Questions Asked on
November 27, 2016

  1. Language arts

    an some give me ansewrs to the language arts quick check

  2. Math algebra

    Assume that the stopping distance of a van varies directly with the sqaure of the speed . A van traveling 40 miles per hour can stop in 60 feet. If the van is traveling 56 miles per hour, what is its stopping distance?

  3. Math

    F(x)= 3/2x +b In the function above, b is a constant. If f(6)=7, what is the value of f(-2) ?

  4. physics

    a certain force gives m1 an acceleration of 12m/s^2 the same force gives object m2 an acceleration 3.3m/s^2. wahty acceleration gives to an object having mass(A) the difference m1 and m2 (B)the sum of m1 and m2

  5. Math

    Two sI'm of money in the ratio 5:1 .if the smaller amount is 15 kobo.what is the largest?

  6. math

    Tickets for a certain show cost ​$15​, $24​, ​or, for VIP​ seats, ​$41. If ninenine times as many ​$15 tickets were sold as VIP​ tickets, and the number of ​$15 tickets sold was 55 more than the sum of the number of ​$24 tickets and

  7. algebra

    Bob needs to wash the windows on his house. He has a 25-foot ladder and places the base of the ladder 10 feet from the wall on the house. How far up the wall will the ladder reach?

  8. Probablility

    There are 4 cardio stations and six weight lifting stations at the gym. You decide to chose 4 stations randomly for today's workout. Whats the probability that you choose all weight lifting or all cardio?

  9. Social Studies

    What was the purpose of the Freedman's Bureau?

  10. history

    Answer now plz which of these words best describes the mythology of ancient egypt as told in this passage Peaceful,Violent,factual,humorous

  11. math

    a car travels 480 miles in 8 hours. what is the unit rate

  12. history

    What does Herodotus question about the Nile in this quote? why it has its great floods why it has no breezes blowing from it why it has its towering forests why it has its enormous length I need help bad plz. I have tried looking in my text book and

  13. Algebra

    On the first part of a trip to Carmel traveling on the​ freeway, Marge averaged 70 mph. On the rest of the​ trip, which was 25 mi longer than the first​ part, she averaged 60mph. Find the total distance to Carmel if the second part of the trip took

  14. Math

    What two numbers round to 700

  15. mechanical behaviour of materials

    n isotropic alloy contains 5% by volume of a precipitate of radius 10nm. Assume the primary metal is in a simple cubic arrangement. The alloy has a Young's modulus E=70GPa and a Poisson's ratio ν=0.35. If Γ=0.9J/m2 (the energy needed to cut through the

  16. math

    In a rhombus ABCD,diagonals AC and BD are respectively 8cm and 6cm , the length of each side of rhombus is

  17. Math

    Combine like terms. 6b plus 7b-10= Would I add 6b + 7b=13b-10 13b-10=3b? Would this be correct? Please advise.

  18. Math

    Sarah wants to install new carpet in her living room. The small square is titles 2yd by 2yd and will not be carpeted. How many square yards of carpet will she need if its 6yd by 4yd? ---------------6yd---------------| |. | |. I ______ I 4yd I I 2yd I

  19. pre calculus

    Find all of the solutions of the equation x4-625i=0 and represent the solutions graphically. what is the next step to answer the question? (x^2-25√i)(x^2+25√i) (x-5∜i)(x+5∜i)(x-5∜i i)(x+5∜i i) i = 1 cis π/2 ∜i = ∜1 cis π/8

  20. Algebra

    Biologists tagged 180 fish in a lake on January 1. On February​ 1, they returned and collected a random sample of 45 ​fish, 15 of which had been previously tagged. On the basis of this​ experiment, approximately how many fish does the lake​ have?

  21. MATHS

    "A DIAMETER OF THE WHEEL OF A CAR IS 84 CM AND THE SPEED OF A CAR IS 72KM/H. THE NO. OF REVOLUTIONS MADE BY THE WHEEL IN 11 MINUTES IS."IS THIS QUESTION EXAMPLE OF CIRCLE OR CYLINDER?

  22. MATH

    5kg of flour and 4kg of sugar cost $14.80. If 3/4kg of flour cost as much as 3/5kg of sugar, what is the cost of 1kg of sugar?

  23. Physics

    A brick of mass 2kg just begins to slide down an inclined plane at an angle of 45 degree with horizontal.what will be the force of friction

  24. Science , Biology

    Cretaceous extinction... The evidence tells you that “overwhelming evidence suggests that the extinction was caused by a 10-km-diameter asteroid that struck Earth.” Suggest at least three lines of evidence that might have led scientists to this

  25. Chemistry

    I need to find the pH of a 500 mL solution of pure water after adding 33.0 mg of H2SO4 and 18.0 mg of HCl. Please help! So far I have tried to find the moles of 33.0mg of H2SO4 and got 3.24. Then I calculated pH by multiplying the subscript of H (2) by the

  26. Algebra

    A private plane traveled from Seattle to a rugged​ wilderness, at an average speed of 220 mph. On the return​ trip, the average speed was 264mph. If the total traveling time was 5 hours, how far is Seattle from the​ wilderness?

  27. Business Math

    Any help at all is deeply appreciated. I am trying to figure out the formulas to use for the following problems: 1. Suppose that in a monopoly market the total cost per week of producing a high tech product is given by C(x) =3600+100x+2x^2. Suppose further

  28. Trigonometry

    arctan(cot10Pi/9)

  29. Math

    find the velocity and direction of flight of a plane that is headed at 126 degrees with a ground speed of 215 mph in a 34 mi wind from south 36 degrees west

  30. Physics

    An aluminum (with Young's modulus 7 x 10^10 Pa) rail is 88.0 m long and has cross-sectional area 0.00050 m^2. The rail is fixed at one end and a 4000 N force is applied at the other end. By how much does the bar stretch?

  31. math

    You have a 4/5 quart bottle of pineapple juice. How many 4/45 quart glasses can you fill?

  32. History

    Which captain of industry is known for believing that it was the responsibility of the wealthy to be charitable? Carneige Rockfeller Vanderbilt Pullman

  33. Math

    A volleyball team has won 7 games during their 21 game season. What is the ratio of losses to total games?

  34. runways and inverses!

    You have 700 sq ft of plywood to make the stage floor. Use A^-1(x) to find the dimensions of both the runway and the main part of the stage. main stage is a rectangle and runway is a square. length of the main stage is 3x o f the runway, the width of the

  35. precalculus

    use the information to solve the triangle. If two solutions exist, find both solutions can you show how to work this out? A=150°,b=4.8,a=9.4

  36. inverses

    You have 700 sq ft of plywood to make the stage floor. Use A^-1(x) to find the dimensions of both the runway and the main part of the stage. main stage is a rectangle and runway is a square. length of the main stage is 3x o f the runway, the width of the

  37. Physics

    A torque of 50 N*m acts on a wheel of moment of inertia 25 kg*m^2 for 4 s and then is removed. b)How many revolutions does it make in 15 s if it starts at rest? I found the angular acceleration, 2 rad/s^2, but I don't know how to find the amount of

  38. Math

    Jasmine has taken a quiz she ks on question 16 and has completed 20% of the quiz. How many questions does the quiz have?

  39. 6 grade math area perimeter

    I found the area but I need help on perimeter. The shape in form of letter L. The long is a 1×4 and the box on top is a 1×1. THE AREA IS 5 sq.units I think perimeter is 12 is this right

  40. Math

    How does this probability of giving birth to three boys after each other?a tree diagram can then be used.

  41. 6 grade math area perimeter

    I want to make sure this one is ok. I know the area now I need perimeter. It's a long line it's a 1× 6 and on top in the middle is another box 1×2 shape the area I got was 8 sq.units. I think perimeter is 15units. Is this right

  42. Math algebra

    If f(x) =2x-1, then f^-1(x)=???

  43. Chemistry

    A sample of Chlorine occupies 8.50 L at 80.0 C and 740 mm Hg. What volume will Chlorine occupy at STP?

  44. Ap Chemisty

    How many milliliters of an aqueous solution of 0.172 M silver fluoride is needed to obtain 12.1 grams of the salt?

  45. Stoichiometry

    Which one is the limiting reactant if 0.0453 moles of sodium carbonate was used and 0.0216 moles of calcium choloride was used? Balanced Eq. Na2CO3 + CaCl2 = CaCO3 + 2NaCl

  46. medical coding

    ICD diagnosis code for traumatic left second fracture of metatarsal

  47. science

    solubility of borax in 300 ml of water.

  48. History

    Name two effects on native americans because of the influx of other groups.

  49. History

    What are 2 things the railroad supplied from the west to other parts of the world ? What technology was used to show that the railway was complete ?

  50. Software Engineering

    When did you start "speech and Auditory interfaces" who made it? What are the programming languages that was used in its design? How are designed? Her examples?

  51. Math-Probability

    A multiple choice test has 10 items and each problem has four choices A, B, C, and D. How many different ways can the answer sheet be completed?

  52. business finance

    Stacy took out a loan for $15,000. Her note was for 300 days at 5% ordinary interest. On day 100 she made a partial payment of $5,000. On day 200 she made a second payment of $5,000. On day 250 she made yet a third payment of $2,500. a. (1 point) What is

  53. Chemistry

    I am trying to answer the question below, and I am guessing the reason lactate has a lower Km is that it is better able to accept electrons than ethanol. Is this correct? If so, what makes lactate a better electron acceptor? Any help is greatly

  54. History

    Fill in the blank The purpose of the act was to provide land to railroad companies so that a transcontinental railroad could be built.

  55. chemistry

    A bottle of cabernet sauvignon wine contains 12.5% v/v ethanol. How much ethanol will be present in a dozen 750 mL bottles of this wine?

  56. Probability

    A multiple choice test has 10 items and each problem has four choices A, B, C, and D. How many ways can the answer sheet be completed so that every answer is wrong?

  57. algebra

    Shari drove for 90 miles in the city. When she got on the highway, she increased her speed by 20 mph and drove for 130 miles. If Shari drove a total of 4 hours, how fast did she drive in the city?

  58. algebra

    In a random sample of Americans of voting​ age, 7​% more people identified themselves as Independents than as​ Republicans, while 6​% fewer people identified themselves as Republicans than as Democrats. Of those​ sampled, 3​% did not identify

  59. Math

    Combine like terms. 7a square root 2 - a square root 2 + 16= My answer would be as follows: 7a square root 2 + 16 Can you please check to see if I got this correct

  60. Social Studies

    Who thought that governments should be headed by philosopher-kings?

  61. Math

    Simplify -i-2-(6-4i)-(5-2i)

  62. Algebra 1 A

    I need some help with my Algebra project. I already finished task on but I'm unsure of how to solve my inequality. Please help. Task 1 Summary: You are going to decide on a summer business to start. Figure out what you will do, how much it will cost you,

  63. Math

    James shares 9/5 of his chocolate bar with his 2 friends. How much does each person get

  64. Algebra

    6 kg of potatoes cost 12.90 dollars . How many kilograms of potatoes can you get with 8 dollars?

  65. Algebra

    Ms. Take’s and Ms. Fortune’s classes took the same test. The mean score of the 20 students in Ms. Take’s class was 75. The mean score of the 30 students in Ms. Fortune’s class was 95. Find the mean score for all students.

  66. physics

    A pendulum clock has a pendulum shaft made of aluminum which has a coefficient of linear expansion of 24.0*10^-6K^-1. At 22 degrees celsius the period of the swing of the pendulum is 1.00seconds. If the temperature is reduced is reduced by 0.625°C every

  67. math

    Find the total surface area of one of small cubes to that of the larger cube if a cube of edge 5cm is cut into cubes, each of edge 1cm.

  68. PHYS-041-Keiler: Physical Science

    A prehistoric bone is found at an excavation site. If the bone originally contained 22 kg of carbon−14, how much would remain after 11,400 years?

  69. Algebra

    A 512-page book has pages 7 inches wide by 9 inches high. The printed area measures 5.375 inches by 7.75 inches. The left margin is 0.3125 inches and the top margin is 0.5625 inches How wide are the margins at the right of each page? How wide are the

  70. math

    Find the surface area of one of small cubes to that of the larger cube if a cube of edge 5cm is cut into cubes, each of edge 1cm.

  71. Civil engineering

    Prove varignons theorem , with ex pls

  72. English

    Why do we have to follow school rules and regulation?

  73. math

    plss help equation for this statement the distance D travelled by a car varies directly as its speed s

  74. Math

    If (t/5)/(t-5)=10 what is the value of t ?

  75. maths

    Paint is stored in 36litres barrels. The content of the barrels is poured into 800ml cans for sale. a) how many cans can be filled from one barrel. b) 60 cans are packed into every box for delivery. Write as a Mixed number. the number of cans made from one

  76. maths

    in a class of 40 children 3/8 likes english,2/5 likes maths and 3/4 like science .find the number of children who like each subject.

  77. Physics

    A substance has the following properties; Boiling Point = 140 °C, Freezing Point = -10 °C, specific heat as a gas, liquid and solid, 0.3 cal/g.C°, 1.8 cal/g.C° and 0.8 cal/g.C° respectively. Heat of fusion =100 cal/g and heat of vaporization = 480

  78. MATHS

    WHAT IS SHAPE OF A CAR WHEEL.

  79. Math (calculus) (mean values)

    A company introduces a new product for which the number of units sold S is given by the equation below, where t is the time in months. s(t)=155(7-9/(2+t)) a) Find the average rate of change of s(t) during the first year. Which my answer was 1395/28 b)

  80. Albert

    x varies directly as the product of u and v and inversely as their sum.If x=3 when u=3 and v=1.

  81. Computer Science (please help )

    Prove that if A is any language over the alphabet {0}, then A* is regular.

  82. Socials Studies

    Which class(es) did not see many benefits from these major changes in the Industrial Revolution?

  83. Physics

    Block A, with a mass of 10 kg, rests on a 36.9° incline. It is attached to a string that is parallel to the incline and passes over a massless, frictionless pulley at the top. Block B, also with a mass of 10 kg, is attached to the dangling end of the

  84. maths

    An exercise machine is marked at $2400 before VAT at 15% is included. a) calculate the VAT b) calculate the cost after VAT c) If 20% discount was given to the customer before the VAT was included. What discount but before the VAT?

  85. chemistry

    why half cell reactions are given in reduction reations by IUPAC?

  86. Stoichiometry

    Suppose you wanted to add just enough 0.40M calcium chloride solution to 75.0mL of 0.60M of sodium carbonate solution for all of the sodium carbonate and calcium chloride to react. a) What volume of 0.40M calcium chloride solution would be required?

  87. maths

    A watch was sold to a customer for $1,040 to make a profit of $240 a) Calculate the profit percent on the watch? B) The customer AMANDA GARCIA had her name engraved on the watch at the cost of $6.50 for each letter of her name. Calculate the cost of the

  88. Trigonometry

    Evaluate arctan(cot10Pi/9) sec(arccos(-1/6) csc(arcsec(5/3) sin(2 arccos(sqrt5/5)

  89. Maths

    How do I sketch a curve with equation y = x(x-2)^2 ?

  90. Software Engineering

    When did you start "speech and Auditory interfaces" who made it? What are the programming languages that was used in its design? How are designed? Her examples?

  91. Math

    Molly has a jar containing 4 yellow 3 blue 3 green and 2 orange marbles If Molly removes one marble without looking record the color does not replace it before drawing again what is the probability that she will remove two yellow marbles

  92. Chemistry

    why does chlorobenzoic acid have a lower freezing point than benzoic acid explain? would this have something to do with the intermolecular forces or polarity. I know that the chlorobenzoic acid a Cl atom in the molecule which would create for a stronger

  93. Algebra

    Ken has recently started saving his spare change. In his piggy bank, he has $1.65 that consists of nickels and dimes. The number of nickels is one more than two times the number of dimes. Find how many of each coin he has

  94. Math

    what two numbers rounds to 600

  95. Maths

    3. A three digit number is selected at random. What is the probability that its unit digit is 2

  96. math

    In a football game, a touchdown with an extra point is worth 7 points and a field goal is worth 3 points. Suppose that in a game the only scoring done by teams are touchdowns please help!!!!

  97. Math

    I'm confused between using the terms "less than" in translating statements and phrases to expressions. What's the answer when the statement says:thrice a number less than fifty? I'm asking because sometimes expressions could be easily get just by putting

  98. Stoichiometry

    Suppose you wanted to add just enough 0.40M calcium chloride solution to 75.0mL of 0.60M of sodium carbonate solution for all of the sodium carbonate and calcium chloride to react. B) what mass of calcium carbonate would be produced (assuming a 100% yield)

  99. Chemistry

    calculate the concentrations of H2S04, H30+, HSO4- and SO42- in 0.4 M H2S04 solution

  100. Chemistry

    hen excess Ag metal is added to 0.246 L of 1.290 M Fe3+(aq) at 298K, the following equilibrium is established: Ag+(aq) + Fe2+(aq) Ag(s) + Fe3+(aq) (1) If the equilibrium concentration of Ag+ is 0.504 M, what is the value of K? K = (2) Using the value of K

  101. science

    In The Darkest Part Of The Mansion, Where The Winds Are Set To High, A Man Fears His Presents, Where The Cotton Lies, Where Am I?

  102. Maths, multiplicative inverse

    Show that -3 is a multiplicative inverse of 17 modulo 26.

  103. Literary Studies

    Why does Frances from "Superstitions" make rules and rituals?

  104. Math

    The area of an isosceles right triangle decreases at a rate of 5 cm² per second. At what rate is the hypotenuse changing when each of the other sides has length 10 cm? So far I have: Given: dA/dt= 5cm^2/s Find: dH/dt when b&h= 10cm And h= root 200(?)

  105. math

    the mystery number is an odd number. The digit in tens place is equal to digit in the ones place. The sum of the digit is more than 10 and less than 15. what the number?

  106. Chemistry

    What volume of hydrogen, reacting with nitrogen, will produce 500 dm^3 of NH3 at STP?

  107. Maths

    I have a number, when i multiply it by 5 and add 25, the answer is 135.

  108. Math

    A radioactive substance decays to the formula N=8e^-0.6t , where N is the number of milligrams present after t hours. Determine the initial amount of the substance to the nearest 10th of an hour, determine the half life of the substance, and determine the

  109. Math

    Four ways to round to 400

  110. precalculus

    how do you convert to polar form?

  111. Physics

    A bullet of mass 10g strikes a wooden block with velocity of 300m/s after penetrating 20cm into it, it's velocity drops to 200m/s. Then average resistance offered by the block is

  112. Mathh

    -2(+3+-4+-8+7)

  113. chemistry

    estimate the enthalpy change for the following reaction: OF2 + H2O = O2 + 2HF

  114. math

    Solve the quadratic equation, 2 x2 - 5 x+3

  115. American History

    The federal government sets requirements that all public schools must follow, while state governments set standards listing what students need to learn. This is an example of what constitutional system? A. dual federalism B. cooperative federalism C.

  116. Chemistry

    Among the solubility rules previously discussed is the statement: Carbonates, phosphates, borates, and arsenates—except those of the ammonium ion and the alkali metals—are insoluble. (a) Write the expression for the equilibrium constant for the

  117. Social Studies , World history

    Feudal Japan and Inca empire Are these civilizations more similar or different? Please answer mee

  118. Socials Studies

    Which class(es) did not see many benefits from these major changes in the Industrial Revolution?

  119. precalcalculus

    use the information to solve the triangle. If two solutions exist, find both solutions. How do you work this out? 1.A=36°, B=98°, c=16 2.a=4,b=8,c=10 3.A=35°,b=8,c=12 4.A=25°,b=28,a=18 5.B=130°,c=10.1,b=5.2 6.A=150°,b=4.8,a=9.4

  120. Math algebra

    A varies jointly as R1 and R2 and inversely as the sqaure of L. Find A when R1=180, R2=8,L=5, and k=3/2 P.S the 1 and 2 next to the R are exponents at the bottom of R and not at the top.

  121. CHEMISTRY

    HOW TO PREPARE 1 M GUAICOL FROM LIQUID GUAICOL SOLUTION MOLECULAR WEIGHT 124.14 DENSITY 1.11

  122. precalculus

    How do you convert to polar form?

  123. dp

    What is the pressure due to a man weighing 80 kg standing on his feet? Area of his feet 160 Sq. Cm

  124. pre calculus

    How do you use de Moivre's formulas to find ∜i?

  125. physics

    Car A with a mass of 1000kg is travelling east at 25m/s when it collides with car B, 2000kg, travelling north at 15m/s. After the collision, the two cars stick together and have the same velocity. Assume that they slide without friction after collision.

  126. math

    If 3 people worked and earned $5554.52 in one day. How much does each person earn if one worked for 5 hours, the other worked 7 and the other worked 8 hours?

  127. Algebra

    suppose that y is directly proportional to x and that y=10 when x=3. Find the constant of proportionality k. K= Use y=kx to find when x=6 Y= Is the answer: K=3.33 Y=9.99 Please help. I'm so confused.

  128. Chemistry

    What mass of calciumoxide is formed by heating Ca(iii)oxocarbonate(iv) when calcium = 40, carbon = 12, oxygen = 16

  129. English

    For the Tell-Tale Heart, what are two pivotal artifacts?

  130. Emma

    Solve (√6+i)(√6-1)

  131. Math

    -5+√-50/10 Solve

  132. math

    Solve the quadratic equation, 2x^2-5x+3

  133. History

    How did political machines maintain support of citizens?

  134. physics

    A block and tackle pulley system is used to lift a mass of 200 kg.if the machine has a velocity ratio of 5 and efficiency of 80%.sketch the possible arrangement of the system

  135. math

    45 miles per hour_______= feet per second

  136. history

    What lands beside Egypt does the Nile flood? Mesopotamia Ethiopia Libya and Arabia Narmer

  137. Business Math

    Suppose that in a monopoly market the total cost per week of producing a high tech product is given by C(x) =3600+100x+2x^2. Suppose further that the weekly demand function for this product is p=500-2x. Find the number of units that will give the break

  138. Business Math

    Bond Pricing: A 20-year corporate bond has a maturity value of $25, 000 and coupons are paid at 5% at the end of each year. If an investor wants to earn a yield of 7% compounded semiannually, what should she or he pay for this bond?

  139. history

    This is my last question Describe some of the achievements of the Middle Kingdom of ancient Egypt.

  140. Business Math

    A couple is saving for their child's college. They decided they would like to have $50,000 in 18 years. If they can earn 4.5% compounded semiannually, how much should they deposit at the beginning of each period?

  141. Business Math

    A couple purchased a home 5 years ago with a 20-year mortgage for $50,000 at an interest rate of 6% compounded monthly. The home is now valued at $90,000. A) How much are the couple's monthly payments? B)What is their balance after 7 years and how much

  142. chemistry

    what is the purpose of using an ice bath in organic chemistry when isolating the final product?

  143. Math

    A survey about the student government program at a school finds the following results. 190 students like the program 135 students think the program is unnecessary 220 students plan on running for student government next year. If a circle graph were made

  144. Algebra

    Ken has recently started saving his spare change. In his piggy bank, he has $1.65 that consists of nickels and dimes. The number of nickels is one more than two times the number of dimes. Find how many of each coin he has

  145. Chemistry

    In Cl2 + 2KBr -> 2KCl and Br2 produce that brown yellow effect?

  146. History

    Did Andrew Jackson abuse the power of the presidency?

  147. Math

    Question. I have some math problems that I really need help with and this is all new to me. The direction are as follows: Combine like terms 7x4 -5x4 the number four is square root. I don't understand at all what to do. Please help.

  148. Math (calculus) (optimization)

    A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder must have a volume of 4000 cubic feet. The hemispherical ends cost twice as much per square foot of surface area as the sides. Find the dimensions that will minimize

  149. Math

    Combine like terms. 32y plus 5y= I don't know what to do. I don't understand this. Please help.

  150. English

    hange into passive voice. People will honer teachers officers do not demand money from public. My wife prepares food Can you complete all the lessons by the end of January Who speaks the truth? Who has broken the mirror

  151. Physics

    A block of mass 2.5 kg hangs vertically from a frictionless pulley of mass 6.5 kg and radius 16 cm. Treat the pulley as a disk. Find: a) the acceleration of the block b) the tension in the rope I don't even know where to begin,

  152. math algebra

    Find an eqaution for the line passing through (1,3) and perpendicular to the line 3y=-2x+6