rr

Most popular questions and responses by rr
  1. 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
  2. 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
  3. algebra

    how to convert 0.000037 to scientific notation

    asked on May 14, 2012
  4. 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
  5. 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 three-fifths of the second integer. What are the integers?

    asked on September 30, 2013
  6. Science

    The living component of xylem tissue? A. Xylem parenchyma B. Xylem tracheid C. Xylem vessel D. Xylem fibre

    asked on April 2, 2018
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. algebra

    plz solve factor trinomial a^2+10a+16

    asked on May 18, 2012
  13. algebra

    A launched rocket has an altitude, in meters,give n by the polynomial h+vt-4.9t^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
  14. Science

    Silicon is widely than germanium.why? Give scientific reason

    asked on March 31, 2018
  15. 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
  16. math

    A number increased by 2/5 of it becomes 210. what is the number?

    asked on March 12, 2013
  17. 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
  18. algebra

    factor trinomial w^2-15w+56

    asked on May 18, 2012
  19. algebra

    collect like terms and then arrange in descending order. 8x^5 - 7x^9-7x^5+ 8x^9

    asked on May 15, 2012
  20. Science

    Which is the earliest form of human fossil? A.neanderthel man B.homo habilies C.dryopithecus

    asked on March 31, 2018
  21. Math

    One-third 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
  22. algebra

    A black racer snake travels 29.9KM in 13 hours. What is the speed in KM/h?

    asked on June 1, 2012
  23. algebra

    help; factor with wrong answer s^2+10s+25

    asked on May 18, 2012
  24. algebra

    There are n teams in a league and the number of games played is given by the polynomial n^2-n=N. A women's softball league has 12 teams. What is the total number of games to be played?

    asked on May 18, 2012
  25. 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
  26. Science

    What are the steps of evolution of star and sun like star? What's difference

    asked on March 31, 2018
  27. calculus

    how to find surface area of a cylinder with respect to r(radius) and h(height)?

    asked on July 21, 2015
  28. math

    The perimeter of a square is 9. what is the area?

    asked on March 12, 2013
  29. 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
  30. algebra

    add and simplify 2v/v^2-64+v/v-8

    asked on May 31, 2012
  31. algebra

    please solve 5u^8v-6uv^5+6u^8v-5uv^5 collect like terms

    asked on May 15, 2012
  1. Math

    7 5

    posted on June 17, 2019
  2. Science

    As a semiconductor?

    posted on March 31, 2018
  3. chem

    6 minutes and 12 seconds!

    posted on September 9, 2015
  4. math

    37

    posted on April 23, 2015
  5. 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
  6. 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
  7. 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
  8. Chemistry

    A sample of ammonia liberates 5.66 kJ of heat as it solidifies at its melting point

    posted on May 14, 2014
  9. physics

    the answer is zero

    posted on February 3, 2013
  10. 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=314.28x-0.1x^2. What is the total revenue from the sale 0f 135 washing

    posted on May 15, 2012
  11. 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