Questions Asked on
July 22, 2005

  1. Augmented Matrix

    Perform row operations on the augmented matrix as far as necessary to determine whether the system is independent, dependent, or inconsistent. DO ALL WORK BY HAND. x + 2y + 4z = 6 y + z = 1 x + 3y + 5z =10 If one subtracts the first equation from the last

    asked by GetYourLeash
  2. Word Problem Maximizing A Bonus

    Pauline Wong spends 4 hours selling a used car and 6 hours selling a new car. She works no more than 40 hours per week. In order to receive a bonus, she must sell at least one used car and four new cars each week. In that case, she recives a bonus of

    asked by GetYourLeash
  3. Matrices Word Problem

    The stopping distance of a car traveling 25mph is 61.7 feet, and for a car traveling 35 mph it is 106 feet. The stopping distance in feet can be described by the equation y = ax² +bx, where x is the speed in mph. (a) Find the values of a and b. (b)Use

    asked by GetYourLeash
  4. Math - Standard Deviation

    A General Electric soft white 3-way bulb has an average life of 1200 hours with a standard deviation of 50 hours. Find the probability that the life of one of these bulbs will be between 1150 and 1300 hours. You need to change the times to Z-scores

    asked by GetYourLeash
  5. Astronomy

    1.If you mande a model of the solar system with the Earth. The size of a tennis ball [about 6.5c.m in diameter] How big would your model of the sun be? 2.How far away from the tennis ball Earth would your model Sum be.If you kept the size and distance to

    asked by chuchy
  6. Algebra Functions

    I don't know how to simplify the following functions (I get the asnwer right, but I don't know the steps!) f(x) = 4x^2 - 12x / x^2 + x - 12 Please e-mail me: Katiewallin86@yahoo.c0m if you can help me with a few more problems, too. Thanks so much! The top

    asked by Katie
  7. Word Problem Cost minimization

    Don Garcia needs at least 24 units of vitamin A per day. Each green pill provides 4 units and each red pill provides one unit. Green pills cost 3.5¢ each and red pills cost 1¢ each. How many of each kind of pill should he take to minimize his cost? Green

    asked by GetYourLeash
  8. Algebra

    Given the equation of a line y = 2/5x - 2, the slope and y-intercept are respectively: a. 2, -2/5 b. -2, 2/5 c. 2/5, 2 d. 2/5 , -2 Given the equation of a line y = 2/5x - 2, the slope and y-intercept are respectively: In y=mx + b, b is the y intercept, and

    asked by Lox