. Explain why u cant identify his position from this description. Is it correct to say : cz theres no direction and i don't know where os the exact position of the fountain

    asked by Ariel
  40. Science

    Please help me with matching the stages of the meiosis to its proper description. Sentences: 1. Members of each homologous pair separate from each other (chromatids) still remain together). 2. Homologous chromosomes pair up with each other and chromosomes

    asked by Jason
  41. Algebra

    Need help finding composition of functions. I am doing something wrong continue to get wrong answer f(x)=x+6/x+5, g(x) = 2x-7. Find (fog)(x)

    asked by Jackie
  42. Applied maths-mechanics

    A block of mass 300kg is just pulled along rough horizontal ground by two equal force inclined at 30 degrees to the line of motion.if the coefficient of friction is 0.6.find the value of P

    asked by Mathapelo
  43. English

    1. Kate is listening to music with headsets on a smart phone. 2. Kate is listening to music with headphones connected to a smart phone. 3. Kate is listening to music wearing headphone attached to a smart phone. (Are the sentences grammatical? Would you

    asked by rfvv
  44. English

    1. The students are playing soccer against the teachers. (What is the part of speech of 'against the teachers'? Is it an adverbial phrase or an adjective phrase? Does 'against the teachers' modify 'soccer'?) 2. What's your favorite place at school? - It's

    asked by rfvv
  45. math

    the new playground at middeldae school will be enclosed by a fence. The playgroundnd will be rectangualar and will have an area of 225 yd. The number of yards on each side will be a whole number. What is the least amount of fencing that could be required

    asked by Anonymous
  46. government

    I am doing a research paper on senator Debbie Stabenow and I cant find some information. What are her years of experience, committee membership and party duties? also how is she viewed by different special interst groups? thanks!

    asked by hannah
  47. math

    I need help soving this problem. Factor the trinomial completely. 4x^3-10x^2-50x I also want to know if I soved this problem correctly? Factor the trinomial 9s^2+3s-20 my answer is (3s-4)(3s+5)

    asked by Michael
  48. Chemistry

    At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) At this temperature, 0.300 mol of H2 and 0.300 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present at equilibrium?

    asked by Anonymous
  49. Chemistry

    Calculate the volume of 0.3MHCL used to neutralise NaOH solution

    asked by Chris
  50. Chemistry

    Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is: S2(g)+C(s) CS2(g) Kc=9.40 at 900K How many grams of CS2(g) can be prepared by heating 16.8 moles of S2(g) with excess carbon in a 9.80 L reaction vessel held at 900 K

    asked by Anonymous
  51. Math

    Suppose you had d dollies in your bank account.you spent $12 but have at least $51 left.how much money did you have initially?write and solve an inequality that represents this situation.

    asked by Lisa
  52. math

    At the beginning of a basketball game, the referee tosses the ball vertically into the air. Its height, h, in feet after t seconds is given by h(t) = -16t2 + 24t +5. During what time interval (to the nearest tenth of a second) is the height of the ball

    asked by Jon
  53. Physics

    Nora rides a bicycle for 5 min on a curvy road at a constant speeed of 10 m/s . Describe noras ride in terms of position, velocity, and acceleration, compare the distance she rides and her displacement.

    asked by Ariel
  54. Economics

    I need to write an essay titled " How are we all economists?" and I was wondering if you guys could give me some ideas on how to start it. Bulletpoints would be the most helpful.

    asked by Allyson
  55. chem

    What does this species represent a transition state for? CH2CH3IH20+---C---Br-/\H H

    asked by anubis
  56. chem

    What does this species represent a transition state for? CH2CH3IH20+---C---Br-/\H H

    asked by anubis
  57. chem

    What does this species represent a transition state for? CH2CH3IH20+---C---Br-/\H Hreaction of 1-propanol with HBr.reaction of 1-bromopropane with OH-.addition of HOBr to 1-propene.addition of HBr to propene with peroxides.

    asked by anubis
  58. Science

    All forms of energy can do work. A.true B.false I think this is true..?

    asked by Cassie
  59. Physics/math

    Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of

    asked by Jack
  60. Physics/math

    Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of

    asked by Jack
  61. Circles / Square

    Alicia has a flat platter shaped like a square with a semicircle of diameter 10 inches on each edge. What is the number of inches in the side length of the smallest square that can contain the platter (which contains the square with the semicircles on each

    asked by Knights
  62. zoology

    4. In applying cladistic analysis to construct a phylogeny of the animal kingdom, why would the presence of flagella be a poor choice of a characteristic for the grouping the phyla into clades?

    asked by victor
  63. Physics

    A girl starts from rest and reaches a walking speed of 1.4 m/s in 3.0 s. She walks at this speed for 6.0 s. Girl then slows down and comes to a stop during a 10.0 -s period. What was her acceleration during each of the 3 time periods? Her acdeleration

    asked by Ariel
  64. us history

    How much did Coney Island pay to have the escalator?

    asked by Sasha
  65. Applied Calc

    What is the marginal average cost function?

    asked by Jacob
  66. ap calculas

    derivative of (2x^3+5)cos2x^5

    asked by Rebecca
  67. Chemistry

    A solution is prepared by dissolving 0.12 mol of acetic acid and 0.12 mol of ammonium chloride in enough water to make 1.0 L of solution. Find the concentration of ammonia in the solution.

    asked by Emma
  68. Physics

    A dockworker loading crates on a ship finds that a 22-kg crate, initially at rest on a horizontal surface, requires a 76-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 59 N is required to keep it moving

    asked by Sally
  69. physics angular velocity

    A 20g steel weight is placed on the edge of 1 30cm diameter plastic disk. The coefficient of static friction between the steel weight and plastic disk is 0.4. At what angular velocity will the weight slide off the disk?

    asked by Kristy
  70. chemistry

    In Flask A, you reacted 5.10 g Mg with 0.447 mol HCl. In Flask B, you reacted 24.21 g Mg with 0.998 mol HCl. Which ballon will inflate the most?

    asked by chrissy
  71. chem

    Consider the titration of 30.0 mL of 0.050 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added. (The Kb for NH3 is 1.8e-05.) (a) 0 mL . (b) 25.0 mL . (c) 59.0 mL . (d) 60.0 mL (e) 63.0 mL (f) 67.5 mL

    asked by hannah
  72. College Gen. Math

    There are 6 times as many dimes as quarters, and 6 times more nickels than quarters. If you have $5.70, how much money do you have in quarters?

    asked by Lorie
  73. math

    what are monthly payments on $100,000.00 at 1% over 5 years

    asked by Anonymous
  74. calculus

    Find an equation of the tangent line to the curve at the given point. y^2=x^3 (2-x) (1,1)

    asked by Kelly
  75. simple MATHS!!!

    What is the x-intercept of the line y=2x−38?

    asked by i need help from anyone!
  76. ap calculas

    derivative of (-x^3+3)(3x+2)^3

    asked by Rebecca
  77. PHYsics......

    A race car is on a straight track. The race car accelerates from rest, covering 100 m in 5 seconds. What is the acceleration of the race car in m/s^2?

    asked by i need help from anyone!
  78. SIMPLE pHYsics....

    Two positive point charges are placed on the x-axis. One, of magnitude 4Q, is placed at the origin. The other, of magnitude Q is placed at x=3 m. Neither charge is able to move. Where on the x-axis in meters can I place a third positive point charge such

    asked by i need help from anyone!
  79. chemistry

    how much heat is required to vaporize 343g of liquid ethanol at its boiling point?

    asked by tanya
  80. physics....need help!

    An 80 kg man is riding in an elevator from the first floor to the 34th floor. The elevator and man are moving at a constant speed. What is the net force on the man in Newtons.

    asked by i need help from anyone!
  81. Product of Roots of Sums of Products of Difference

    What is the product of all roots to the equation ++(x−1)(x−2)(x−3)+(x−2)(x−3)(x−4)(x−3)(x−4)(x−5)+(x−4)(x−5)(x−6)(x−5)(x−6)(x−7)+(x−6)(x−7)(x−8)=0?

    asked by i need help from anyone!
  82. physics

    Light with a frequency of 4.32 × 1015 Hz strikes a metal surface and ejects electrons that have a maximum kinetic energy of 5.8 eV. What is the work function (in eV) of the metal?

    asked by John
  83. Math

    MIKA HAS PARTS OF TWO PIZZAS LEFT FROM HER PARTY. IF THE LEFTOVER SLICES OF PIZZA ARE COMBINED, WHAT FRACTION OF PIZZA IS LEFT?

    asked by Alamara
  84. Soc. Studies

    Which of the following women wrote a book which inspired many early feminists? A.Betty Friedan B.Gloria Steinem C.Phyllis Shafly D.Jeannette Rankins I think this is A...?

    asked by Cassie
  85. Biochemistry

    In plants, it can be assumed that NADPH like NADH is energetically equivalent to 2.5 ATP. Calculate the number of ATP and ATP equivalents that are needed to synthesize one molecule 0f glucose-6-phosphate from CO2 and photosynthetically produced ATP and

    asked by brad
  86. organic chem

    I prepared triphenylmethanol by a grignard reaction. At the end you add petroleum ether to the mixture and heat it up. It stayed a liquid and got dark and oily but never solidified. What went wrong?

    asked by emily
  87. organic chemistry

    what type of feature will be observd in the ei mass spectrum of chlorobenzene?

    asked by kay
  88. Calculus

    F(x) log_3 (1-5x) F'(x)=

    asked by Amy
  89. CST GEOMETRY

    a tree is situated on level ground from a point 135 feet from the base of the tree the measure of the angle of elevation from the ground to the top of the tree is 43 degrees which is the height of the tree to the nearest foot?

    asked by carolina
  90. psychology

    It's for a psychology experiment, i'm comparing the reaction times of people to the number of hours of sleep they get per night on average. Please give me some ideas on how to carry out this experiment. For example, like what will be a good way to select

    asked by Mina
  91. spanish

    14.pagar dinero cada mes por vivir en un lugar? I have tried many answers will not accept them. It is a form of rent alquilar my book shows el alquiler

    asked by chichi
  92. chemistry

    a 23.74 mL volume of .0981 M NaOH was used to titrate 25 mL of a weak monoprotic acid solution to the stoichiometric point. determine the molar concentration of the weak acid solution. express in correct sig figs.

    asked by Anonymous
  93. geometry

    can someone please show me the answer for this problem ? a tree is situated on level ground from a point 135 feet from the base of the tree the measure of the angle of elevation from the ground to the top of the tree is 43 degrees which is the height of

    asked by ,,,,,
  94. math

    graph the absolute value function and state its domain and range y=|x-1|+2

    asked by sw
  95. calculus

    If f(3) =4 g(3)=2 f'(3)=6 and g'(3)=5 find the following number (f+g)' (3)

    asked by Tre
  96. College algebra

    Form a polynomial f(x) with real coefficents having the given degree and zeros degree 5; zeros: 5; -i; -9 +i f(x)=a

    asked by Jenn
  97. geometry

    A. Derive the distance formula (d) shown below for points A = (x1, y1) and B = (x2, y2). 2 2 1 2 2 1 d = (x − x ) + ( y − y ) Note: Look for an application of the Pythagorean theorem where the red line, segment AB, is the hypotenuse of a right

    asked by denise
  98. Science

    What is Earth's surface (sea level)? Its pressure is 14.7 psi. That is what is the number of ft.

    asked by Anonymous
  99. Physics

    An á-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.16 106 V and then enters a uniform magnetic field whose magnitude is 3.00 T. The á-particle moves

    asked by Don
  100. Algebra 2

    Simplify (2.3)^5 log base 2.3^1

    asked by Anonymous
  101. Physics

    A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field

    asked by Anonymous
  102. Physics

    A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field

    asked by Anonymous
  103. University, Physics

    Derive the error in equation: T1/2 = 1n(2)/lambda solve for T

    asked by Kenna
  104. english

    Below is a list of phrases giving reasons to support a topic sentence.Use the list to complete the following unfinished paragraph. Type the body of the paragraph in the text box below. Reasons *Excellent news coverage: sports events; club news;

    asked by Carlos
  105. english

    Below is a list of facts and statistics that can be used to support a topic sentence. Use the list to complete the following unfinished paragraph given below. It already has a topic sentence. Facts and Statistics: 980,299 registered purebred dogs; does not

    asked by Carlos
  106. statistics

    The average amount spent at a fast-food restaurant in California was $3.30, with a standard deviation of $.40. Yet in Georgia, the average amount spent at a fast-food restaurant was $3.25, with a standard deviation of $.10. What do these statistics tell

    asked by Donna
  107. english

    Choose an essay or a short story to read. Then answer the following questions in the space provided. 10.What is the title of the story essay? 11.Who wrote it? 12.Whom is the story about? (Identify the main characters [or, if an essay, the subject

    asked by Carlos
  108. Marketing

    Assume that previous fast-food research has shown that 80 percent of the consumers like curly French fries. The researcher wishes to have a standard error 6 percent or less and be 95 percent confident of an estimate to be made about curly French fry

    asked by Donna
  109. physics

    A 0.7 kg object is at rest. A 6.5 N force to the right acts on the object during a time interval of 3.7 seconds. What is the velocity of the object at the end of this interval?

    asked by Sam
  110. management

    young innovative or high tech firms often adopt the strategy of ignoring history of attempting to do something radically new.in what ways will this strategy help them?in what ways will this strategy hinder them/

    asked by sam
  111. Chemistry

    If a sample of gas occupies 2.1 ml at a pressure of 896 torr, what volume (ml) will it occupy at a pressure of 316.8 torr. I really need an answer, but also please show me how to work this problem.

    asked by Linzy
  112. Chemistry

    If a gas has a pressure of 3.0 atm at 12.8°C, what is its pressure (atm) at 25.9°C?

    asked by Linzy
  113. ihstory

    During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Union Party running William Lemke. B. Liberty League running Father Coughlin. C. Union Party running Gerald K. Smith. D.

    asked by sergey
  114. Chemistry

    A 3.0 L volume of methane gas is cooled from 59.4°C to 30.0°C. If the pressure remains constant, what is the final volume (L)?

    asked by Linzy
  115. history

    During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Union Party running William Lemke. B. Liberty League running Father Coughlin. C. Union Party running Gerald K. Smith. D.

    asked by sergey
  116. Chemistry

    A small cylinder of compressed gas has a volume of 396.6 ml and contains 47.9 g of CO2 at 25°C. What is the pressure (atm) inside the cylinder?

    asked by Linzy
  117. Chemistry

    A sample of gas with a volume of 14.9 liters at 2.6 atmospheres pressure and a temperature of 25°C is allowed to expand to a volume of 29.3 liters at a temperature of 15°C. What is the final pressure (atm)atof the gas?

    asked by Linzy
  118. Chemistry

    A sample of gas has a volume of 8.1 liters at 1 atmosphere pressure and 203.0 K. What is its volume (liters) at STP?

    asked by Linzy
  119. Chemistry

    A balloon from the local toy store has a volume of 6.6 liters and an internal pressure of 2.4 atmospheres at 22°C. How many moles of gas does it contain?

    asked by Linzy
  120. math

    simplify: -2x + (9x - 4)

    asked by fran
  121. Chemistry

    Your space ship has docked at a space station above Mars. The temperature inside the space station is a carefully controlled 24oC at a pressure of 689 mm Hg. A balloon with a volume of 426 ml drifts into the airlock where the temperature is -88oC and the

    asked by Linzy
  122. Calculus

    The monthly demand function for a product sold by a monopoly is p = 3750 − 1/3x^2 dollars, and the average cost is C = 1000 + 70x + 3x^2 dollars. Production is limited to 1000 units and x is in hundreds of units. (a) Find the quantity that will give

    asked by Sarah
  123. Physics

    A wire has a length of 5.40 10-2 m and is used to make a circular coil of one turn. There is a current of 2.30 A in the wire. In the presence of a 3.80-T magnetic field, what is the maximum torque that this coil can experience?

    asked by Don
  124. Physics

    A wire has a length of 5.40 10-2 m and is used to make a circular coil of one turn. There is a current of 2.30 A in the wire. In the presence of a 3.80-T magnetic field, what is the maximum torque that this coil can experience?

    asked by Don
  125. Pre-Algebra

    Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets of values. My Answer: B) two sets of values.

    asked by Wendy
  126. Physics

    The coil in the figure below contains 425 turns and has an area per turn of 3.00 10-3 m2. The magnetic field is 0.21 T, and the current in the coil is 0.27 A. A brake shoe is pressed perpendicularly against the shaft to keep the coil from turning. The

    asked by Anonymous
  127. Calculus

    The monthly demand function for a product sold by a monopoly is p = 3750 − 1/3x^2 dollars, and the average cost is C = 1000 + 70x + 3x^2 dollars. Production is limited to 1000 units and x is in hundreds of units. (a) Find the quantity that will give

    asked by Sarah
  128. Pre-Algebra

    Can U Just Check My Answer Please! Thank You Guys :D Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets

    asked by Sammy
  129. Pre-Algebra

    Can U Just Check My Answer Please! Thank You Guys :D Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets

    asked by Sammy
  130. science

    What caused by matter that has an electric charge?

    asked by ttuuffyy
  131. math

    Anneke's science class measured 10 inches of rainfall during the month of May what was the average rainfall per day?(Round your answer to the nearest hundredth.) Please answer and explain.

    asked by Anonymous
  132. Science help

    Which of the following technologies is a result of space research and development? A.improved pacemakers B. equipment to allow police to change traffic signals C. cochlear implants to help deaf people hear D. all of the above

    asked by charloette
  133. fundamental of management

    young innovative or high tech firms often adopt the strategy of ignoring history of attempting to do something radically new.in what ways will this strategy help them?in what ways will this strategy hinder them/

    asked by sam
  134. Physics

    A 3.6 kg ball strikes a wall with a velocity of 9.3 m/s. The ball bounces off with a velocity of 7.9 m/s in the opposite direction. If the ball is in contact with the wall for 0.4 seconds, what is the constant force exerted on the ball by the wall?

    asked by Sam
  135. math please help

    Anneke's science class measured 10 inches of rainfall during the month of May what was the average rainfall per day?(Round your answer to the nearest hundredth.) Please answer and explain.

    asked by Anonymous
  136. German

    Decide if the following sentence is grammatically CORRECT or INCORRECT. Wann darf er wieder aufstehen?

    asked by bubbie
  137. Statistics

    4. The data below are from an independent-measures experiment comparing three different treatment conditions. Treat. 1 Treat 2 Treat 3 0 1 4 0 4 3 G=24 0 1 6 2 1 3 Σ X² = 92 T=2 T=6 T=16 SS=3 SS=9 SS=6 Use an analysis of variance with α of .05 to

    asked by Pam
  138. science

    During condensation, what must be changed, temperature or heat energy?

    asked by kate
  139. math

    What's 3 out of 4 of the apples are green.how many apples are green

    asked by anne
  140. Maths

    Suppose that a boat moves in a straight line with speed v through water with resistance proportional to the square of its speed v with initial speed v0 and initial position x0. Find its speed v(t) and position x(t) and conclude that the boat travels an

    asked by James
  141. Physics

    A 4 kg crate slides down a ramp.the ramp 2.9 m in length and incline at an angle of 35 degress.the crate start from rest at the top and has a friction force of 3 n.what is the speed of the crate

    asked by Sydney
  142. psychology

    It's for a psychology experiment, i'm comparing the reaction times of people to the number of hours of sleep they get per night on average. Please give me some ideas on how to carry out this experiment. For example, like what will be a good way to select

    asked by Mina
  143. math

    different was to make this equation true. 24 x 18=

    asked by cody
  144. math

    How can you order 3 fractions by using a number line?

    asked by mateo
  145. Research report question

    What are the three main parts of a research report? title, body, conclusion introduction, body, sources introduction, body, conclusion introduction, evidence, conclusion

    asked by Mr.Brain
  146. math

    One batch of fruit salad has equal amounts of which kinds of fruit?Explain how you decided.

    asked by mateo
  147. history

    Which of the following is true of the Spanish-American War? A. The black soldiers who fought had gained experience and distinction during the Indian Wars. B. Racial tensions were suspended for the duration of the war. C. About one in ten American soldiers

    asked by sergey
  148. math

    How can you order 3 fractions by using a number line?

    asked by mateo
  149. research report question

    What are the three main parts of a research report? title, body, conclusion introduction, body, sources introduction, body, conclusion introduction, evidence, conclusion

    asked by Mr.Brain
  150. history

    After the election of 1890, organized groups supporting farmers called for the formation of a third party that became generally known as the _______ Party. A. Populist B. Ocala C. American D. Socialist i think its a

    asked by sergey
  151. history

    As its intellectual voice, ______ became the leader of the Harlem Renaissance. A. Claude McKay B. W. E. B. Du Bois C. H. L. Mencken D. James Weldon Johnson i think its b.

    asked by sergey
  152. organic chemistry

    Did a grignard experiment where we were supposed to form triphenylmethanol but something went wrong. When we heated up the mixture with the petroleum ether, it didn't solidify, it turned dark and oily. What went wrong?

    asked by emily
  153. english

    course journal penn foster

    asked by kim
  154. Trig

    How do I use the unit circle to evaluate tan(-3pi/4)

    asked by Courtney
  155. statistics

    Consider the probability that less than 13 out of 151 CDs will be defective. Assume the probability that a given CD will be defective is 12%

    asked by Tammy
  156. business studies

    core business activities of absa at the top of jse csr index

    asked by mamodibo high school
  157. math

    The Carsons are putting a rectangle swimming pool in their yard. It will measure 20ft by 12ft. They plan to have a cement walkway around the pool which should measure 4 ft wide. What is the area of the walkway?

    asked by sam
  158. physics

    A car drives along a road section free of curves with speed v0 first through the hollow of a valley (radius of curvature r1) and then over a mountain top (radius of curvature r2). Let the driver have mass m. • What changes in his weight does the driver

    asked by Teri
  159. Chemistry

    Solid mercury breaks down when heated forming the elements mercury and oxygen. write an equation for this reaction

    asked by Pat
  160. Math

    An object suspended from a spring is oscillating up and down. The distance from the high point to the low point is 30cm, and the object takes 4s to complete 5cycles. For the first few cycles, the distance feom the mean position, d(t) centimetres, with

    asked by Katlyn
  161. math

    How many balls of clay and straws are needed to make a hexagonal pyramid?

    asked by Victoria
  162. Biology

    Stem height in the pea plant is one of the traits studied by Mendel. The tall allele is dominant to the short stem allele. What is the probability of a tall offspring if two heterozygous plants are mated? What proportion of the tall offspring is likely to

    asked by arthur
  163. Biology

    The original high estimate of the number of protein-coding genes in humans was based partly on the number of different known proteins made by the human organism. How can the small number of genes now thought to be present account for this larger number of

    asked by arthur
  164. bioloy

    Which fraction of the genome contains the most information? Explain.

    asked by arthur
  165. Little help with math?

    48.03 / 7 = What? I don't get this You must put it to repeat

    asked by Nomad
  166. Social Studies

    What two cities in the area known as the west bank do Jews and Muslims both consider holy?

    asked by Jerald
  167. Pre-calculus.

    Wesley and Delia are playing a math game. Wesley gives Delia these step to follow. Step 1: Multiply a number by 6 and then subtract by 4. Step 2: Divide the result by 2 Step 3: Add 3 to the result from the second step. If Delia's final answer is 19, What

    asked by Isis
  168. ALGEBRA 2...

    1. Simplify 2.3^5 log base 2.3^1 2. How do you solve this matrix using a graphing calculator AX=B A=9 -3 1 B=-7 X= x 1 1 1 -3 y 16 4 1 21 z 3. How many 4-digits numbers have the thousands digit equal to 2 and the units digit equal to 7? 4. If p and q are

    asked by Anonymous
  169. math word problem

    "Adult tickets are $6, Kids are $3. If the total sales are $585, but only 120 tickets were sold, how many adult tickets were sold? If this was 130 it would be easy: $3+$6 =$9; $585/$9 = 65 tickets. The problem is the question specifies 120 tickets.

    asked by vince
  170. Chemistry

    1 g of acid was mixed with 120 ml of distilled water and the solution was filtered into a clean dry beaker. A 25 ml aliquot of this solution was titrated with 0.1120 M NaOH. The pH of the acid was recorded to be 4.42. Calculate the initial concentration of

    asked by Annie
  171. math

    Alyssa bought a 7kg bag of grapes she ate 650g of them how may grams of grapes did she have left

    asked by Anonymous
  172. Physics

    A 9.6-m-long elastic band is used to launch a toy glider. Once stretched to a length of 38 m, the band releases 1.7 J of elastic potential energy when you let it contract 0.071 m. What forward force is the band exerting on the toy glider?

    asked by
  173. Math

    Write an integer that is represented by the following sentence The temperature dropped 17 degrees between noon and midnight.

    asked by Dekerionna Stephens
  174. Physics

    A 9.6-m-long elastic band is used to launch a toy glider. Once stretched to a length of 38 m, the band releases 1.7 J of elastic potential energy when you let it contract 0.071 m. What forward force is the band exerting on the toy glider?

    asked by
  175. Math

    What is greater -19 or -17?

    asked by Mike
  176. Math

    A carnival Ferris wheel with a radius of 7 m makes one complete revolution every 16s. The bottom of the wheel is 1.5 m above the ground. Find the amplitude, vertical shift, phase shift and k value and period. Do all calculations and then make your final

    asked by Krystien
  177. first derivative

    What is the first derivative of ln (x^2 + 2)?

    asked by Sonny
  178. Social Studies

    Christianity claims many holy sites close to what specific body of water Sea of Galilee What two sites are holy to all three religions of Jews Muslims and Christians? Jerusalem and Haifa

    asked by Jerald
  179. aig math

    The ratio of Tim's marbles to Joe's marbles to Matt's marbles is 8 : 6 : 9. If Tim and Joe have 84 marbles altogether, how many marbles does Matt have? Show your work please?

    asked by lidia
  180. Law

    where can I find information on Issues in Supervision and Consultation?

    asked by dora
  181. math

    A 13 foot ladder is leaning against a building.The bottom of the ladder is 5 feet from the building.How high up does the ladder meet the wall?

    asked by evelyn
  182. aig math

    When 306 stamps were shared among Pat, Kyle, and Ryan, Pat got twice as many stamps as what Kyle and Ryan got together. If Kyle got 18 stamps more than Ryan, how many stamps did Ryan get? Don't forget to show your work.

    asked by May
  183. Math

    Dylan says that when comparing numbers the number closest to zero on a number line is always the smallest. Is he correct?

    asked by Krish
  184. Math

    What is the approximate circumference of a circle with a radius of 6 centimeters? A.12 B.18 C.24 D.36 My teacher says it's D and I agree but for the next question he says it's 12 and aren't these two questions the same? What is the circumference of the

    asked by Jerald
  185. Science

    1. To a scientist, a river is a kind of stream. True or False. 2. All streams carry sediment. T/F. 3. A delta keeps growing. T/F. 4. Heavy rain always cause flooding. T/F. 5. A river bank is at the end of a river. T/F.

    asked by T-perry
  186. Social Studies

    What religion claims areas around the Capital of Israel, Tel Aviv, as holy? Is it the Christian religion? What religion claims area along the Kishon River as holy? Jewish?

    asked by Jerald
  187. physics

    The figure shows a 0.3 kg baseball just before and just after it collides with a bat. Just before, the ball has velocity of magnitude 11.4 m/s and angle = 31.4 degrees. Just after, it is traveling directly upward with velocity of magnitude 9.00 m/s. The

    asked by Alex
  188. 3rd grade math

    evan drove into the country for a long weekend. he planned to drive 118 miles on each of 4 days, however his car broke down and he was only able to drive 43 miles on the first day. how many miles per day must he drive to reach his destination.

    asked by mythreyee
  189. probability

    in a 2-card hand, what is the probability of holding only face cards?

    asked by amber
  190. Physics

    What are two types of waves

    asked by Angie
  191. chemistry

    how can I find the Liters of solution. the solution is salt (NaCl) mixed in water (H20) ?

    asked by kezinch
  192. math

    how do I calculate the volume of a liquid in a graduated cylinder if the radius is 3 cm, and the height is 38

    asked by jaxson
  193. Social Studies

    What religion claims Jaffa as a holy city Muslim How many sites along the Jordan river do Christians consider holy? 1

    asked by Jerald
  194. Social Studies

    What two bodies of water does the Jordan River connect Dead sea and Sea of Galilee

    asked by Jerald
  195. language arts Ms. Sue please

    1. Read these two short sentences: There was a blizzard. Nearly 20,000 homes in the metro area lost power. Choose the correct subordinating conjunction to combine them into this sentence: _____ the blizzard, nearly 20,000 homes in the metro area lost

    asked by Delilah
  196. Chemistry

    20 ml of 0.1 M acetic acid was mixed with 25 ml of 0.1 M Sodium Acetate. The pH was measured to be 4.43. 5 ml of 0.1 M Sodium Hydroxide was added to the buffer and the pH was measured to be 4.60. Calculate the pH of the buffer before and after the addition

    asked by Annie
  197. 8th grade math

    In the original design for the livingroom genivie ve planned to have a 6ft by 8ft floor rug made after looking at the budget however she discovers she only had enough money to make a .75 times the size of the original how much fringe must she purchase to

    asked by alyssa
  198. Chemistry

    Hi, could someone please take a look at my solution to this problem and let me know if it's correct? I would really appreciate some help. Calculate the theoretical yield for K3[Fe(C2O4)3]*3H2O; 491.258 g/mol Mass of Ferrous Ammonium Sulfate Hexahyrdreate:

    asked by Constantine
  199. math

    A counter in Eills' kitchen is 1 meter wide 2 meter long. Eills wants to replace the counter with a granite counter top .Howmany sqare meters of granite will he need.

    asked by eboni
  200. chemistry

    For the reaction CO2 + H2 CO + H20 + heat, indicate how the change in condition will shift the equilibrium (ie right or left) a. Removal of CO2 b. Addition of H2 molecules c. Increase volume of reaction vessel d. Addition of catalyst e. Refrigerate

    asked by K
  201. Pre algebra

    Electrical poles that carry electrical wire seem to get smaller the farther away they are. Find the apparent height of each pole if the tallest pole is 50 ft tall and there is 100 ft between each pole.

    asked by Shanequa
  202. Math

    Which sentence will give the best estimate

    asked by Natalie
  203. math(Ms.Sue)

    The ratio of Tim's marbles to Joe's marbles to Matt's marbles is 8 : 6 : 9. If Tim and Joe have 84 marbles altogether, how many marbles does Matt have? Show your work please?

    asked by lidia
  204. 6th grade Math

    A sample of 50 people in Harrisburg indicates that 10 people of them know the name of the mayor of their neighboring city. Out of 5, 500 Harrisburgh residents, how many would you expect to know the name of the mayor of the neighboring city?

    asked by Shane
  205. Reading

    In Ralph Waldo Emerson's "Nature", how does he show his idealism in the essay? I don't understand what the question's asking...what's idealism?? thank you!!!

    asked by Sarah
  206. physics

    A copper rod of length 0.83 m is lying on a frictionless table (see the drawing). Each end of the rod is attached to a fixed wire by an unstretched spring that has a spring constant of k = 73 N/m. A magnetic field with a strength of 0.17 T is oriented

    asked by VictorD2
  207. Math

    Josh wants to get an average bowling score of 135. He will bowl 4 games. How many total points will he need for all 4 games?

    asked by Sadie
  208. math help please

    2. A teacher asks her class of 22 students, “What is your age?” Their responses are shown below. 19, 19, 14, 14, 16, 19, 19, 16, 16, 15, 17, 16, 17, 16, 15, 14, 15, 15, 17, 14, 16, 15 Find the mean, median, and mode for the data. If necessary, round to

    asked by Delilah
  209. math

    A basketball has a diameter of 29.5 inches. If the basketball is fully inflated, about how many cubic inches of air will it hold?

    asked by Olivia
  210. absolute minimum math

    x^2/x-3 on the interval from 3 until infinity. How would you do absolute minimum on this?

    asked by Billy Baston
  211. english

    can you help me find facts and figures why teens should voulunteer if possible how many teens like volunteering i apreciate your help.

    asked by Bob
  212. college algebra

    I'm stuck on 2 problems I know the answers but need to learn to show the work. X^4+x^3=16-8x-6x^2. Answer: -2,1,+-√8 3x^3+4x^2+6=x. (-2,1/3, i√8/3) Please help so I know how to figure these equations out.A big THANKS

    asked by Anonymous
  213. science

    For a given area of land, the average rate of creep is 14 mm per year. How long will it take the area to move 1 m?

    asked by joan
  214. math

    you go up a hill at 10 miles per hour and down the hill at 30 miles per hour what is the average speed and it's not 20 miles per hour

    asked by Anonymous
  215. Alg I

    Factoring ax^2 + bx + c Find two different values that complete each expression so that the trinomial can be factored into the product of two binomials. Factor your trimonials. 4n^2+ __n - 3 Please explain and solve.

    asked by Jane
  216. math

    a counter kitchen is 1 meter wide 2 meter long. Eills wants to replace the counter with a granite counter top .Howmany sqare meters of granite will he need.

    asked by eboni
  217. precal

    The values of x that are solutions to the equation cos^(2)x=sin2x in the interval [0, pi] are a. arctan(1/2) only b. arctan(1/2) and pi c. arctan(1/2) and 0 d. arctan(1/2) and (pi/2) e. arctan(1/2), o, and (pi/2)

    asked by Carson
  218. Gen. Chem

    Could you help me with this homework please.. 105.0 g of water is in a Styrofoam calorimeter of negligible heat capacity. The initial T of the water is 17.1oC. After 288.2 g of an unknown compound at 77.0oC is added, the equilibrium T is 25.1oC. What is

    asked by carl
  219. 6th grade math

    Ella and Nico had $250 altogether. If Nico spent $35, he would still have $5 more than Ella. How much money did Ella have?

    asked by Anonymous
  220. Organic Chemistry

    please homework help A bowl of 582 g of water is placed in a microwave oven that puts out 729 watts (J/s). How long would it take in seconds to increase the temperature of the water from 12.0oC to 46.6oC?

    asked by carl
  221. algebra

    a chemist has 12% hydrochloric acid+24% hydrochloric. How many of each should be 16 liters of 21%hydrochloric?

    asked by linda
  222. math

    I need help with graphing a quadratic function . . . y = -2x^2 Please don't just give me the answer help me through it. . .

    asked by Boobear
  223. Biology { PLEASE HELP :D }

    From an ATP production viewpoint, use fact B to make a statement regarding the efficiency of fats vs. carbs. Fact b - Carbs bind and store water. The metabolism of water yields no ATP. Fat has no water bound to it.

    asked by Emily
  224. science

    after 30s, a runner is spriting at 3m/s. But, 10s later, the runner is sprinting at 3.8m/s. What is the runner's acceleration during this time?

    asked by sahira
  225. math

    Graph the quadratic functions y = -2x2 and y = -2x2 + 4 on a separate piece of paper. Using those graphs, compare and contrast the shape and position of the graphs. (3 points)

    asked by Boobear
  226. Science

    Are the following examples physical changes or chemical changes. Mixing yeast and sugar Dissolving sugar in water Slicing bread Baking bread Melting cheese

    asked by Carol
  227. Math

    Suzanne has a liter of apple juice. How many cups with a capacity of 100 mL can she fill with apple juice?

    asked by Olivia
  228. math

    find tan 30 degrees and tan 45 degrees using the 45-45-90 triangle therom and 30-60-90 triangle theorm

    asked by joan
  229. Lit

    what is the style of the book tuesday siesta? thanks!

    asked by lauren
  230. History

    Who was the best president

    asked by Eric
  231. math

    ln x^4 + ln X = 24 ln e. Find the value of x. ln x^5=24 x^5=e^24....next i don't know how to solve it. someone plz show me the calculation steps.

    asked by ifi
  232. Business

    I have to write a research paper on MBWA (Management by walking around) but I honestly can't think of any good thesis's, or topics to write about. Any ideas?

    asked by Jess
  233. geography

    hurricanes and cyclones originate: a.in the tropics b.in temperate latitudes c.near the poles d.in the center of large land masses Is the answer a?

    asked by ray
  234. English

    1. Traveling in India can be exciting because it has a rich history. 2. Traveling in India can be exciting because it has a rich culture. (Are both grammatical?)

    asked by rfvv
  235. Proctology

    Hi, I am an 11th grade student beginning to look into some college options. I am interested in pursuing a career in proctology and have been reading some preliminary books on the topic. Can anyone recommend a college or pre-med program that would offer a

    asked by Greg
  236. English

    Sorry....Some errors happened...so the same question was uploaded...

    asked by rfvv
  237. Math

    The basketball team has won 21 games and lost 15 games . How many future games can they lose and keep their winning percentage above 0.500?

    asked by TyteAnna
  238. math

    At the Statistics Canada Web site, you can find the percent of adults in each province or territory who have at least a university certificate, diploma, or degree at bachelor's level or above. It makes no sense to find x bar for these data and use it to

    asked by please help
  239. History

    Find at least 5 Mexican War battles that took place in Southern California. (Southern California = the ten southern counties.)

    asked by Suzy
  240. Calculus II

    Does 3/(2^(n) +1) diverge or converge in an infinite sum?

    asked by Sara
  241. math

    Why do we write radian measures with a π rather than just give the decimal equivalent? (for example, why not use 1.88 rad instead of 3π/5 rad?) Thx

    asked by Adam
  242. writing

    Sentence 1: I am writing in reply to your advertisement in the Elkhart Sun for a sails representative. Which correction should be made to sentence 1? 1. Replace to with too 2. Replace sails with sales 3. Insert a comma after advertisement 4. Insert a comma

    asked by Jessica
  243. math

    evaluate each expression for n=3 and n=8

    asked by Anonymous
  244. Calculus II

    Is the series 1/(n(n+1)) convergent? n=2 to n=infinity

    asked by Sara
  245. Math106

    A couple deposits 459 per month paying 6% compounded monthly how much would be in the account in 5 years

    asked by Terri
  246. Science

    Calculate the quantity of energy required to change 3.00 mol of liquid water to steam at 100°C. The molar heat of vaporization of water is 40.6 kj/mol

    asked by Emily
  247. algebra

    What is 80 is 20 times as many as 5 equal in a number sentence?

    asked by jenny
  248. physics

    An unknown liquid fills a square container of sides 10 m. What is the density of a material if the pressure 5 m below the surface is 1.6 atm? Assume g=10 m/s^2 and the pressure at the surface of the liquid is 1 atm. Also assume that 1 atm = 10^5 Pa. (Hint:

    asked by Pri
  249. Math

    I am a number with a multiple of 10, largest digit is in the tens place, and sum of the digits is 3.

    asked by Jill
  250. tfryu

    a triangle has a base of 18in. , sides of 14in. and 16in. with a height of 4in. What is the area?

    asked by sgjkl;[
  251. Maths

    Margie is responsible for buying a week's supply of food and medication for the dogs and cats at a local shelter. The food and medication for each dog costs twice as much as those supplies for a cat. She needs to feed 164 cats and 24 dogs. Her budget is

    asked by Jeconiah
  252. chemistry

    NaCl(s) + H2O(l) Na(aq) + Cl(aq) If you added chloride ions to the above equilibrium, what would happen to the concentration of the products, and the concentration of the reactants? I know the equilibrium would shift to the left, and I am guessing the

    asked by K
  253. math

    a rectangle has a base of 25 in. and a height of 15 in. if the shape is dilated with a scale factor of .6, what is the area of the new shape?

    asked by kaylee
  254. Math

    What are five numbers that have a median of 71,300

    asked by Daniel
  255. statistic

    Assume that previous fast-food research has shown that 80 percent of the consumers like curly French fries. The researcher wishes to have a standard error 6 percent or less and be 95 percent confident of an estimate to be made about curly French fry

    asked by Donna
  256. Solve the inequality...

    Solve the inequality x^2(9+x)(x-9)/(x+7)(x-5) is greater than or equal to 0?

    asked by Jenn
  257. social studies

    What did Davy Crockett want for the United States?

    asked by Boobear
  258. Math

    How do I figure out the problem below? (4-1)x ____ = 3x7 ??

    asked by Alexander
  259. math

    AB=36cm and M ismid point ofAB semicircles are drawn inAB,AMandMBas diameter.a circlewith centreO touches all three semi circle find radius?

    asked by menu
  260. physics

    A person weights 685 N in air but only 497 N when standing in water up to the hips. Find (a) the volume of each of the person’s legs and (b) the mass of each leg, assuming they have a density that is 1.05 times the density of water.

    asked by Jess
  261. chemistry quick question

    I need help with something and can't find this anywhere online. my structure looks like this OH CH2 CH3CH2CH2CHCHCH2CH3 CH3 So that OH looks like it is on a ethyl group. I need to write the IUPAC name and I wrote 3-methyl-4-heptanol but realized my mistake

    asked by michelle
  262. Calculus

    Is the series 1/(n(n+1)) convergent? n=2 to n=infinity

    asked by Liz
  263. Chemistry

    How many grams of silver will be produced on the reaction of 50.00g iron metal with an excess of a copper (ii) sulfate solution ?

    asked by Maria
  264. statistics

    Confidence Intervals; In a survey of 1004 individuals, 442 felt that Randolph spent too much time away. Find a 95% confidence interval for the true population proportion

    asked by ann
  265. business

    what is the utiliterian theory

    asked by john
  266. business

    "...incorporation is no longer the special privilege it once was". Discuss this statement. Does it have any impact on businesses (those not incorporated).

    asked by john
  267. Chemistry

    Performing a gravimetric analysis of Ca2+. 25 mL of unknown [Ca2+} added to 25 mL of 0.15 (NH4)2C2O4 and 75 mL of HCl. Urea also added. H2NCONH2 + 3H2O --heat→ CO2 + 2NH4 + 2OH CaC2O4*H2O --> Ca2+ + C2O42- [Ca2+]unknown=0.06028 M

    asked by Anonymous
  268. Quantum Physics

    Let f:{0,1}->{0,1} with f(101)=1 and f(x)=0 for x ≠ 101 . In this question, we will run through two iterations of the algorithm. (a) What is the superposition after the initialization step? Note that you can describe the superposition Σαx|x> by

    asked by qwerty
  269. Maths

    Solve for x: log5(x-2)+ log5 (x-4) = log6(x-1)

    asked by Jeconiah
  270. math

    simplest form 1/2 x 3/8=

    asked by dario
  271. English

    Q: What is the difference between 'playing field' and 'playground' in meaning?

    asked by rfvv
  272. Chemeistry

    when 4.50 g of fe2o3 is reduced with excess h2 in a furnace, 2.6 g of iron metal is recovered. What is the percent yield when molar mass of Fe2O3 is 159.7

    asked by Sammy
  273. statistics

    Us travel data center survey of 1500 adults found that 42% of respondents stated that they favor historical sites. Find the 95% confidence interval of the true proportion of all adults who favor visiting historical sites.

    asked by ann
  274. Maths

    Bill and Steve decide to spend the afternoon at an amusement park enjoying their favorite activities, the water slide and the gigantic Ferris wheels. Their tickets are stamped each time they slide or ride. At the end of the afternoon they have the

    asked by Jeconiah
  275. college physics

    A 30.3-kg child starting from rest slides down a water slide with a vertical height of 10.5 m. (Neglect friction.) (a) What is the child's speed halfway down the slide's vertical distance?

    asked by Anonymous
  276. chemistry

    provide the appropriate IUPAC name for the following alcohol. designate e or z 8 carbon chain double bonds between 4 and 5 and 6 and 7 methyl group on 6 OH on the second carbon [the only hint i got from this homework is to begin my answer with

    asked by michelle
  277. Physics

    A stopper tied to the end of a string is swung in a horizontal circle. If a mass of the stopper is 13.0 g, and the string is 93.0 cm, and the stopper revolves at a constant speed 10 times in 11.8 secs, what is the tension on the string? I tried solving

    asked by Ted
  278. precalculus

    A ferris wheel is 20 meters in diameter and boarded from a platform that is 3 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 10 minutes. The function h =

    asked by Anonymous