Find the exact value by using a sum or difference identity.sin (190° - 70°)
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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Find the area of the shaded region.
A. 1.39 B. 1.69 C. 1.25 D. 1.50
Mathematics
Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = -i + 4j, w = 2i - 3j
A. 160.3° B. 63.4° C. 70.3° D. 0.9°
Mathematics
Solve the problem.A marina owner wishes to estimate a linear function that relates boat length in feet and its draft (depth of boat below water line) in feet. He collects the following data. Let boat length represent the independent variable and draft represent the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the draft for a boat 60 ft in length (to the nearest tenth)? 
A. 10.5 B. 9.7 C. 10.3 D. 15.7
Mathematics
Solve.
+ 
= 6
A. 2 B. 24 C. 0 D. 1
Mathematics