Popular questions and responses by francisco
  1. Statistics

    The mean grade in this class last semester was 78.3, and the variance was 49 . The distribution of grades was unimodal and symmetrical. Using this information determine the probability that “Joe”, a random student you know nothing about, other than the

    asked on February 25, 2016
  2. math

    Joe filled a 10-cup watering can with water. He then poured some of the water on his tomato plants. How can Joe find out how much water he used for his tomato plants?

    asked on November 27, 2019
  3. Physical Science

    A camcorder has a power rating of 16 watts. If the output voltage from its battery is 4 volts, what current does it use?

    asked on February 7, 2018
  4. physical

    A car traveling at 28 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?

    asked on March 13, 2018
  5. Physical Science

    The law of reflection states that if the angle of incidence is 7 degrees, the angle of reflection is ___ degrees.

    asked on February 7, 2018
  6. Physical Science

    A clothes dryer uses about 2 amps of current from a 240 volt line. How much power does it use?

    asked on February 7, 2018
  7. Physics

    On a particular airplane wing, air flows over the upper surface with a speed of 115 m/s and along the bottom surface with a speed of 90 m/s during flight. If the area of the wing is 140 m^2, what is the lift force on the wing? Air density is 1.29 kg/m3.

    asked on January 27, 2013
  8. Physical Science

    What is the wavelength of an earthquake wave if it has a speed of 8 km/s and a frequency of 8 Hz?

    asked on February 6, 2018
  9. Science

    Dicot is to two seed leaves as blank is to one seed leaf.

    asked on March 27, 2017
  10. Physics

    The modern Boeing 747 passenger jet airplane cruises at a speed up to 900 km/hr, at an altitude of 11,000 m. The cabin pressure is maintained equivalent to the atmospheric pressure at an altitude of 2,000 m. This is called the "cabin altitude". The

    asked on January 27, 2013
  11. physics

    A car traveling in a straight line has a velocity of 3.19 m/s at some instant. After 5.4 s, its velocity is 12 m/s. What is its average acceleration in this time interval?

    asked on September 29, 2014
  12. math

    A pole 12 feet tall casts a shadow 9 feet long. How tall is a tree that casts a shadow 54 feet long?

    asked on February 11, 2014
  13. calculus

    The radius of a right circular cylinder is given by sqr( t + 6) and its height is 1/6 sqr(t) , where t is time in seconds and the dimensions are in inches. Find the rate of change of the volume with respect to time.

    asked on February 23, 2016
  14. fibers and fabrics

    To remove a coffee stain from a cotton shirt, you should

    asked on October 15, 2015

    ^H FOR CS2+3O>CO2+2SO2

    asked on December 17, 2015
  16. Algebra

    how to find th equation that passes though (1,3) and (8,5) is there a formula to find the answer>

    asked on January 20, 2015
  17. science/physics

    A 230kg ball moving at velocity of 25m/s collides with a 420 kg ball that is not moving. What is the final velocity after contact

    asked on February 5, 2012
  18. 4th grade

    i need help with a sentence in future tense (it clins to branches and twigs)

    asked on January 26, 2009
  19. math

    9+8log9 (9X)=81

    asked on December 6, 2010
  1. math


    posted on November 27, 2019
  2. MATH

    It seems that I don't know.

    posted on February 12, 2018
  3. math fractions

    First, you find the least common multiple for 3,6, and 12. Then, you put the 12 as the denominator and divide by the original fractions 3/12, 1/6, and 1/3.

    posted on February 12, 2018
  4. Physical Science

    A 1.5m wire carries a 9 A current when a potential difference of 89 V is applied. What is the resistance of the wire? The current in a hair dryer measures 10 amps. The resistance of the hair dryer is 8 ohms. What is the voltage?

    posted on February 7, 2018
  5. Physical Science


    posted on February 7, 2018
  6. Physical Science


    posted on February 7, 2018
  7. Physical Science


    posted on February 6, 2018
  8. Language Arts

    also your the one acting like you know anything so don't blame it one us if were cussing

    posted on November 11, 2017
  9. Language Arts

    so at least we have a life unlike you coming to search for answers

    posted on November 11, 2017
  10. Language Arts

    Hey baby cakes stop acting the solution to this problem plus u shut up cause you stupid coming to a website for answers so be judging us cause were cursing

    posted on November 11, 2017
  11. help please english

    see like kitti b she put something wrong on number 8 put light as the emotion of the character its supposed to be cheerful

    posted on November 4, 2017
  12. floral design

    What should wedding-floral consultants always do?

    posted on October 26, 2015
  13. math

    Thank you

    posted on February 11, 2014
  14. math

    648 = 9x ÷9 ÷9 72 = X

    posted on February 11, 2014
  15. 4th grade math

    8×6×2×1 I think

    posted on February 11, 2014
  16. Economics

    it will increase, and then decrease

    posted on October 13, 2013