Mathematics - 15 June 2007

x ^ 2 - 4x

2007-06-15 02:57:19 · 4 answers · asked by Chamillitary22 1

please help with answers/solutions:

1. Park rangers catch, tag, and release 200 deer back into a wildlife refuge. Two weeks later they catch a sample of 150 deer, of which 5 are tagged. Assuming that the ratio of tagged deer in the sample holds for all deer in the refuge, how many deer are there in the park?

2. The term grade is used to describe the inclination of a road. A 7% grade means that for every horizontal distance of 100feet, the road rises or drops 7 feet. A road rises 50 feet vertically over a horizontal distance of 625 feet. Find the grade of the road.

3.The temperature, t, in degrees Celsius, inside the earth is a function of depth below the surface, d, in kilometers. At the surface, the temperature is 20 celsius. THe temperature increases by 10 celsius for each kilometer of depth. what is the temp at 30 km below surface?

4. a car purchased for 12000 has a loss in value of $1250 per year. write an equation that models the value, v of the car after x years. ty

2007-06-15 02:46:21 · 4 answers · asked by jones_reid 1

commpute the area of a triangular sign that is 18 cm hign with an 11 cm base.

2007-06-15 02:07:46 · 8 answers · asked by paula_0088 1

2007-06-15 01:21:54 · 3 answers · asked by Lao John 1

2007-06-15 00:53:57 · 4 answers · asked by krysellejean 1

lim [(e^x)*cos(x) -1 - x ] / [(x^2) + (x^3)]
x--->0


i got the derivative, but i cant substitute 0 into it, else it will be undefined(Im not chuck norris, i cant divide by 0 lol)

2007-06-15 00:27:45 · 3 answers · asked by Anonymous

2007-06-15 00:13:34 · 5 answers · asked by krysellejean 1