Most popular questions and responses by Makaila
  1. Algebra

    Shirley is drawing triangles that have the same area. The base of each triangle varies inversely with the height. What are the possible base and height of a second triangle if the first triangle's base is 12 and its height is 8? Select one: a. 120 and 80

    asked on April 6, 2016
  2. Algebra

    A store is selling two mixtures of coffee beans in one-pound bags. The first mixture has 12 ounces of Sumatra combined with 4 ounces of Celebes Kalossi, and costs $15. The second mixture has 4 ounces of Sumatra and 12 ounces of Celebes Kalossi, and costs

    asked on April 6, 2016
  3. Statistics

    A doctor want to estimate the HDL cholesterol of all 20- to 29- year old females. how many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confindence assuming s=10.5. Suppose the doctor would be content with 90% confidence.

    asked on October 7, 2016
  4. Math

    Pairs of markings a set distance apart are made on highways so that police can detect drivers exceeding the speed limit. Over a fixed distance, the speed R varies inversely with the time T. For one particular pair of markings, R is 60 mph when T is 8

    asked on August 7, 2015
  5. Math

    in a recent year, a single person could expect to pay $4550 in income taxes on an adjusted gross income of $35,000. how much more tax should the person expect to pay if her adjusted gross income increased by $4000, knowing that this would not move her into

    asked on July 24, 2015
  6. Math

    A hotel manager found that his gross receipts for the day, including a 9% sales tax, were $3927.27 . Find the amount of sales tax collected

    asked on July 13, 2015
  7. Math

    What is the volume of a square glass window with a side length of 1 3/4 ft and a width of .08 ft?

    asked on March 4, 2015
  8. math

    suppose 8 out of every 20 students are absent from school less than 5 days a year. Predict how many students would be absent from school less than 5 days a year out of 40,000 students.

    asked on October 14, 2014
  9. Statistics

    Find the minimum sample size n needed to estimate u for the given values of c, s, & E. c=0.98, s=6.5, & E=1.?

    asked on October 7, 2016
  10. Digital Circuits

    which is the primary purpose of a resistor in series with a led being driven by a flip-flop a. Limit voltage b. Limit current c. Limit speed d. Limit power

    asked on May 31, 2015
  11. Math

    For each quadratic function, find the axis of symmetry of its graph. y=3x^2-6x+4

    asked on May 28, 2015