Friday
December 6, 2013

# Posts by Angel

Total # Posts: 815

math
If C dollars are deposited in an account paying r percent annual interest, approximate the amount in the account after X years if c=\$250, r=2.4% and x=23 years?

math
The population P in 1995 for a state is given along with r, its annual percentage3 rate of a continuous growth. P=16 millions, r=1.2% Write the formula f(x) =Pe^yx, where r is in a decimal notation, that models the population in millions x years in 1995.

math
In 2000 the population of a state was 5 million and growing continuously at a rate of 3.4% per year. a) Write a function that models the state’s population in millions x years after 200. b) Graph f in 0,10,1 by 4,7,1 c) Estimate the state’s population in 2007.

math
Biologist have have found that the weight W of a bird and the length L of it’s wing span are related by L=kW1/3, where k is a constant. The following list L and W for one species of bird. What is the value of k? W kilograms0.1 0.4 0.8 1.1 L meters 0.399 0.634 0.798 0.888

math
The total hang time T in seconds, is given by T(h)=^h/2. Where h is the maximum height. If a person jumps 6 ft off the ground, determine for how many seconds the person is in the air.

math
find function values f(x)=9x^2+10x-8

word problem
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 80 feet of fence? What should the dimensions of the garden be to give the area?

Algebra
For what values of x is x/[x(3x-4)] undefined?

Physics
Light falls on a double slit with slit separation of 2.19 × 10 −6 m, and the ﬁrst bright fringe is seen at an angle of 12.7 ◦ relative to the central maximum. What is the wavelength of the light? Answer in units of nm Can the person post the steps and ...

Physics
It says incorrect. Can you explain the process?

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