francisco
Popular questions and responses by francisco
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 
math
Joe filled a 10cup 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 
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 
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 
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 
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 
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 
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 
Science
Dicot is to two seed leaves as blank is to one seed leaf.
asked on March 27, 2017 
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 
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 
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 
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 
fibers and fabrics
To remove a coffee stain from a cotton shirt, you should
asked on October 15, 2015 
CHEMISTRY
^H FOR CS2+3O>CO2+2SO2
asked on December 17, 2015 
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 
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 
4th grade
i need help with a sentence in future tense (it clins to branches and twigs)
asked on January 26, 2009 
math
9+8log9 (9X)=81
asked on December 6, 2010

math
????
posted on November 27, 2019 
MATH
It seems that I don't know.
posted on February 12, 2018 
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 
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 
Physical Science
Thanks....
posted on February 7, 2018 
Physical Science
7?
posted on February 7, 2018 
Physical Science
thanks
posted on February 6, 2018 
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 
Language Arts
so at least we have a life unlike you coming to search for answers
posted on November 11, 2017 
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 
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 
floral design
What should weddingfloral consultants always do?
posted on October 26, 2015 
math
Thank you
posted on February 11, 2014 
math
648 = 9x ÷9 ÷9 72 = X
posted on February 11, 2014 
4th grade math
8×6×2×1 I think
posted on February 11, 2014 
Economics
it will increase, and then decrease
posted on October 13, 2013