vivi
Popular questions and responses by vivi
Math
Holly is flipping a coin and pulling a marble from a bag. There are 4 white marbles, 2 blue marbles, and 5 green marbles, all of the same size, in the bag. What is the probability that the coin lands on heads and she pulls a green marble from the bag?
asked on May 6, 2013 
Math
A number cube is rolled 360 times and the results are recorded as follows: 41 ones, 54 twos, 62 threes, 75 fours, 33 fives, and 95 sixes. What is the experimental probability of rolling a two or a three?
asked on February 25, 2019 
4th grade
IN A TUG OF WAR, 5 DONKEYS ARE EXACTLY EQUAL TO 2 ELEPHANTS. IN ANOTHER TUG OF WAR, 3 ELEPHANTS ARE EQUAL TO 1 CAR. WHICH TEAM SHOULD WIN IF A CAR AND 3 DONKEYS ARE MATCHED AGAINST 4 ELEPHANTS?
asked on November 14, 2009 
Calculus
The concentration of a drug in a patient's bloodstream t hours after it is taken after it is taken is given by C(t) = 0.016t/(t+2)^2 mg/cm^3 Find the maximum concentration of the drug and the time at which it occurs.
asked on February 13, 2013 
Calculus
The concentration of a drug in a patient's bloodstream t hours after it is taken after it is taken is given by C(t) = 0.016t/(t+2)^2 mg/cm^3 Find the maximum concentration of the drug and the time at which it occurs.
asked on February 13, 2013 
Math
A drawer contains 2 red socks, 3 white socks, and 3 blue socks. Without looking, you draw out a sock, return it, and draw out a second sock. What is the probability that the first sock is blue and the second sock is red?
asked on February 25, 2019 
4th grade
On the average your heart beats about 72 times per minute. At this rate, about how many times will it beat: a) in a 30day month; b) in a year; c)in your lifetime, if you live to 72 years of age?
asked on November 14, 2009 
science
Actionreaction forces do not cancel each other out because _____. they are not equal they act in opposite directions they act on different objects inertia prevents one object from moving
asked on February 21, 2019 
Geometry
What is the value of x if it’s a 38 degree triangle and two sides of 21
asked on February 13, 2020 
Calculus
Water is draining at a rate of 2 cubic feet per minute from the bottom of a conically shaped storage tank of overall height 6 feet and radius 2 feet . How fast is the height of water in the tank changing when 8 cubic feet of water remain the the tank?
asked on February 13, 2013 
math
The edge of a cube is increasing at a rate of .05 cm/s. In terms of the side of the cube, s, what is the rate of change of the volume of the cube?
asked on November 12, 2008 
Calculus
Consider a box with a square base of side length s and height h. If the sum of the length, width, and height of the the box is 120 inches, what is the maximum possible volume? Justify your answer.
asked on February 13, 2013 
4th grade
MY DAUGTHER WILL BE 10 YEARS NEXT WEEK AND THE HOMEWORK SAID: A NORMAL PERSON BLINKS ABOUT 25 TIMES PER MINUTE WHEN AWAKE. A) HOW OLD WILL YOU BE ON YOUR NEXT BIRTHDAY; B) TO THE NEAREST MILLION, HOW MANY TIMES WILL YOU HAVE BLINKED ON YOUR NEXT BIRTHDAY?.
asked on November 21, 2009 
math
Thomas is playing TicTacToe with a computer. It is the computer's turn to place an "x" on the board. If the computer makes its moves at random in the open spaces, what is the chance it will win on this move?
asked on November 21, 2009 
physics
A 1.6 N loop of wire is hung in a magnetic field as shown. If the spring scale reads 0.60 N when a current of 1.0 A passes through the loop what is the magnitude and direction of the magnetic field?
asked on May 22, 2013 
Math
A road worker holds a flag in position R with an out strech arm. He swings the flag downward and it forms angle of 30degrees with the ground P. His shoe Q is 2,5 away from P. His head is 24cm above his shoulder. calculate the height of the man
asked on May 2, 2013 
SS
What are two important unifying forces in central asia? HELP ME PLEASE!!!
asked on January 16, 2014 
Calculus
Car A traveling southward towards Point P at 45 mi/hr. Car B is traveling east away from P at 30mi/hr. AT the instant when the distance AP is 60 mi and PB is 80 mi, what is the rate of change of distance AB?
asked on February 13, 2013 
math
Roberto ate 3 pieces of a pizza and them felt that he should pay 1/4 of the cost because that's the fraction he ate. How many pieces was the pizza cut into?
asked on November 21, 2009 
government
This is a quote from an essay on “Liberty” by John Stuart Mills. “The peculiar evil of silencing the expression of opinion is that it is robbing the human race. If the opinion is rights, they are deprived of the opportunity for exchanging error for
asked on November 9, 2008 
us history
I need to do a thesis on a latepresent American history about anything. I can't think of something that will be easy and easily researched. Any ideas?
asked on June 3, 2011 
government
Today "freedom of speech" is limited in interest of public safety by the clear and present danger test. do you feel this is a good standard?
asked on November 9, 2008 
math
Roberto ate 3 pieces of a pizza and them felt that he should pay 1/4 of the cost because that's the fraction he ate. How many pieces was the pizza cut into?
asked on November 21, 2009

algebra
Rhonda's age decreased by 16 is 47 .
posted on July 7, 2017 
math
this is soooo stupid i need help not the quistion
posted on November 8, 2015 
Need help by tonite FINANCE
1.40
posted on March 3, 2015 
geometry
27.5
posted on September 24, 2014 
finance
324,000
posted on August 24, 2014 
Physics
69.96
posted on October 23, 2011 
math
The lions ate up all the prophets
posted on May 5, 2010