# Andy G

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

2. ## 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

3. ## 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

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.

5. ## 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

6. ## 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

7. ## 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

8. ## 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

9. ## 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),

10. ## 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.

11. ## 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.

12. ## precalc

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

13. ## 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,

14. ## 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

15. ## 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

16. ## 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.

17. ## 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

18. ## 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.

19. ## 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

20. ## 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

21. ## 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

22. ## 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

23. ## 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

24. ## 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

25. ## 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.