Solve the problem.The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the the intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 3 miles? Round your answer to the nearest unit.
A. 3582 units
B. 3520 units
C. 3539 units
D. 3556 units
Answer: D
You might also like to view...
In business, equipment is often depreciated using the double declining-balance method. In this method, a piece of equipment with a life expectancy of N years, costing $C, will depreciate to a value of $V in n years, where n is given by the formula
?
?
If a computer that cost $39,000 has a life expectancy of 4 years and has depreciated to a value of $15,000, how old is it? Round to the nearest tenth.
?
A. 2.5 years old B. 0.7 years old C. 0.6 years old D. 1.4 years old E. 1.5 years old
Solve the equation by using the square root property. Express any complex numbers using i notation.x2 + 81 = 0
A. x = ± 10i B. x = 9i C. x = -40.5 D. x = ± 9i
Aja made a 20% down payment on a house and was approved for a $185,000 mortgage. Therefore, she should expect her closing costs to be about $3,700 to $12,950.
Answer the following statement true (T) or false (F)
Factor, using the given factor. Assume all variables represent positive real numbers.x-7 - 3x-3; x-7
A. x-7(1 + 3x6) B. x-7(x - 3x5) C. x-7(x - 3x4) D. x-7(1 - 3x4)