Newest questions posted by Jose
  1. math

    Find the equation of the line of best fit for the points (-4,10) (-1,5)(2,-1)(3,-6)(5,-7)
  2. Math

    Micah has a new remotely controlled car that has a circular range with a radius of 30 feet. What is the area of the circular range?
  3. Chemsitry

    A student reacts 0.506 grams of aluminum with excess KOH and H2O according to reaction one from the lab manual.   2Al + 2KOH +6H2O ---> 2K[Al(OH)4]+3H2 Enter your answers in numerical format. How many moles of aluminum was reacted? How many moles of
  4. Chem 1C

    the hydrolysis of sucrose is a part of the digestive process. to investigate how strongly the rate depends on our body temperature, calculate the rate constant for they hydrolysis of sucrose at 35C given that k=1.0 mL/(mol*s) at 37C and that the Ea=108
  5. Statistics

    Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.62 and a standard deviation of 0.43. Using the empirical rule, what percentage of the students have grade point averages that are
  6. Math

    What is the work for the problem 61,125 divided by125
  7. math seriously help me

    Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear
  8. math

    Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear
  9. algebra

    find the periodic payments necessary to accumulate the amount given in a sinking fund. Assume end of period deposits and compounding at the same intervals as deposits. $70,000 in a fund 7% per year, monthly payments for 5 years Thank you your time is
  10. Stoichiometry

  11. Geometry

    At a campground, a rectangular fire pit is 5 feet by 4 feet. What is the area of the largest circular fire that can be made in this fire pit? Use 3.14 for π. Round to the nearest square inch.
  12. Math

    On friday,a cold front came through the city at 8am that dropped the outside temperature at an average rate of 2 degrees every half hour. Which integer represents the change in temperature from 8am to 11am
  13. math

    Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the
  14. math-circles

    The area of two circles are in a ratio of 4:9. If both radii are integers, and r(1) - r(2) = 2, what is the radius of the larger circle?
  15. math

    In pallelogram, ABCD, E is the midpoint of DC, AE intersecs BD at point O, the area of triangle DOE is 12cm^2, what is the area of triangle AOB?
  16. triangles

    In triangle ABC, AB = 12, AC= 9, D is a point on AC, AD = 3. E is a point on AB, so that triangle ADE is similar to ABC, what is the length of AE? (two different answers)
  17. math

    two concentric circle with the ratio of radii as 2:3, what is the ratio of the area? thanks
  18. Math.

    two concentric circle with the ratio of radii as 2:3, what is the ratio of the circumferences
  19. Math

    A marine surveyor uses a rangefinder and a compass to locate a ship and an island in the vicinity of the coast on which she stands. The rangefinder indicates that the island is 379 ft from her position and the ship is 600 ft from her position. Using the​
  20. math

    how many squares are there in a 3x3 geoboard? how many rectangles?
  21. financial math

    Rate: 7% Payments: 360 @ $665.31 Total Interest: $139,511.60 How much will be repaid for this loan? $ 239,511.60239,502.40100,000.00 What percentage of this total is total interest? What will be the average amount per payment for interest? $
  22. College Algebra

    Find the formula for the EXPONENTIAL FUNCTION that satsifies the given conditions. f(0)=8 and f(1)=2.4 f(x)=_____
  23. Social studies

    What were protestants want to true friend and elation church called
  24. math

    Irrational Perimeter and a Rational Area of a rectangle. a can = b can = Or, if it's impossible, explain how. Help me I'm confused.
  25. math

    The length of three line segments are a,b, and c respectively, and a=2/3b c=3/2b then a : c = ?
  26. math

    using two triangle rulers with angles of (30, 60, 90) and (45 , 45, 90) how many angles less than 180 degrees can be drawn?
  27. math

    Two angles are complementary to each other, if the ratio of the two angles is 3:2, then what is the difference of measures in degree of these two angles? please explain :(
  28. maths

    Find the measure of an angle with measure three times the measure of its supplement.
  29. math

    Find the measure of an angle with measure 8 less than the measure of its complement
  30. math

    The solution of x for equation a (bx - c) = d - (x + e) (a > 0 and b > 0) the answer is x = ac + d - e/ab + 1 How?
  31. math

    Find the experimental probability. Sheila drew single marbles from a bag, recorded the outcome, and replaced the marble. In 50 draws, Sheila drew 20 white marbles and 30 black marbles. What is the experimental probability that the next marble will be
  32. english

    In the United States, cell phones are a very popular item. What are all VERBS both "Action" and "Be."
  33. science

    A ball of mass 0.5 kg is released from rest at a height of 30 m. How fast is it going when it hits the ground?
  34. Chemistry

    How many grams of perchloric acid are dissolved into 3.86 L of water, if the pH of the solution is 4.03.
  35. please help

    Two point charges are fixed on the y axis: a negative point charge q1 = -34 μC at y1 = +0.19 m and a positive point charge q2 at y2 = +0.32 m. A third point charge q = +8.9 μC is fixed at the origin. The net electrostatic force exerted on the charge q by
  36. physics

    Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of eight grams of argon is raised by 95 K under conditions of constant pressure. Assuming that argon behaves as an ideal gas, how much heat is required?
  37. physics

    A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 45.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and
  38. math

    How can you write an equation of two test scores 97 and 88
  39. Math

    Marisa says that reflecting a point across the x axis and then reflecting its image across the y-axis will produce the same final image as just reflecting the original point across the line y equals x is this true?
  40. Math

    The smallest package weighed only 1/3 more than 1/2 the weight of the heaviest package. If the two packages combined weighed 100 kilograms, how much did the smaller package weigh?
  41. Physics

    How much work does a 50 kg student to climb 3 meters high stairs
  42. physics

    As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from
  43. Calculus

    I am standing on the roof of a building with a pea shooter, and I shoot a pea up into the air from a height of 80 feet. The pea reaches its maximum height 2 seconds after I shoot, then falls to the ground. Give the position of the pea as a function of time
  44. Statistics

    I have gotten the concept of probability but the following question has really stumped me. Help please. The probability that a tomato seed will germinate is 0.9. Estimate the probability that of 100 randomly selected seeds, at least 86, but no more than 91
  45. math

    there are 5 pounds of apples in one bag. Make a table to show how many pounds of apples are in 6 bags
  46. math

    To date, Jay Ward has xumulative earnings of $ 107,600. This week he is paid $3,000. What is the total amount of Social Security tax for this week? Assume a rate of 6.2% on $110,100 for Social Security and 1.45% for Medicare.
  47. trig

    Find the component form of v and sketch the specified vector operations geometrically, where u = 4i − j, and w = i + 5j. v = −u + w v = ( , )
  48. Ela

    Write each phrase below to make it a plural or singular possessive or plural possessive.the backpacks belonging to the girls,the covers of the bookd
  49. chem

    Please give the complete mechanism for the acid catalyzed addition of methanol to 3 - methylbutene
  50. physics

    A ball is projected upward at time t = 0 s, from a point on a flat roof 10 m above the ground. The ball rises and then falls with insignificant air resistance, missing the roof, and strikes the ground. The initial velocity of the ball is Consider all
  51. physic

    Between the orbits of Mars and Jupiter, several thousand small objects called asteroids move in nearly circular orbits around the Sun. Consider an asteroid that is spherically shaped with radius r and density 3000 kg/m3 . You find yourself on the surface
  52. Math

    x/(x+1) - 2/(x-1)= 1 I have been trying to solve it but I do not know the steps to solve it.
  53. Chemistry

    Can I know the molarity of acid rain?
  54. science

    In the cabin of a jetliner that cruises at 600km/h, a pillow from an overhead rack falls into your lap below since the jetliner is moving so fast, why doesn't the pillow slam into the rear of the compartment when it drops? What is the horizontal speed of
  55. algebra

    whats the difference between a 16 ounce brick and a carpenter?
  56. Math

    How to find the perimeter of a 10 step staircase
  57. math

    Renee is a sales associate at a store. She earns $80 a week plus a 15% commission on her sales. Last week, she sold $200 worth of items. What is the total amount Renee earned for the week? How much did she earn from commission?
  58. trig

    solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b
  59. math

    Suppose a 25-foot ladder is leaning against a wall making a 63 degree angle with the wall. How high up th wall is the end of the ladder?
  60. Chemistry

    Calculate the mass of 5.35 mol of iodine
  61. math

    They're 32 more apples than oranges at a fruitstand. Howany apples and oranges could there be?
  62. Pre-Calculus

    Describe the function resulting from reflecting f(x)=x^3+2x^2-x+5 about the y-axis and then shifting to the left by 4. Is this the same as performing the operations in the reverse order
  63. algebra

    The perimeter of a rectangular piece of plastic is 22 millimeters. The area is 30 square millimeters. What are the dimensions of the piece of plastic?
  64. chemistry

    chemical reactions type?
  65. Intro to Accounting

    Jimenez Enterprises issued 8%, 9-year, $2,486,400 par value bonds that pay interest semiannually on October 1 and April 1. The bonds are dated April 1, 2014, and are issued on that date. The discount rate of interest for such bonds on April 1, 2014, is 8%.
  66. Calculus

    Your firm offers to deliver 250 tables to a dealer, at $160 per table, and to reduce the price per table on the entire order by 50 cents for each additional table over 250. Find the dollar total involved in the largest possible transaction between the
  67. Physics

    An airplane flies 220 km due east, makes a right-angle, and then flies 400 km due north. Find the magnitude of the plane's displacement from it's starting point. Neglect the culrvature of the earth
  68. Pre-Calculus

    Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x^4 − 3x^3 + 29x^2, D(x) = 3x^2 + 13
  69. Pre-Calculus

    Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x4 − 3x3 + 29x2, D(x) = 3x2 + 13
  70. Science

    If the temperature rose from 25C to 45C how many degree Fahrenheit would that be
  71. math

    how many different rectangles having an area of 81 square centimeters can you draw if the length and width have an integral value?
  72. Math

    A student rented a bicycle for a one-time fee of $12.00 and then a charge of $o.85 per day.She paid $28.15 for the use of the bicycle. How many dats did she keep it?
  73. Math

  74. math

    create a function that models In dollars the total payout T2 after a given month × the listedgraph month is X 6 months M2 IS 2¢ 6¢ 8¢ 10¢ 12¢ and T2 is 3¢ 7¢ 13¢ 21¢ 31¢ 43¢ (hint) t2 is just a double transformation of m2
  75. Physics

    If a car engine has a power,P. Write an expression for the time it will take to accelerate from w to 4w. Note that P=wt where t is torque.
  76. Math

    A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel AC=10cm, BD=3 cm and D is the midpoint of AC. Round to the nearest hundredth.
  77. Math

    The curvature of a circle with radius r is defined as Descartes’ formula gives a relationship between the curvatures of the four circles. What are Descartes’ formula and the curvature of a circle? What does the sign of the curvature of a circle mean?
  78. Math

    An organization is planning a dance. The band will cost $400 and advertising costs will be $100. Food will be supplied at $2 per person. a. How many people need to attend the dance in order for the organization to break even if tickets are sold at $7 each?
  79. Math

    The percent grade of a highway is the amount that the highway raises or falls in a given horizontal distance. For example, a highway with a four percent grade rises 0.04 mile for every 1 mile of horizontal distance. a. How many feet does a highway with a
  80. PC

    A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel AC=10cm, BD=3 cm and D is the midpoint of AC. Round to the nearest hundredth.
  81. statistics

    If boys and girls are equally likely to be born, what is the probability that in a randomly selected family of 6 children, there will be at least one boy? (Find the answer using a formula. Round your answer to three decimal places.)
  82. math

    There are 2 leaves along 3 in.of an ivy vine. There are 14 leaves along 15 in. of the same vine. How many leaves are there along 6 in. of the vine?
  83. Math

    Becca wants to make a giant cherry pie to try to break the world record. If she succeeds in making a pie with a 20 foot diameter, what will be the total distance around the pie?
  84. Math

    How many square inches of crust would it take to cover the bottom of a pie dish with a 15 diameter?
  85. Math

    Pam served her apple pie on a 13 inch diameter dish. She wanted to tie a ribbon around the dish to make it a little more festive. How long does the ribbon need to be in order to fit around the dish?
  86. Fitness Topics

    When you massage an exercised muscle, you help to A. increase the efficiency for the removal of wastes. B. decrease the amount of oxygen moving to the muscle. C. decrease the amount of blood moving to the muscle. D. increase its lifting capacity. im going
  87. science

    Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard
  88. math

    Mr. Smith currently produces 45,000 bushels of potatoes a year. He Can increase his harvest by an average rate of 3% annually. How many years will it take until he can produce 50,000 bushels per year?
  89. Math

    Find the angel in degrees required to shoot a cannon a distance of 200 yards. It's speed is 400 mps.
  90. geometry

    Given the equation of the circle (x – 9)2 + y2 = 484 , where is the center of the circle located at?
  91. science

    which of the following is the best course of action when it comes to using natural resources
  92. Math

    Find two numbers the exact answer is between. 6x7381
  93. Precalculus

    So far i have gotten answers that i already knew. I know that 224=16t^2 goes to 14=t^2 but what squared equals 14?
  94. Precalculus

    That is my question, i don't know what t equals when 224=16t^2
  95. Precalculus

    A ball is dropped from a cliff that is 224 feet high. The distance S (in feet) that it falls in t seconds is given by the formula S=16t^2. How many seconds (to tenths) will it take for the ball to hit the ground?
  96. english

    how do you use atlas in more than one
  97. tax

    Business Investigation Expenditures. During January and February of the current year, Big Bang LLC incurs $3,000 in travel, feasibility studies, and legal expenses to investigate the feasibility of opening a new entertainment gallery in one of the new
  98. pcc

    A volume of 40.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 21.7mL of 1.50 M H2SO4 was needed? The equation is
  99. math

    What is the unit rate? 1500 meters in 6 seconds?
  100. finance

    Based on the following information, calculate the coefficient of variation and select the best investment based on the risk/reward relationship. Std Dev. Exp. Return Company A 10.4 15.2 Company B 14.6 22.9


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