Solve the problem.A boat is sailing directly toward a lighthouse that is 120 ft tall. The angular size ? of the lighthouse is the angle formed by the lines from the top and bottom of the lighthouse to the observer on the boat, as shown in the figure. What is the rate of change of the angular size d?/dx when the boat is 350 feet from the lighthouse?
A. -0.00088 rad/ft
B. -0.00877 rad/ft
C. -0.00007 rad/ft
D. 0.00450 rad/ft
Answer: A
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Provide an appropriate response.An insurance policy is a contract between the insurer and the underwriter.
A. True B. False
Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.ln x = 6
A. 1096.633 B. 148.413 C. 130.387 D. 403.429
Add the polynomials. Express your answer in standard form.(4x2 - xy - y2) + (x2 + 9xy + 11y2)
A. 3x2 - 10xy - 12y2 B. 5x2 + 8xy + 10y2 C. 5x2 + 10xy + 12y2 D. 4x2 + 9xy + 11y2
Solve the problem.The expected future population of a small town, which currently has 7900 residents, can be approximated by the formula y = 7900(1.6)-0.3twhere t is the number of years in the future. Find the expected population of the town 40 years in the future.
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