Andy G

Most popular questions and responses by Andy G
  1. Pre-Calc

    A page that is x inches wide and y inches high contains 30 square inches of print. The top and bottom margins are 2 inches deep, and the margins on each side are 2 inches wide. a. draw a diagram that gives a visul representation of the problem. b. show

    asked on January 22, 2014
  2. Pre-Calc

    The game commission introduces 100 deer into newly acquired state game lands. the population N of the herd is modeled by N=(20(5+3t))/1+0.04t t>/=0 where t is the time in years a. find the population when t=5, t=10, and t=25 b. what is the limiting size of

    asked on January 22, 2014
  3. Pre-Calc

    The concentration C of a chemical in the bloodstream t hours after injection into muscle tissue is C=(3t+t)/(t^3+50) a. determine the horizontal asymptote of the function and interpret its meaning in the context of the problem. b. use a graphing utility to

    asked on January 22, 2014
  4. precalc

    The wheels of a car have a radius of 11 inches and are rotating at 600 revolutions per minute, find the speed of car in mileage per hour.

    asked on April 29, 2014
  5. in desperate need of help, PRECALC

    a driver averaged 50 miles per hour on the round trip between akron, oh and Columbus, oh, 100 miles away. The average speeds for going and returning were x and y miles per hour, respectively. a. show that y=25x/x-25 b. determine the vertical and horizontal

    asked on January 23, 2014
  6. precalc

    A celing fan with 16 inch blades rotates at 45 revolutions per minute. Find angular speed of fan in radians per minute. Find linear speed of the tips of blades in inches per minute.

    asked on April 29, 2014
  7. Pre-Calc

    A company that produces portable cassette players estimates that the profit P (in dollars) for selling a particular model is P=-76x^3+4830x^2-320000, 0 is less than or equal to x is less than or equal to 50, where x is the ad expense (in tens of thousands

    asked on January 22, 2014
  8. PreCalculus

    The half life of Carbon-14 is 5730 years. a. find the rule of the function that gives the amount remaining from an initial quantity of 100 milligrams of carbon14 after t years. b. the burial cloth of an egyptian mummy i sestimated to contain 59% of the

    asked on March 17, 2014
  9. Precalculus

    a culture starts with 10000 and the number doubles every 40 mins. a. find the function that models the number of bacteria at time t.

    asked on March 17, 2014
  10. Pre-calc

    a driver averaged 50 miles per hour on the round trip between akron, oh and Columbus, oh, 100 miles away. The average speeds for going and returning were x and y miles per hour, respectively. a. show that y=25x/x-25 b. determine the vertical and horizontal

    asked on January 23, 2014
  11. Pre-Calc)

    a piece of rectangular sheet metal is 20 in wide. It's to be made into rain gutter by turning the edges to form parallel sides. Let x represent the length of each of parallel sides. a. give restrictions on x. b. determine a function of A that gives the

    asked on January 14, 2014
  12. Pre-Calc

    ball thrown vertically upward with an initial velocity of 80 ft per second. The distance s(in ft) of the ball from the ground after t seconds is s=80t-16t^2. a. draw the illustration. b. for what time interval is ball more than 96 ft above ground? c.

    asked on January 14, 2014
  13. Pre-Calc

    An open box with a volume of 1500cm^3 is to be constructed by taking a piece of cardboard of 20 cm by 40 cm, cutting squares of sides length x cm from each corner and folding up the sides. Show that this can be done in two different ways, and find exact

    asked on January 14, 2014
  14. Uninhibited Growth

    In 1992, Chad and Denmark each had a population of about 5.2 million. However, the relative growth rate for Chad was 2.5% per year, which Denmark was 0.1% per year. a. assuming exponential growth and the given growth rate, make projections for the

    asked on March 17, 2014
  15. Pre-Calc

    a driver averaged 50 miles per hour on the round trip between akron, oh and Columbus, oh, 100 miles away. The average speeds for going and returning were x and y miles per hour, respectively. a. show that y=25x/x-25 b. determine the vertical and horizontal

    asked on January 22, 2014
  16. PreCalc

    A weekly census of the tree frog in a park is given week population 1 18 2 54 3 162 4 486 5 1458 6 4374 a. find the function of the form f(x)=Pa^x that describes the frog population at time x weeks. b. what's the growth factor in this situation? (that is,

    asked on March 17, 2014
  17. Pre-Calc

    One campus of HCC has plans to construct rectangular parking lot on land bordered on one side by a highway. There are 640 ft of fencing available to fence the other sides. Let x represent the length of each of the two parallel sides of fencing. a. draw the

    asked on January 14, 2014
  18. Pre-Calc

    Consider the following table, which gives the winning Olympic pole vaults in the 20th century. Year Gold Medalists Height(ft) 1900 Irving Baxter 10.83 1904 Charles Dvorak 11.84 1908 A. Gilbert 12.17 1912 harry Babcock 12.96 1920 Frank Ross 13.42 1924 Lee

    asked on January 14, 2014
  19. Pre-Calc

    The attendance A (in millions) at NCAA womens college basketball games for the years 1994 through 2000 is shown in the table, where t represents the year, with t=4 corresponding to 1994. year t attendance a 4 4.557 5 4.962 6 5.234 7 6.734 8 7.387 9 8.698

    asked on January 22, 2014
  20. Pre-Calc

    A wire 100 centimeters in length is cut into two separate pieces (not necessarily equal). ON epiece is bent to form a square and the other to form a circle. Let x equal the length of the wire used to form the square. a. Write the function that represents

    asked on January 22, 2014
  21. ASTRONOMY

    Good evening all, I am working on a PowerPoint presentation for my Astronomy class about planet Earth - my question is: What is Earth's brightest apparent magnitude (if it has one)? I have searched every reliable source I know of (and that I come across),

    asked on November 7, 2014
  22. precalc

    Find the area of a sector and arc length whose central angle is 0.5 radians and a radius of 10 inches.

    asked on April 29, 2014
  23. uninhibited growth

    In 1992, Chad and Denmark each had a population of about 5.2 million. However, the relative groth reate for Chad was 2.5% per year and Denmark was 0.1% per year. a. assuming that exponential groth and the given groth rate, make projections for the

    asked on March 17, 2014
  24. interest

    In a savings account, a principal of $1000 is deposited at 5% per annum. In the second account a principal of $500 is deposited at 10% per annum. Both accounts are compounded continuously. a. estimate the doubling time for each

    asked on March 17, 2014
  25. to REINY

    you have been of much help tonight, I truly appreciate that. I can also, honestly, say that I can retrace my steps and explain how I arrived at the answer after your detailed explanations. Thank you very much. Hope to one day help someone as you have

    asked on January 23, 2014
  26. precalc

    Memphis and New Orleans are approximately on the same meridian. Memphis has a lattitude of 35 degrees north and New Orleans has a lattitude of 30 degrees north. Find distance between them, assuming radius of Earth is 3960 miles.

    asked on April 29, 2014
  27. Precalculus

    The population of the US in 1850 was 23191876. In 1900, the population was 62947714. a. assuming that the population grew exponentially, compute the grownth constant. b. assuming continued growth at a constant rate, predict the population in 1950.

    asked on March 17, 2014