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Most popular questions and responses by rr
Physics
The speed time graph shows the motion of a car over a period of 40 seconds. a. describe the motion of the car between: 1.) O and A  The car is traveling at constant speed from 0 to 20 m/s. 2.) A and B  The car is at rest for 20 seconds. 3.) B and C  The
asked on February 5, 2013 
Physics
The speed time graph shows the motion of a car over a period of 40 seconds. a. describe the motion of the car between: 1.) O and A  The car is traveling at constant speed from 0 to 20 m/s. 2.) A and B  The car is at rest for 20 seconds. 3.) B and C  The
asked on February 5, 2013 
algebra
how to convert 0.000037 to scientific notation
asked on May 14, 2012 
algebra
The product of the page numbers on two facing pages of a book is 110. Find the page numbers. the page numbers are:
asked on May 18, 2012 
la sallle
There are 3 consecutive even integers such that the quotient obtained by dividing twice the largest integer by the smallest integer is three less than threefifths of the second integer. What are the integers?
asked on September 30, 2013 
Science
The living component of xylem tissue? A. Xylem parenchyma B. Xylem tracheid C. Xylem vessel D. Xylem fibre
asked on April 2, 2018 
Physics
The distance time graph shows a cart moving at a straight path. a. Describe the speed of the cart between: 1.) A and B  The cart is moving with constant speed for 10 seconds and it is now at rest for 20 seconds. 2.) B and C  The cart at rest for 20
asked on February 5, 2013 
algebra
It takes 4hr for 8 cooks to prepare food for a wedding rehearsal dinner. How long will it take 7 cooks to prepare the dinner.
asked on June 1, 2012 
algebra.
A rectangular is six times as long as it is wide. If the area is 54 ft^2, find the length and the width of the table.
asked on May 18, 2012 
food
at a cocktail party, you can expect the average person to eat how many hors d'oeurves in two and a half hours?
asked on December 10, 2009 
algebra
19cm^3 of a normal specimen of human blood contains 1.2 of hemoglobin. How many grams does 17cm^3 of the same blood contain?
asked on June 1, 2012 
algebra
plz solve factor trinomial a^2+10a+16
asked on May 18, 2012 
algebra
A launched rocket has an altitude, in meters,give n by the polynomial h+vt4.9t^2, where h is the height, in meters, from which the rocket is airborne. If a rocket is launched from the top of the tower 90 meters high with an initial upward speed of 50
asked on May 15, 2012 
Science
Silicon is widely than germanium.why? Give scientific reason
asked on March 31, 2018 
Geometry
Trying to find the scale for a 77 centimeter by 53 centimeter painting to fit on a 8.5 by 11 inch paper. Please show me how
asked on February 2, 2014 
math
A number increased by 2/5 of it becomes 210. what is the number?
asked on March 12, 2013 
algebra
Suppose a market research company finds that at a price of p=$25,they would sell x=56 tiles each month. If they lower the price to p=$20, then more people would purchase the tile, and they can expect to sell x=66 tiles in a month's time. Find the equation
asked on May 21, 2012 
algebra
factor trinomial w^215w+56
asked on May 18, 2012 
algebra
collect like terms and then arrange in descending order. 8x^5  7x^97x^5+ 8x^9
asked on May 15, 2012 
Science
Which is the earliest form of human fossil? A.neanderthel man B.homo habilies C.dryopithecus
asked on March 31, 2018 
Math
Onethird of Derick's age two years ago is equal to a quarter of his age four years from now. How old is he now? Please provide the following: Representation Equation Solution Answer Checking
asked on March 9, 2013 
algebra
A black racer snake travels 29.9KM in 13 hours. What is the speed in KM/h?
asked on June 1, 2012 
algebra
help; factor with wrong answer s^2+10s+25
asked on May 18, 2012 
algebra
There are n teams in a league and the number of games played is given by the polynomial n^2n=N. A women's softball league has 12 teams. What is the total number of games to be played?
asked on May 18, 2012 
math
The mass of Mars is about 421x10^20 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Mars is the sun? Give answer in scientific notation. The mass of the sun is about....times the mass of mars.
asked on May 14, 2012 
Science
What are the steps of evolution of star and sun like star? What's difference
asked on March 31, 2018 
calculus
how to find surface area of a cylinder with respect to r(radius) and h(height)?
asked on July 21, 2015 
math
The perimeter of a square is 9. what is the area?
asked on March 12, 2013 
algebra
The number N of aluminum cans used each year varies directly as the number of people P using the cans. If 54 people use 19,926 cans in one year, how many cans ae used in a city which has a population of 1,485,000
asked on June 3, 2012 
algebra
add and simplify 2v/v^264+v/v8
asked on May 31, 2012 
algebra
please solve 5u^8v6uv^5+6u^8v5uv^5 collect like terms
asked on May 15, 2012

Math
7 5
posted on June 17, 2019 
Science
As a semiconductor?
posted on March 31, 2018 
chem
6 minutes and 12 seconds!
posted on September 9, 2015 
math
37
posted on April 23, 2015 
physics
Convert the velocity (80m/s) to accleration using Vf^2= Vi^2 + 2ad. After you find your accleration substitue that accleration value into Fnet = ma.
posted on April 23, 2015 
physics
If the system is set in motion with m2 moving downward, what will be the acceleration of the system?
posted on March 23, 2015 
math
20x(2) + 45x = $510 40x + 45x =$510 85x / 85 = $510/85 x = 6 She sold twice as many small than large. So, small = 2(6) which equals 12 20(12) + 45(6) = $510 240 + 270 = $510
posted on July 9, 2014 
Chemistry
A sample of ammonia liberates 5.66 kJ of heat as it solidifies at its melting point
posted on May 14, 2014 
physics
the answer is zero
posted on February 3, 2013 
algebra
THE total revenue is the amount of money tsken by a business. Appliance firm determines that when it sells y washing machine, the total revenue R in dollars is given by the polynomial R=314.28x0.1x^2. What is the total revenue from the sale 0f 135 washing
posted on May 15, 2012 
Watershed?
a. Natural: The Santa Clara Valley: rain and irrigation flows over the land surface and then to the San Francisco Bay b. Manmade: The area one lives in: runoff from your home, yard and neighborhood flows into a creek. like zomg finallyyy xDD
posted on January 26, 2009