Solve the problem. Be sure to make a diagram of the situation with all the given information labeled.
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A ship is anchored off a long straight shoreline that runs north and south. From two observation points 14 miles apart on shore, the bearings of the ship are N 32° E and S 50° E. What is the shortest distance from the ship to the shore? Round your answer to the nearest tenth of a mile.
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A. 1.7 mi
B. 7.7 mi
C. 5.7 mi
D. 3.1 mi
E. 2.2 mi
Answer: C
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Graph the following line.Through (-4, 5), m = 0
A. 
B. 
C. 
D. 
Solve the problem.The revenue received from the sale of electric heaters is seasonal, with maximum revenue in the winter. Let the revenue received from the sale of heaters be approximated by R(x) = 380 cos 2?x + 600, where x is time in years, measured from January 1. Find R'(x) for March 1st.
A. -380?
B. 0
C. -380?
D. -380?
A child has an enormous jar in which she has been saving all of her spare change. In order to determine exactly how much money she has in the jar, she dumps all of the coins on the floor and counts them. Under the watchful eye of her mother, she counts 180 pennies, 120 nickels, 100 dimes, and 80 quarters.The sampling proportion in this survey is
A. 100%. B. 180/480. C. 80/480. D. unknown. E. none of these
Solve the problem. Round to the nearest cent.On October 1, the unpaid balance in an account was $158. No payments were made that month. The finance charge rate was 1.6% per month of the average daily balance. Find the finance charge for the month of October.
A. $2.69 B. $2.37 C. $2.53 D. $2.43