Write 
and 
in trigonometric form and then find their quotient.
?
?
?
A. ?
B. ?
C. ?
D. 
E. ?
Answer: D
Mathematics
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Solve the problem.A lake lies between A and C, and lines AB and DE run north-south. If 
= 7.6 mi, 
= 1.3 mi, and 
= 1.8 mi, how far is it from A to C? Round to the nearest tenth.
A. 11.0 mi B. 8.7 mi C. 5.5 mi D. 10.5 mi
Mathematics
Determine the scalar c so that the vectors v and w are orthogonal or parallel as indicated.v = 
, w = 
; parallel
A. c = - 
B. c = 
C. c = - 27
D. c = 
Mathematics
Solve the problem.A biology experiment required pouring 
gallon of nutrient solution and 
gallon of pure water into a tank. At the end of the experiment, 
gallon of fluid had evaporated. How much fluid remained in the tank?
A. 
gallon(s)
B. 
gallon
C. 
gallons
D. 
gallon
Mathematics
Evaluate the function 
at
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics