In 1979, the price of electricity was $0.05 per kilowatt-hour. the price of electricity has increased at a rate of approximately 2.05% annually. if t is the number of years after 1979, create the equation that can be used to determine how many years it will take for the price per kilowatt-hour to reach $0.10. fill in the values of a, b, and c for this situation. do not include dollar signs in the response.

The equation that can be used to determine how many years it will take for the price per kilowatt-hour to reach $0.10 is and by solving this equation the value of 't' is 34.16.

Given :

From the given data the equation to determine how many years it will take for the price per kilowatt-hour to reach $0.10 is obtained as:

Now, divide the above equation by 0.05 from both sides.

Now, take the log on both sides in the above equation.

Now, divide both sides by log(1.0205) in the above equation.

t = 34.16

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hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb