math
A lawn sprinkler covers a rectangular pattern of 20ft x 30ft. 1)If the flow rate of the sprinkler is 2.5 gpm, derive a formula for calculating the time (hours) to apply D inches of water over one 20ft x 30ft area. 2)What are the units on the constant?
algebra
solve e^x / 3 = 5^x using logs.
math
A triangle has an angle whose sine is equal to sq rt 2/2. The angle is larger than 52 degrees in measure. Find the EXACT measure (in degrees) of the angle.
Econ more help please
See question below at **** Suppose local govt decides that a tax is the best way to address the inefficiency created by outdoor concerts. Assuming the social cost curve and the private cost curve are parallel to each other, how much does the tax on concerts have to be to achie...
Econ - urgent please help
Suppose local govt decides that a tax is the best way to address the inefficiency created by outdoor concerts. Assuming the social cost curve and the private cost curve are parallel to each other, how much does the tax on concerts have to be to achieve the socially optimal out...
Econ please help
Suppose local govt decides that a tax is the best way to address the inefficiency created by outdoor concerts. Assuming the social cost curve and the private cost curve are parallel to each other, how much does the tax on concerts have to be to achieve the socially optimal out...
algebra
Town has popultion of 5,000.Number of people infected after t days with a disease is N(t) = 5000/1 + 21.7e^-0.4t Find number initially infected find number infected after 12 days
algebra
Pa^t and Pe^rt are two forms of the same exponential function. One would expect to obtain the same answer for f(18). Explain why you may not get the same answer for f(18) in practice.
math - another ? - exponentials
The two formulas f(t) = Pa^t and f(t) = Pe^rt provide two models for the same exponential growth or decay function. How are the exact values of a and r related? (Hint: Find a formula for a as a function of r)
algebra - exponentials
Pa^t and Pe^rt are two forms of the same exponential function. One would expect to obtain the same answer for f(18) (after finding P and a and P and r). Explain why you may not get the same answer for f(18) in practice.
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