Questions Asked on
November 21, 2014

  1. MATH ONE QUESTION!!!!!!

    The graph shows the number of handbags that Mandy made in one day. What are the variables? Describe how the variables are related at various points on the graph. I will attach the graph in the comments right now:)

    asked by SURFINGLOVER
  2. math

    The temperature in your house is controlled by a thermostat. The temperatures will vary according to the sinusoidal function:f(x)=6sin(pi/12(x-11)+19, where f(x) represents the temperature in degrees Celsius (°C) and x is hours since midnight. What is the

    asked by Anonymous
  3. solar cells

    Imagine that you are in the lab and you can decide the thickness of the Si layer of your solar cell. You want to optimize the solar cell performance for a wavelength of λ=1000nm, for which the absorption coefficient is α(1000nm)=102cm−1. Which of the

    asked by Lahore
  4. physics

    A bowling ball of mass 9 kg hits a wall going 11 m/s and rebounds at a speed of 8 m/s. What was the impulse applied to the bowling ball?

    asked by kristine
  5. Math

    A group of scientists found a new species of spider in the desert. The body temperature of the spider appears to vary sinusoidal over time. A maximum body temperature of the spider reaches 125? after 15 minutes from the start of the examination. Then, 14

    asked by Anonymous
  6. plz help. math

    a caterer is planning a large dinner party for 165 guest. each table must get an equal number of guest, more than 1 guest and fewer than 20. Determine the number of possible table sizes. if the caterers use 11- person tables. how many will they need? there

    asked by Beckey!
  7. math

    A ball is thrown vertically upward with an initial velocity of 5 ft/sec from a height of 20 feet. Which function models its motion? i literally am lost and have no idea how to this problem. if i could have help with the steps on how to do the problem and

    asked by Natalie
  8. English/concrete nouns

    Select all of the concrete nouns. iron anger faith toolbox perseverance lamb grace tooth I think it's B,C,E, and G

    asked by Casey
  9. Math

    The police can determine the speed a car was traveling from the length of the skid marks it leaves. The function they use is S = f(L) = 2sqrt(5L) where S is speed (mph) and L is the length of the skid marks (feet) (a) If skid marks of length 125 feed are

    asked by Dawn
  10. math

    At the amusement park, you decide to ride the Ferris wheel, which has a maxmum height of 80 meters and a diameter of 40 meters. It takes the wheel seven minutes to make one revolution. If you start your ride at the midline and the ferris wheel rotates

    asked by jackie
  11. math

    At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 80 meters and a diameter of 40 meters. It takes the wheel seven minutes to make one revolution. Write the sinusoidal function, f(t), that models the height of your

    asked by kat
  12. Physics

    Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.1 kg · m2 and an angular velocity of +8.0 rad/s. Disk B is rotating with an angular velocity of -10.2 rad/s. The two disks are then linked together without the aid of any

    asked by Morgan
  13. Science Help

    Which of the following is not a goal of the clean water act? A. Controlling water pollution from point sources B. Encouraging voluntary cooperation by citizens related to nonpoint sources of pollution. C. Educating citizens about the importance of reducing

    asked by callie
  14. mixture problems

    A chemist has two solutions of sulfuric acid. One is a 25% solution, and the other is a 50% solution. How many liters of each does the chemist mix to get 10 liters of a 40% solution? 25% solution L: 50% solution L:

    asked by Kendall
  15. science

    A swimming pool measures 10m by 7m by 2m calculate the full force exerted by the water against the bottom. What is the pressure at the bottom due to the water?

    asked by christina
  16. Int.science/Laws of Thermodynamics

    The outward evidence for this transformation can be seen only in the mechanical motion of the motor. True False

    asked by Casey
  17. Math Help!!!

    what is the solution to square root -75 to the nearest integer? 9******* 8 -8 -9

    asked by math help asap
  18. Physics

    Starting from rest, a basketball rolls from the top of a hill to the bottom, reaching a translational speed of 3.83 m/s. Ignore frictional losses. (a) What is the height of the hill? I've tried to use the mgh=1/2mv^2. I think it's because it's

    asked by Stacie
  19. Math

    The product of Greg's age and 5 is 55 Use the variable G to represent Greg's age

    asked by Anonymous
  20. Math

    Find all values of c such that 3^(2c+1)=28*(3^c)-9. If you find more than one value of c, then list your values in increaing order, separated by commas.

    asked by Lilly
  21. Math

    Find all real solutions x to (4^x)-(2^x)=56. Please explain in steps! Thank you.

    asked by Carla
  22. chem

    19. A radioactive nucleus decays to yield a bismuth-211 nucleus and an alpha particle. What was the identity of the original nucleus? Show the nuclear equation that leads you to this answer.

    asked by Zak
  23. math help

    Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)

    asked by Ernie
  24. Science Help

    Which of the following statements describes the conservation od a natural resource? A. A factory burns coal to run its machines. B. A solar energy company harvests energy from sunlight. C. Lights in a house are turned off when not in use. D. A wind energy

    asked by Callie
  25. algebra

    The length of a rectangle is 3 more than twice the width. The area of the rectangle is 119 square inches. What are the dimensions of the rectangle? If x = the width of the rectangle, which of the following equations is used in the process of solving this

    asked by steven
  26. algebra

    The stopping distance s of a car varies directly as the square of its speed v. If a car traveling at 30 mph requires 81 ft to stop, find the stopping distance for a car traveling at 55 mph.

    asked by lakpa
  27. physics

    an ice skater applies a horizontal force to a 20 kg block on frictionless, level ice causing the block to accelerate uniformly at 1.4 m/s^2 to the right. after the skater stops pushing the block it slides onto a region of ice that is covered with a thin

    asked by Maria
  28. Math

    A tightrope walker attaches a cable to the roofs of two adjacent buildings. The cable is 23.5 m long. The angle of inclination of the cable is 13 degrees. The shorter building is 12.0 m high. What is the height of the taller building to the nearest tenth

    asked by Anonymous
  29. physics

    a race car starts from rest on a circular track.the car increases its speed at constant rate at as it goes 2.75 times around the track.find the angle that the total acceleration of the car makes with the radius connecting the centre of the track and the

    asked by abera
  30. math

    sue buys 8.5 pounds of chicken to make tacos. she uses 0.3 pound of chicken. how many tacos can sue make? how many pounds of chicken are left over?

    asked by Cosmic
  31. Advanced Finance

    6. (TCO F) Suppose the December CBOT Treasury bond futures contract has a quoted price of 80-07. What is the implied annual interest rate inherent in the futures contract? Assume this contract is based on a 20-year Treasury bond with semiannual interest

    asked by Charles
  32. thermodynamics

    The outward evidence for this transformation can be seen only in the mechanical motion of the motor. True False

    asked by Casey
  33. Math Help!!!

    please check my answers 1. Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15 *** D.225 2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg.

    asked by math help asap
  34. Chemistry

    when electricity is passed through water, the water decomposes into hydrogen gas and oxygen gas. when 10.00 kg of water were decomposed this way, 5788 l of oxygen gas were produced at 25 degrees celsius and 1 atm pressure. what is the percent yield of

    asked by Noah
  35. Math

    Sue can either borrow 10,000 dollars for 5 years with a simple interest of 7% annually or an interest which compounds annually for 6%. How much more money, rounded to the nearest dollar, would she have to pay back for the more expensive interest

    asked by Trish Goal
  36. Math Check please

    Suppose c is inversely proportional to the square of d. If c = 4 when d equals 3.find the constant of proportionality and write the formula for c as a function of d c= 36/d^2 use your formula to find c when d is 5. is it 100/d2 or 100/5^2? I know the

    asked by Taylor
  37. chemistry

    If 35.0 mL of 0.210 M HCl reacts with excess Mg, how many mL of hydrogen gas are produced at STP? Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)

    asked by Mike
  38. Geography

    How has mexico's culture been shaped by conflict among other people?

    asked by Connor
  39. Chemistry

    in a particular redox reaction, MnO2 is oxidized to MnO4– and fe3+ is reduced to fe2+. Complete and balance the equation for this reaction in acidic solution. Phases are optional.

    asked by lori
  40. Math Help

    You got to go out to eat with your family, and you agree to leave the tip. What is a 15% tip on a $60.00 bill? A. $3.00 B. $6.00 C. $9.00 D. $12.00 Is the answer C? Thank you

    asked by Callie
  41. Science Help

    Which of the following is not a nonrenewable resource? A. Oil B. Petroleum C. Corn D. Gasoline Is the answer A? Thank you

    asked by Callie
  42. math

    Mandy is enlarging a photo that is 3 in. wide and 4.5 in long. if she wants the width of the enlargement to be 10 in, what will be the length??

    asked by Lily
  43. physic

    A cannon ball is fired at an angle of 30° above horizontal with an initial speed vi = 55 m/s. Assume the cannon ball leaves the cannon at ground level and ignore air resistance. (a) How long is the cannon ball in the air? (b) How far from the base of the

    asked by Nicolas
  44. AP English Literature: The Odyssey

    Hello. I am in need of some help with these following questions about The Odyssey: 1. When Odysseus finally lands upon the island of the Phaiacians, what happens which leads him to come out of disguise and reveal his true identity? A. Athena vows to

    asked by Dennis
  45. science

    which of the following shows the path followed by nerve impulses in a reflex motor neurons,interneurons in brain,sensory neurons or sensory neurons,interneurons in brain, motor neurons

    asked by Anonymous
  46. Physics

    A clock has a second hand whose tip rubs against the inside of the glass cover. If the frictional force between the glass cover and the tip of the second hand is 0.0020 N and the length of the hand is 9.5 cm, what is the minimum torque that must be applied

    asked by Ann
  47. MAth Help

    The function f(t)=22sin(piT/3 -5)+80 is used to represent the changes in temperature of a chemical compound used in a lab. What is the vertical shift? I got the answer of 6. Is this correct?

    asked by Anonymous
  48. Algebra

    What is the range of the function f(x)=3-2*51^x? Give your answer as an interval.

    asked by Rachel
  49. Math

    Suppose 81^x=64. What is 27^(x+1)?

    asked by Jake
  50. Int.science

    When a motor is turned on, electrical energy is transformed to mechanical energy plus heat energy. True False

    asked by Casey
  51. Algebra

    At the beginning of each year, Joe invests $10,000 in his retirement fund. The fund gives 10% interestm compouned annually. At the end of the third year, how much money will be in Joe's fund?

    asked by Lilly
  52. Spanish

    in spanish Tell 3 things you do in the morning using reflexive verbs

    asked by Asia
  53. physics

    The position versus time for a certain object moving along the x-axis is shown. The object’s initial position is −2 m. Find the instantaneous velocity at 6 s. Answer in units of m/s

    asked by Henry
  54. Living a Healthy Life

    In America, _______ million children live in poverty. A. 37 B. 14 C. 7 D. 25 B.

    asked by Amanda
  55. Math Help!!!

    In this unit, you learned about different types of numbers that make up real numbers. Note the different types of numbers and provide two examples of each. Which of the number types is easiest for you to identify? Why?

    asked by math help asap
  56. Chemistry

    Balance the following equation in basic conditions CoCl2 (s) +Na2O2 (ag) ----> Co(OH)3 (ag)+Cl- (ag) + Na+ (ag)

    asked by lori
  57. physics

    A 5 ft chain is sitting on a table with 2 ft hanging off (3 ft sitting on table). The table is 4 ft high, and the chain slides frictionless off the table. The chain weighs 15 lb. What is the velocity of the chain when it first hits the ground.

    asked by Trevor
  58. Ratio - proportion - unit rate

    1 quart = 4 cups each person will drink 2 cups. Unit price $5.99 per 1 quart box We have 24 guests what is the answer?

    asked by Summer
  59. Math

    Joanie takes a $6,000 loan to pay for her car. The annual interest reate on the loan is 12%. She makes no payments for 4 years, but has to pay back all the money she owes at the end of 4 years. How much more money will she owe if the interest compounds

    asked by Emily Fisher
  60. chemistry

    a mixture of 39.8g containing potassium chloride and potassium trioxochlorate (v) upon heating, the residue weighed 28.7g what is the percentage mass of potassium chloride in the residue?

    asked by jacob
  61. DON VASCO PATNA

    A salt solution of 15 litres contains 20% salt.How much water must you add to salt solution in order to dilute it 15% salt?

    asked by YATHART
  62. math (fractions)

    a _____________ has a whole number and a part.

    asked by ary
  63. Physics

    A volleyball court is 18 m long from baseline to baseline and the net is 2.24 m high. A volleyball player serves the ball from the baseline by hitting it at a height of 2 m above the floor at an angle of 10 degrees above the horizontal. A.) If the ball is

    asked by Beans
  64. math

    A boat travels 23 mph relative to the riverbank while going downstream and only 11 mph returning upstream. What is the boat's speed in still water?

    asked by gisela
  65. MATH

    Kyle is making a model of an Egyptian pyramid for his history class. Each side of the pyramid he makes has a base of 18.6 cm and height 14.8 cm. Calculate the height of Kyle's pyramid to the nearest tenth of a centimeter. Don't I need an angle to calculate

    asked by Anonymous
  66. Math

    Esmeralda said 4/3 is greater than 7/2 is she right explain your answer.

    asked by Esmeralda
  67. math

    A plane makes an 900-mile flight in 3 1/3 hours against a strong head wind, but returns in 50 minutes less with the wind. What is the plane's speed without the wind?

    asked by gisela
  68. math

    A manufacturer of lapel buttons test marketed a new item at a university. It was found that 1,000 items could be sold if they were priced at $4, but only 600 items could be sold if the price were raised to $8. On the other hand, the manufacturer finds that

    asked by Kendall
  69. college algebra

    An investment initially worth $5300 earns 7.7% annual interest, and an investment initially worth $8000 earns 5.6% annual interest, both compounded annually. How long will it take for the smaller investment to catch up with the larger one?

    asked by Brett
  70. Math

    f(x) = 3x^2 , g(x) = 3x-1, and m(x) = 4x Find and simplify the composition function g(m(f(x))) answers i got which were wrong 3x-1(12x^3) 36x^4-12x^3 Maybe i am putting the information in incorrectly.. Should it look like this (3x^2(4x(3x^2))) then solve?

    asked by taylor
  71. science

    i have BaCl2.2H2O ,how can i get BaCl2.6H2O from it. or i have CuCl2.2H2O how can i get CuCl2.6H2O from it. actually i am working in the field of nanotechnology. trying to prepare nano-ferrites. now am trying to prepare copper doped barium

    asked by Jaspreet
  72. physics

    A car of mass 200g moving at 15.0m/s is accelerated to 25.0m/s in a time of 10.0 seconds determine the accelerating force and calculate the work done on the body

    asked by emmanuella
  73. Math

    use truth table to verify: 1.Distributive law P conjunction ( q disjunction r )= ( p conjunction q ) disjunction ( p conjunction r) 2.Associative law ( p disjunction q) disjunction r = p disjunction ( p disjunction r ) ( p conjunction q) conjunction r= p

    asked by Noor
  74. MATH

    2 A B + A B 1

    asked by siddhi jain
  75. physics

    A launching mechanism consists of an arm (uniform rod with mass 250. g and length 75.0 cm) with a holder (negligible mass) at one end mounted to a hub of radius 3.00 cm and negligible mass at the other end. A string is wrapped around the hub and passes to

    asked by Sham
  76. math

    8A5 +

    asked by siddhi jain
  77. math

    8 A 5 + 9 4 A

    asked by siddhi jain
  78. Question

    What can be in a Manipulative &Math Center

    asked by Anonymous
  79. MATH

    2 A B + A B 1

    asked by siddhi jain
  80. math

    8 A 5 + 9 4 A

    asked by siddhi jain
  81. dr.virendra swarup educationcentre

    Construct a triangle ABC such that BC=5.2 cm , AB=4.8cm and median CM= 3.6cm

    asked by sachin
  82. physics

    A particle of mass and initial velocity strikes a stationary particle of mass . The collision is elastic. It is observed that after the collision the particles have equal and opposite velocities: Find (a) the ratio ; (b) the velocity of the CM (before and

    asked by Alex
  83. physics

    If the athlete lies down on the ground on his back,his weight is spread over an area of 0.75 meter square. How much pressure does he exert on the ground in this position?

    asked by sana
  84. algebra 2

    12x^2-2x-2=0

    asked by anonymous
  85. CIS

    Create three arrays of type double. Do a compile-time initialization and place different values in two of the arrays. Write a program to store the product of the two arrays in the third array. Write a method to display the contents of all three arrays

    asked by Pavan
  86. s.s

    how did the patriots change the outcome of the war

    asked by edu
  87. Algebra 2

    Solving Quadratic Systems x+2y=4 3x-y=5 Please show work!!!

    asked by Alicia
  88. Algebra 2

    Solving Quadratic System y=4x+1 2x-y+1 Please show work!!!

    asked by Alicia
  89. Math Help

    Estimate 78% of 20. A. 14 B. 16 C. 19 D. 2 Is the answer B? Thank you

    asked by Callie
  90. math

    write the folowing in ascending order:2/3, 1/2, 4/5, 7/20

    asked by Anonymous
  91. MATH

    Find the formulas for the functions f(g(x)) and g(f(x))when f(x) = 2/x and g(x) = 2x^2-1 f(g(x)) = ? g(f(x)) = ? for f(g(x)) would it be 2/x(2x^2-1) or g(f(x)) 2x^2(2/x)-1? Would i solve like this? also when I tried to input the answer after solving didn't

    asked by Randy
  92. Physics

    2 vectors have same magnitude.The magnitude of the resultant vector of these 2 vectors are same as either of both vectors.What is the angle between 2 vectors?

    asked by Tangy
  93. Math Help!!!

    define each term and give at least 2 examples of each whole numbers natural numbers integers rational numbers irrational numbers

    asked by Anonymous
  94. Physics

    An airplane flies at a constant speed in a straight line. A bale of hay is dropped from the bottom of the plane to some cattle in a snowstorm. When the bale hits the ground, where is the plane? (Ignore air resistance) Explain your answer!

    asked by Bethany
  95. Science

    2 vectors have same magnitude.The magnitude of the resultant vectors is same as either of both vectors.What is the angle between 2 vectors?

    asked by Tangy
  96. Science- Skin

    How thick is the epidermis as compared to the dermis as compared to the subcutaneous layer? Is there a comparison? If not, then how thick is the epidermis, dermis, and subcutaneous in thick skin?

    asked by Salli
  97. Earth Science - NEED HELP QUICK

    What is the thickness of the layer from 1000 - 850 mb if the mean temperature of the layer is 2 C? From what it says in my textbook it seems as if mb = hPa so all you do is 850 - 1000 = -150 hPa but I am pretty sure that is wrong because what do you do

    asked by Sarah
  98. Science Help

    Selectively cutting down trees on an area of land can best be describes as A. Cutting down certain trees while leaving other trees standing. B. Cutting down all of the trees and smaller plants. C. Cutting down none of the trees on the land. D. Cutting down

    asked by Callie
  99. Int.science/Laws of Thermodynamics

    The efficiency of the engines in the two previous problems are the same, comparing the input and output temperatures. True False

    asked by Casey
  100. Physics

    A marble rolls down an incline of 30 degrees. If the marble is initally at rest at the top of the incline of length 2.0 meters what will the speed of the marble be at the bottom of the incline (a) if the incline is rough enough to prevent any slipping [ it

    asked by Anonymous
  101. Living a Healthy Life

    Refrigerated foods should be stored at _______ degrees Fahrenheit or lower. A. 45 B. 35 C. 55 D. 31 B.

    asked by Amanda
  102. Physics

    A wheel starts from rest and rotates about its axis with constant angular acceleration. After 8.7s have elapsed, it has rotated through an angle of 20 radians. What is the angular acceleration of the wheel? What is the angular velocity when the time t =

    asked by Ann
  103. Science Help

    Using coal for fuel releases pollution into the atmosphere. Why do people continue to use coal if it causes pollution? A. Using more coal reduces the amount of pollution from using oil. B. Using coal is realtivly inexpensive. C. Mining coal helps

    asked by Callie
  104. Living a Healthy Life

    Blood pressure is a measure of A. oxygen levels in the blood. B. the ratio of red blood cells to white blood cells. C. how hard the heart is working. D. the pressure exerted by hemoglobin against the vascular walls. D.

    asked by Amanda
  105. Math

    What is the degree measure of the angle through which the hour hand on a clock rotates from 4:00 pm to 8:00 pm?

    asked by Laya
  106. algebra

    Solve this quadratic equation x^2 + 5x + 3 = 0

    asked by steven
  107. Algebra 2

    Solving Quadratic Systems x^2+y^2=10 2x+y=4 Please show work I need to know how to do it

    asked by Genesis
  108. Physics

    A distant planet has a mass of 0.6400 ME and a radius of 0.9000 RE. What is the ratio of the escape speed from this planet to the escape speed from the earth?

    asked by Ann
  109. Math

    h(x)= 3x+2/7x-6 find the inverse of h^-1(x) h^-1(x) = ? Would I solve it like this h(x)= 3x+2/7x-6 7xy-6y=3x+2 (bring 7x-6 to other side) i got confused here. Would i try to bring the 6y over to the right and then the 3x+2 to the left to get Y by itself.

    asked by Sarah
  110. physics

    A dog sled team is pulling a sled across a flat patch of snow. The total force exerted by the four dogs is 475 N (applied horizontally). The sled (with driver on it) weighs 350 kg. and the coefficient of kinetic friction between the sled and the ground is

    asked by Nicolas
  111. Science Help

    The process of desertification can occur when A. Plants usually found in the desert replace trees that have been cut down. B. Farmers use contour farming techniques. C. An area of forest is clear-cut. D. An area of forest is selectively cut. Is the answer

    asked by Callie
  112. math

    terrence's brother decided to share some pizza with terrence and his sister. if terrence ate 1/4 of the pizza, his brother ate 3/16 of the pizza, and altogether the three ate 5/8 of the pizza, how much did the sister eat?

    asked by Anonymous
  113. please help

    i posted at 12:00 about math... please help for my son.

    asked by Anonymous
  114. s.s

    describe the conditions that the soldiers faced in valley forge in the winter of 1777-78. Why do you feel that soldiers remained in valley forge despite the conditions?

    asked by edu
  115. network

    what is ip?

    asked by Nafisa
  116. Science Help

    Renewable resources are considerered better for the enviorment because A. They are less expensive to harness. B. Once they are harnessed, they can be replaced. C. They do not cause any pollution. D. Using renewable resources encourages people to plant more

    asked by Callie
  117. Living a Healthy Life

    Blood pressure is a measure of A. oxygen levels in the blood. B. the ratio of red blood cells to white blood cells. C. how hard the heart is working. D. the pressure exerted by hemoglobin against the vascular walls. D.

    asked by Amanda
  118. English

    how to write a conclusion for Tochi's essay?

    asked by Austin
  119. algerbra

    A triangle has sides of and 3. Which could not be the length of the third side if it is a right triangle? i need help anyone?

    asked by steven
  120. math

    Which point represents a number that makes this statement true? 64.8 < < 65. 4 assessment graphic

    asked by Aneesa
  121. math

    At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 50 meters and a diameter of 35 meters. It takes the wheel three minutes to make one revolution. If you start your ride at the midline and the ferris wheel rotates

    asked by jackie
  122. Algebra 2

    More About Complex Numbers squ. root 5+i/squ. root 5-i I don't know if you understand this equation, but could you help me.

    asked by Ariana
  123. science

    4 answers energy flow in ecosystem?

    asked by sadie
  124. math

    Which is an example of an algebraic expression? A. 2k + 25 B. z – 8 = 44 C. 3 + 7 = 10 D. 76 – 10

    asked by britney
  125. Math

    Pierre is pouring concrete to create the foundation of a square deck covering 112 square feet. Which is the best estimate of one side of the deck? Round to the nearest tenth, if necessary. 10 ft 10.3 ft 10.6 ft 11 ft I'm going with 10.6. Am I correct?

    asked by Jaxon
  126. math please help!!!!!

    Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)

    asked by Ernie
  127. Quantitative Methods

    7) President’s job approval rating is frequently reported in news programs. You will hear statements such as: “Among likely voters, the President’s job approval rating is 46% with a margin of error of 6%.” a) What percent confidence interval do you

    asked by EJ
  128. science

    As an object get farther from earth is A. its weight increase B.it weight decrease C. it mass decrease D. it weight remains the same I am not sure but is it A(or b)

    asked by edu
  129. algebra

    Which of the following points lies on the circle whose center is at the origin and whose radius is 10 (-6,4) (/10,/10) (6,-8)

    asked by steven
  130. Math

    What is the vertex of y=7(x+5)^2+4?

    asked by Alex
  131. Algebra Help please!

    I already posted this question,and Henrey answered it. I just wanted to clarify a few things to make sure I am on the right track Problem: Joanie takes a $6,000 loan to pay for her car. The annual interest reate on the loan is 12%. She makes no payments

    asked by Trish Goal
  132. Physics

    A 30-caliber rifle with a mass of 3.54 kg fires a 7.33- g bullet with a speed of 596 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder that fires the bullet? (Note there is a tolerance 0.1 percent for the

    asked by Ann
  133. Physics

    A wheel starts from rest and rotates about its axis with constant angular acceleration. After 8.7 s have elapsed, it has rotated through an angle of 20 radians. I found that the angular velocity at 8.7 s is 4.60 rad/s. What is the angular acceleration of

    asked by Ann
  134. Math

    The function f(x)=ax^2 satisfies f(2)=1 and f(32)=4. Find r.

    asked by Jennifer Choi
  135. Math

    A savings account at Xyz bank offers 4% interest, compounded annually. How much money must I invest today in order for the account to grow to $5,000 in ten years? Answer to the nearest whole dollar.

    asked by Brittany
  136. Physics

    A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg • m2 and radius 2.40 m. The entire system is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a final position 1.10 m

    asked by Anonymous
  137. Reading

    "Is Facebook making us lonely" Just to check my understanding on this article,I decided to write a summary.. Please check by reading this article.. Basically the author is trying to say that Facebook connects people with each other but it does not bond

    asked by Anonymous
  138. science

    an object's resistance to change in motion is called is A. Density B. Inertia C. Mass D. Degrees

    asked by edu
  139. Math

    multiply -p(p+q+2)

    asked by Michelle
  140. math

    multiply (-5-p)(5+p)

    asked by Michelle
  141. Precalc

    Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle

    asked by Lily
  142. math

    (-q^2 +3)(q^2 -2)mulitply

    asked by Michelle
  143. physics

    A cannonball is fired with a velocity of 551 m/s. If the cannon is aimed 12° above the ground, how far away does the cannonball land? Ignore air resistance and use 9.8 m/s2 for acceleration due to gravity.

    asked by tommy jinkins
  144. Math

    h(x) = log (6x+5/7x-4) Find a formula for the inverse function h^-1(x) h^-1(x) = My work so far h(x) = log(6x+5/7x-4) y=log(6x+5/7x-4) x=log(6y+5/7y-4) 7xy-4x= log(6y+5) how would I solve from here. Would I solve for y then do the natural log of both sides

    asked by Sarah
  145. ET1210-Dc/Ac Circuits

    if a certain number of equal resistors are wired in series across a certain voltage source, determine how much voltage is across each resistors.

    asked by patrena
  146. ET1210- Dc/Ac Circuits

    When you know the wattage and applied voltage of a light bulb, determine its resistance

    asked by Trena
  147. physics

    A 30-caliber rifle with a mass of 2.80 kg fires a 9.84- g bullet with a speed of 726 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder that fires the bullet?

    asked by Max
  148. math

    express 4(5x+3)/25x^2-9

    asked by Celine
  149. Math

    f(x) = 6 / 5+x g(x) = f(f(x)) find a formula in terms of x ,for g^-1(x)

    asked by Blane
  150. Living a Healthy Life

    A child who has to struggle to climb into a chair is confronting a(n) _______ hazard. A. environmental B. biological C. physical D. ergonomic C.

    asked by Amanda
  151. Math Question

    If the angle -1500o is in standard position, state the quadrant in which it's terminal side lies.

    asked by Tamia
  152. Math Help!!!

    . note: remember to show all of the steps that you used to solve the problem. at a halftime show, a marching band marched in formation. the lead drummer started at a point with coordinates (-2,-5) and moved 3 steps up and 1 step right. a. write a rule to

    asked by math help asap
  153. Algebra

    y=25x+500 solve for x solve for y

    asked by karen
  154. Living a Healthy Life

    Which type diapers meet the American Health Association's standards? A. Paper diapers with absorbent gelling materials B. Cotton diapers C. Diapers composed entirely of paper composite D. Recycled diapers A.

    asked by Amanda
  155. mixture problems

    How many gallons of 45% butterfat cream must be mixed with 500 gallons of 3% butterfat milk to obtain a 5% butterfat milk?

    asked by Kendall
  156. Living a Healthy Life

    At what age does exercise begin to result in strength in boys and girls? A. Between ages five and six B. Between ages six and seven C. Between ages three and four D. Between ages one and two B.

    asked by Amanda
  157. physics

    A clock has a second hand whose tip rubs against the inside of the glass cover. If the frictional force between the glass cover and the tip of the second hand is 0.0010 N and the length of the hand is 6.5 cm, what is the minimum torque that must be applied

    asked by Max
  158. Living a Healthy Life

    Which of thefollowing is a suitable toy for a toddler? A. A walker B. A trampoline C. A riding toy D. Powdered clay C.

    asked by Amanda
  159. Chemistry

    A sample of sodium sulfate, Li2SO4, contains 6.78 x 10^23 formula units. How many moles of Li2SO4 are there in the sample? How many moles of Li+ ions are there in the sample?

    asked by Sam
  160. Question

    What are Behavioral Objective for a Hopscotch

    asked by Anonymous
  161. Chemistry

    A sample of toluene, C7H8 has a mass of 74.5 g. How many moles of benzene does it contain? How many molecules does the sample contain? How many carbon atoms does it contain?

    asked by Danny
  162. Physics

    An iron disk has a radius of 0.625 m and a mass of 217 kg. The disk is mounted on its axis so that it is free to spin. How much force is required if the force is applied at a distance 19.5 cm from the axis of rotation?

    asked by Ann
  163. English PLEASE!!!

    A thermostat is a device used to adjust the temperature indoors. Which of the following explanations best interprets the author's intended meaning in the bolded words in following sentence? "The Church was a thermostat that transformed the mores of

    asked by school lover
  164. Living a Healthy Life

    Some child psychologists have concluded that _______ is the strongest predictor of both scholastic and career achievement. A. respect for authority B. inherited intelligence C. emotional well-being D. physical illness C.

    asked by Amanda
  165. Physics

    1. Determine the specific heat of a certain metal if a 450-g sample of it loses 34,500 joules of heat as its temperature drops by 97degC. 2. The temperature of a 55-g sample of a certain metal drops by 113degC as it losses 3,500 J of heat. What is the

    asked by Hershey
  166. Physics

    1. A student lifts his 2.0-kg pet rock 2.8m straight up. He then lets it drop to the ground. Use the Law of Conservation of Energy to calculate how fast the rock will be moving ..... a. half way down b. just before it hits the ground 2. A 65-kg girl is

    asked by Hershey
  167. Chemistry

    A 3.78 g sample of ethanol (C2H5OH) was burned completely in a bomb calorimeter. The temperature of the calorimeter plus the contents increased from 25.6oC to 35.2oC. Knowing that ethanol's heat of combustion is -3600 kJ/mol, calculate the total heat

    asked by Amanda
  168. Physics

    Two workers are sliding 310kg crate across the floor. One worker pushes forward on the crate with a force of 440N while the other pulls in the same direction with a force of 230N using a rope connected to the crate. Both forces are horizontal, and the

    asked by omar
  169. math

    9i / -3+8i

    asked by maria
  170. Physics

    A wheel starts from rest and rotates about its axis with constant angular acceleration. After 8.7s have elapsed, it has rotated through an angle of 20 radians. What is the angular acceleration of the wheel? What is the angular velocity when the time t =

    asked by Ann
  171. Algebra II

    I have some questions regarding syntheetic division. f(x) = x3 - 9x + 3

    asked by Rashad
  172. math

    p= x^2-25x+5000

    asked by monique
  173. Math

    Beginning January 1, Community Hospital had 175 inpatient beds. On June 15, the bed count was increased to 200. The hospital provided 67,106 service days to inpatients and 68,012 service days to discharged patients. In addition, there were 9,601 admissions

    asked by Beth
  174. algebra 2

    Simplify. 1.) 2•√25/26 2.) √a^2/b^5 3.) √a/b √a^2/b^2

    asked by Janet
  175. Math

    Use properties to evaluate the expression. (19 + 28) + 21

    asked by Britney
  176. Vocabulary

    A midpoint of sequence of numbers. A. Mean B. Median C. Mode D. Zero

    asked by Kassie