1. Geometry

    find the circumference of the figure, Give both the exact value and an approximation to the nearest hundredth. Circle 6.6km I am just learning this and a teacher is using inches but the textbook has metrics and I never learned the metric system Please

    asked by Jeannie on March 28, 2011
  2. Precalculus

    A wheel rolling at a constant speed has a radius of 15 inches and takes 30 seconds to roll 100 feet along the ground. What is its angular velocity? Use 3.14 for pie, and solve to two decimal places.

    asked by Liz on February 22, 2012
  3. Physics

    My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?

    asked by playax0902 on April 7, 2014
  4. Math help Please

    My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?

    asked by Mark on April 7, 2014
  5. calculus

    An Open Box Of Maximum Volume Is To Be Made From A Square Piece Of Cardboard Twentyfour Inches On Each Side By Cutting Equal Suares Frm The Corners And Turning Up The Sides

    asked by ciara on September 16, 2012
  6. Integers

    A scientist measured the temperature at the surface of a 7 inch deep snow. The temperature was -27 degrees. At ground level, the temperature was 24 degrees. How much warmer was the temperature at ground level.

    asked by Edward on May 22, 2015
  7. English

    I left out the following sentences. Please, could you check them too? 1) My backpack is very heavy because inside (in it? are both possible) there are extra clothes, food, water (or food and water) for two days, a map, and a compass. 2) I'll take a big

    asked by Matthew on March 14, 2012
  8. Math

    Jan is making a 3-tier wedding cake for 300 guests. She will make the cake for $3 per serving with the following specifications: -Each serving is 4 inch.3 -Each tier must be smaller than the tier below it. -Each square tier is 4 in. tall with a side length

    asked by WALTER on March 26, 2014
  9. algebra 1

    someone please help me. The function f(x) is shown below: f(x) = (5)x - 1 The function f(x) is shifted to the right by 13 units. Which of the following best represents the new function? f(x) = (5)x + 13 f(x) = (5)x + 12 f(x) = (5)x - 14 f(x) = (5)x - 13

    asked by Anthony on August 12, 2015
  10. math- geometry

    A dilation with a scale factor of 4 maps figure A onto A'. By what scale factor would another dilation map figure A' back to figure A? is it 1/4?

    asked by renee on April 4, 2016
  11. English

    Thank you very much for your corrections. I checked my mistakes but I have some more doubts. 1) During our stay in London we were accomodated (we stayed) in a three-star hotel. 2) We had breakfast and dinner at the hotel and we were free to have lunch

    asked by Henry2 on September 12, 2011
  12. math

    write a definition for an equivalent fraction. A. a fraction of multiplication B. fraction with unlike denominators C. a fraction with the value of n D. a fraction thar represents equal amount I put down D.

    asked by Ami on July 29, 2012
  13. Mathematics

    Suppose that the number of insects captured in a trap on different nights is normally distributed with mean 2950 and standard deviation 550. a) What is the probability of capturing between 2500 and 3500 insects? b) Suppose that we change the location of a

    asked by Lindz on November 6, 2006
  14. calculus2

    A manufacturer of corrugated metal roofing wants to produce panels that are u = 48 in. wide and 2 in. thick by processing flat sheets of metal as shown in the figure. The profile of the roofing takes the shape of a sine wave with equation y = sin(πx/12).

    asked by A on July 21, 2018
  15. Math

    which customary unit would be best to measure the capacity of water in the dolphin tank at an aquarium A.fluid ounce B.quart C.gallon*** which customary unit would be best to measure the weight of all of your textbooks A.ounce B.pound*** C.ton which

    asked by Sid.V on December 9, 2015
  16. Econ

    For a typical negative externality market graph, with Demand curve (also labelled private value), and supply curve (private cost) and a social cost curve above the supply curve. What is the optimal quantity that maximizes total economic well being? Is it

    asked by Anonymous on March 5, 2007
  17. CIVICS

    A citizen's group supporting a new water bottling plant in Citizen City has produced an ad to be run on local TV. Which of the following is a most likely to be heard in this ad? The new bottling plant will be good for our natural resources. The new

    asked by ILOVEcake HELP ASAP on March 17, 2016
  18. chemistry!!

    If someone could please help me figure out this problem and tell me how you did it, I would really appreciate the help!! Chaum drives a car 10,000 miles during the year and the car gets 22 miles/gallon. How many pounds of carbon dioxide in a year will

    asked by stephanie on February 26, 2007
  19. Science

    Waste produced by people in New York State has been dumped into the Atlantic Ocean, where it is distributed by surface ocean currents. Which coastal area is most likely to become polluted by this waste? A west coast of Mexico B south coast of South America

    asked by Angie on February 5, 2009
  20. MATH

    How High?- No Air Resistance Suppose a small cannonball weighing 16 pounds is shot vertically upward, as shown in Figure 1, with an initial velocity v0 = 300 ft/s. The answer to the question “How high does the cannonball go?” depends on whether we take

    asked by SYAKIRAH on April 1, 2019
  21. Critical thinking

    I think this would be Relativist fallacy, am I right????? Letter to the editor: “Once again the Park Commission is considering closing North Park Drive for the sake of a few joggers and bicyclists. These so-called fitness enthusiasts would evidently have

    asked by adam on June 2, 2008
  22. statistics

    A specific study found that the average number of doctor visits per year for people over 55 is 8 with a standard deviation of 2. Assume that the variable is normally distributed. 1. Identify the population mean. The population mean is 8. 2. Identify the

    asked by Cameron on June 3, 2013
  23. geography

    indicate the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, -5) it shows a series of boxes and says to fill them in... _+_ _=_ _ _ _ _ each underscore represents a box. characters to use include; = < >

    asked by bethany on May 31, 2016
  24. Algebra 1B

    The two-way table represents the results of a random survey taken to determine the preferred vehicle for male and female drivers. Given that the participant is a female, which choice is the conditional relative frequency that she prefers an SUV? A) 0.25 B)

    asked by Spring Allergies on May 7, 2019
  25. physics

    Consider a map oriented sot hat the x axis runs east-west (with east being "positive" direction) and y runs north-south (with north "positive"). A person drives 35 km to the west, then turns and drives 44 km to the south. Find the x and y components of the

    asked by judith on September 1, 2010
  26. Math

    Allison's 11th birthday is just around the corner. Her parents are remodeling her bedroom for her birthday. They will replace her carpet and repaint her walls Allison's Room Height 8ft Width 11ft Length 13ft 1.Allison wants the top 1/2 of her walls painted

    asked by Derrick on March 20, 2012
  27. chemistry

    What is the difference between the two strong acids, nitric and hydrochloric acid, when they behave as the oxidised forms in a reduction half-equation?

    asked by alex on May 6, 2013
  28. Physics

    if the area of cross section of a wire in a circuit is doubled its resistivity? (a)becomes one fourth,(b) becomes half (c) remains the same (d) doubles. Exlpain please?

    asked by Mumtaz on November 11, 2016
  29. Physics

    If a cyclist takes two minutes to complete half revolution on a circular path of 120m radius.what is the average speed?

    asked by Sharu on July 18, 2016
  30. physics

    a 2500kg truck applies a force of 4000 N to the road to accelerate forward. What is its rate of acceleration?...can someone please help? I got half way and then got really confused what do I do? Thanks

    asked by Sarah on October 28, 2011
  31. spelling

    Could you give me the synonyms & antonyms for face, door, cut, done, group, true, half, red, fish, and plants? Thanks.

    asked by Yan on March 26, 2009
  32. Physical Science

    I'm working on the "Introduction to radioactivity and half-life experiment". It's harder than I thought. Any references that you know of that might make this easier to understand?

    asked by Tawanza on November 13, 2007
  33. college algebra

    In 4 years, 30% of a radioactive element decays. Find its half-life. (Round your answer to one decimal place.) _____ yr

    asked by Dee on November 17, 2013
  34. math

    the half life of thorium -229 is 7340 years. how long will it take for sample of this substance to decay to 20% of its original amount

    asked by michael on November 4, 2018
  35. math

    How long will it take a given quantity of carbon-14 to lose 99.9% of its radioactivity if the half life is 5730 years? The formula I have been given is Q=ae^rt This is using log and ln functions.

    asked by Niki on April 25, 2011
  36. Algebra II

    Write y=x^2+4x-1 in vertex form. y=x^2+4x-1 y=(x^2+4x+8)-1-8 y=(x+2)^2-9 This isnt one of my answer choices,what am I doing wrong? in second line: y=(x^2+4x +4 )-1 +4 (take one half of the middle coefficient, then square it) y=(x^2+4x + 4 )-1 - 4

    asked by Jonathan on August 8, 2007
  37. physics

    if a cyclist takes one minute to comple half revolution on a circular path 120 m radius.what is the average velocity?

    asked by khadija on March 28, 2013
  38. Math Ms.Sue Help

    Which data value has the highest frequency? A) 1/16 B) 3/16 C) 3/8 D) 5/8 A number line with four x's above one sixteenth, one x above three sixteenths, one x above three eighths, two x's above one half, two x's above five eighth, and one x above three

    asked by Selena on March 21, 2017
  39. math

    John was jogging at a rate of 5mph and he has a one half mile start on Sue who jogs at 7 mph. In how many minutes will it take before they meet?

    asked by Donna on October 23, 2016
  40. Geometry

    The running track at the right is a rectangle with a half circle on each end. FI and GH are diameters. Find the area insidevthevtrack to the nearest tenth.

    asked by Sebastian on September 15, 2013
  41. Math!!!!

    Jessica deposits $6509 in bank at r% p.a. compounded half-yearly. If she obtains an amount of $6764 after 1 year, find the value of r.

    asked by Nicole on March 26, 2012
  42. Chemistry

    After 1.78 years, 1.990 g of a radioisotope remains from a sample that had an original mass of 2.000 g. Calculate the half-life of the isotope.

    asked by Rachel on September 16, 2012
  43. Biology

    Explain how the half-life of a radioactive isotope affects the usefulness of that isotpe in dating specific types of rock?

    asked by brooke on February 3, 2010
  44. math

    The following conjectures were made by students. Which do you think are false? Give a counterexample for each conjecture if possible. a. Only half of the nonzero even numbers up to 100 are divisible by 4.

    asked by chandice on June 20, 2009
  45. Physics

    A pendulum has a mass of 3-kg, a length of 3 meters and swings through a (half)arc of .47 radians. To the tenth of a Joule, what is its Total Energy?

    asked by Skyler on August 15, 2010
  46. Chemistry

    Radium-223 has a half-life of 11.4 days.Approximately how long would it take for the activity of a sample of 223Ra to decrease to 2.00 % of its initial value?

    asked by Josh on April 8, 2016
  47. Chemistry

    please help me balance these equations using the method of half reactions.. Na + HCL = NaCl + H2 Pb + PbO2 + H2SO4 = PbSO4 +H2O Thank you, even a little help is appreciated.

    asked by Justin on April 2, 2014
  48. chemistry

    Complete and balance the displayed half reaction in neutral aqueous solution taking into account the electrons. Mg(s) → Mg2+(aq)

    asked by andy on June 1, 2010
  49. science, chemistry

    Separate this redox reaction into its component half-reactions. O2+2Cu---->2CuO thought it was: Oxidation 2e-+O2---->2O(-2) Reduction Cu---->Cu(2+)-2e- but this is wrong

    asked by Cari on November 30, 2012
  50. Science

    If a loaded truck that can accelerate at 1 m/s2 loses its load and has one-half of the original mass, what acceleration can it attain from the same driving force?

    asked by Justin Wyms on May 20, 2014
  51. chemistry

    If the half-life of a first-order decomposition reaction is 24.2 minutes, how long will it take for 10.0 moles of the reactant to decompose so that only 2.5 mol remains?

    asked by Josh on September 4, 2012
  52. Chemistry

    Radium-223 has a half-life of 11.4 days. Approximately how long would it take for the activity of a sample of 223Ra to decrease to 2.00 % of its initial value?

    asked by sierra on April 7, 2016
  53. Chemistry

    Show the half equations at the anode and cathode for an electrolysis of concentrated magnesium chloride solution using inert electrode

    asked by Eddie on May 18, 2014
  54. Geomentry

    What is the converse of the theorem statement: The segment connecting the midpoints of two sides of a triangle is parallel to the third side and is half as long.

    asked by Mack on April 3, 2007
  55. Chemistry

    Balance? Cr2O7^2- + C2H4O yields C2H4O2 + Cr^3+ (When I say ^ a number followed by a plus or minus that's the charge) Half-reaction method needed.

    asked by Alex on October 11, 2010
  56. Physics

    A cyclist moving on a corcular track of radius 40m completes half a revolution in 40 sec. Its average velocity is nearly

    asked by Khilin on July 24, 2016
  57. Chemistry

    The half-life of hafnium-156 is 0.025 s. how long will it take a 560 g sample to decay to one-fourth it's original mass?

    asked by Jacob on December 11, 2012
  58. chemistry

    balance half equations in basic solution ClO3- to ClO4- Zn to zn2+ BrO3- to Br- IO3- to I2 Sn2+ to Sn4+

    asked by roxy on July 26, 2013
  59. science

    2. You are on the London Eye observational wheel, which is 135 m tall and rotates once every half-hour. What is your velocity (speed and direction)?

    asked by Anonymous on July 18, 2010
  60. Chemistry

    1. Balance the following half reactions in basic solution. ClO3- (aq) ¨ ClO4- (aq) Zn (s) ¨ Zn2+ (aq) BrO3- (aq) ¨ Br- (aq) IO3- (aq) ¨ I2 (s) Sn2+ ¨ Sn4+

    asked by Jenny on July 26, 2013
  61. Marie Ernestine

    Math/Science A car starts from rest and moves at the speed of 30 kph after half an hour. What is the cars acceleration?

    asked by Jack on November 11, 2015


    asked by Maria on September 15, 2016
  63. Civics

    What portion of the Congress or the states must support proposing an amendment to the Constitution for consideration? One-half Three-fifths One-fourth Two-thirds

    asked by Ava on May 15, 2015
  64. Chemistry

    Using the following portion of the activity series for oxidation half-reactions, determine which element(s) can react with an acid to produce H2 gas. Co(s) → Co^2+ (aq) + 2e- Ni(s) → Ni^2+ (aq) + 2e − Sn(s) → Sn^2+(aq) + 2e - H2 (g) → 2H+ (aq) +

    asked by anon on March 5, 2017
  65. physics

    If two wires P and O each of the same length and same material,are connected in parallel to a battery. The diameter of P is half that of Q. What fraction of the total current passes through P?(a)0.2(b)0.25(c)0.33(d)0.5

    asked by Roy on September 24, 2013
  66. Math

    I need help writing the rule. I thought would be just y=kx Earning $4.23 for each half hour rate that i work. How much money do i earn during a given amount of time?

    asked by Stacy on August 26, 2018
  67. physics

    an object weighs 10N on earth .what is the objects weight on a planet one tenth the earths mass and one half its radius?

    asked by Kat on July 12, 2013
  68. College Algebra

    A company that bought a machine for $30,000 wants to depreciate its entire value equally over the next ten years. Write an equation that represents the machine's value, v, in terms of the number of years that have passed since the machines purchase, t.

    asked by Haley on November 20, 2013
  69. Global Business

    I need to prepare a financial overview of my global venture and include a chart that represents the exchange risk for my global operation I'm sort of lost regarding how to start this and what the chart should look like. Can you provide me with some

    asked by kay on June 27, 2009
  70. Algebra 2

    Can someone please help me do the follow problem... ...The cost (in dollars) of producing x sneakers in a factory is given by c(x)=60x+750. The number of sneakers produced in (t) hours is given by x(t)=50t. Fund c(x(t)). Evaluate c(x(5)) and explain what

    asked by Steph on December 16, 2014
  71. government

    which statement about the senate is true? a. it ahs two members from each state b. its members are chosen by state legislatures c. each member represents one congressional district d. seats are apportioned among the states according to their populations d,

    asked by jere on December 27, 2007
  72. Algebra

    P dollars is invested at annual interest rate r for 1year If the interest is compounded semiannually then the polynomial P(1+r/2)^2 represents the value of the investment after 1 year. rewrite the expressions without parentheses evaluate the polynomial if

    asked by Tracy on October 28, 2013
  73. Polynomials

    P dollars is invested at annual interest rate r for 1year If the interest is compounded semiannually then the polynomial P(1+r/2)^2 represents the value of the investment after 1 year. rewrite the expressions without parentheses evaluate the polynomial if

    asked by Tracy on October 28, 2013
  74. Calculus

    Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the right endpoint of each interval. Give three decimal places in your answer and explain, using a graph of f(x), what the Riemann

    asked by nan on March 10, 2016
  75. Science

    if the chemical equation is CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) +CO2(g) and represents the reaction of an antacid, CaCO3, with a acid,HCl. why might someone using this antacid experience discomfort due to gas pains?

    asked by Gana on March 7, 2012
  76. mark check my work algebra

    a cartoonist uses the function below to calculate the net profit he earns from sellings his drawings.In the function, d represents the number of drawings he sells. N(d)= 30(d)-$500...what is domain of N(d)? is the answer all non negative real numbers?

    asked by mark on October 25, 2017
  77. chemistry

    if the chemical equation is CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) +CO2(g) and represents the reaction of an antacid, CaCO3, with a acid,HCl. why might someone using this antacid experience discomfort due to gas pains?

    asked by Kaila(: on December 12, 2010
  78. Ms. Sue can you answer this please

    Damon had answer, but i just want to see if you'll explain it differently... The population of a town P(t)is modelled by the function P(t)=6t^2+110t+3000, where t is time in years. Note t=0 represents the years 2000. When will the population reach 6000?

    asked by Nina on November 17, 2012
  79. chemistry

    Which of the following chemical reactions represents a neutralization reaction? A. CH4 + 2O2 CO2 + H2O B. HCl + NaOH H2O + NaCl C. NH3 + H2O NH4++ OH- D. CH3COOH + H2O CH3COO- + H3O+

    asked by jessie on September 12, 2016
  80. Pre Calculas

    If you deposit $5,000 in an account that pays 5% interest compounded annually, how much money will you have in your account at the end of 15 years? Write an exponential function that represents this situation. I got 1,500,000 but im not sure if i did it

    asked by Ryan on November 25, 2015
  81. Earth's Dynamic Atmosphere

    What is the mainstream unit of measuring air pressure? A. Inches of mercury B. PSI C. Pounds per square foot D. Centimeters of mercury my answer is a.

    asked by Prisila on December 26, 2017
  82. Trigonometry

    A car with a wheel of radius 14 inches is moving with a speed of 55 mph. Find the angular speed of the automobile to the nearest mile per hour. I got 55/14

    asked by Joe Smith on February 12, 2013
  83. World History

    what would we need to make a pirate ship that is at least 6x12 inches I know Popsicle sticks, hot glue gun, what else?? I also need to make a compass, caravel, astrolabe

    asked by Reina Bonilla on December 8, 2015
  84. Math - repost for Ocean

    Which special version of the Pythagorean Theorem can you use to find the length of any squares diagonal, d, using only the length of its side, 12 inches. Please help been struggling with this for a long time

    asked by Ms. Sue on October 16, 2018
  85. statistics

    Varsity team try out. Assume the distribution of heights to be normal w/a mean of 64inches & standard deviation of 4 inches. only 15 students passed. how many students joined the try out?

    asked by mike on February 22, 2012
  86. Basic electrical engineering

    The average velocity of the electrons in a conductor carrying a current of 65.5 amp is 0.0153 inches per sec.what is the cross-sectional area of the conductor.

    asked by Kenzo on July 1, 2015
  87. math

    Devon's bike has wheels that are 27 inches in diameter. After the front wheel picks up a tack, he rolls another 100 ft and stops. How far above the ground is the tack?

    asked by Lynn on October 25, 2010
  88. math

    How long is the side of a square picture that can fit inside a circular picture frame that has a diameter of 8 inches? Hint: Pythagorean Theorem

    asked by jr on June 19, 2010
  89. geometry

    you are given one sheet of computer paper (8.5x11 inches). if you were to make two different cylinders with the paper (hot dog and hamburger style), which volume is greater?

    asked by Arielle on April 25, 2016
  90. science

    deltaL= L * coeff thermal expansion Al * delta Temp What is the linear expansion for 1 Deg F change in a piect of aluminum that is 1.9 inches long?

    asked by bobpursley on January 16, 2007
  91. math

    Use the function V(T) = 18T2. A basketball player has a vertical leap of 38.5 inches. What is their hang time to the nearest hundredth of a second? Hint: T is your time in seconds.

    asked by chelsea on January 23, 2012
  92. math

    a piece of fabric is cut into 12 equal lengths with 3 inches left over. Define a variable, and write an expression for the length or the original piece.

    asked by pedro on September 29, 2011
  93. Math

    A box in the shape of a rectangular prism has a volume of 56 cubic inches. If the length of each side is multiplied by 2, what will be the approximate voume of the resulting box?

    asked by Alyssa on August 25, 2011
  94. Math

    A can containing 3 tennis balls has a volume of 128/9pi cubic inches. If the height of the cylinder is 8in., what is the diameter of each tennis ball. Please explain how to do this.

    asked by Katie on January 21, 2016
  95. calculus

    A right triangle with hypotenuse 5 inches is revolved around one of its legs to generate a right circular cone. Find the radius and height of the greatest volume cone.

    asked by jj snoke on November 6, 2011
  96. Solid Mensuration

    A spherical wooden ball 1 ft in diameter is used as a float for a boat. If the ball sinks to a depth of 7 inches, find the area of the wetted surface.

    asked by G on April 3, 2013
  97. English Poetry(response to writeacher)

    The theme is the theme is thoughts of elderly? And that there is only one life to live so live it well? This poem seems confusing.. it is either really easy and literal or metaphoric.. I need to write a paper on the atmosphere of this poem and I think the

    asked by Bethany on November 30, 2014
  98. Science

    I not sure what formula to use for KE or how to find the mass for the equation. Water is flowing through a 2-inch diameter pipe with a velocity of 3 ft/s. Part A What is the kinetic energy of the water in (ft)(lbf)/(lbm)? (lbf) pound force (lbm) pound mass

    asked by Angel on August 25, 2012
  99. math

    Three forces act on a hockey pick as it slides across the ice; the normal force N represents the force the ice exerts upward on the puck and is given by N= , the gravitational force G represents the downward force of gravity on the puck and is given by G =

    asked by Ryan on May 6, 2013
  100. Algebra 1

    Which of the following equations best represents the function for the situation "an initial population (P) of 1,400 people decreasing by 5% per year (x)"? p=1,400-5x p=1,400(0.05)^x p=1,400(0.95)^x p=1,400/5x

    asked by Jamie Ciacico on August 14, 2015