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In a certain state, the maximum speed permitted on freeways is 65 mi/h and the minimum speed is 40 mi/h. The fine for violating
1 answer
3,090 views
If a savings fund pays interest at a rate of 6% per year compounded semiannually, how much money invested now will amount to
1 answer
453 views
When the volume control on a stereo system is increased, the voltage across a loudspeaker changes from V1 to V2, and the decibel
1 answer
687 views
A certain department store requires its credit-card customers to pay interest on unpaid bills at the rate of 18% per year
1 answer
2,107 views
List all possible rational zeros of the polynomial and then show that the equation has no rational root.
x^5 − 8x^3 + 6x^2 + x
1 answer
753 views
Find all solutions of the equation.
x^4 + 3x^3 − 13x^2 − 9x + 30 = 0
2 answers
463 views
In 1870 the average ground temperature in Paris was 11.8°C. Since then it has risen at a nearly constant rate, reaching 13.5°C
2 answers
872 views
