Solve the problem.A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 105 feet downstream and sights point B on the opposite bank to determine that ? = 50° (see figure). How wide is the river (round to the nearest foot)? 
A. 125 ft
B. 80 ft
C. 163 ft
D. 88 ft
Answer: A
Mathematics
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Write as a single logarithm.6 logb y + 8 logb z
A. 14 logb yz B. logb (yz)14 C. 48 logb yz D. logb y6z8
Mathematics
Identify the coordinates of each point in the graph.
A. (5, 2); (4, -6) B. (5, 2); (-6, 4) C. (2, 26); (4, -6) D. (5, 4); (2, 4)
Mathematics
Solve the problem.How many liters of 80% hydrochloric acid must be mixed with 40% hydrochloric acid to get 15 liters of 65% hydrochloric acid? Write your answer rounded to three decimals.
A. 4.688 L B. 8 L C. 9.375 L D. 3.125 L
Mathematics
Complete the following proof using the statements and reasons found below
Mathematics