Find the direction angles of the vector. Round to the nearest degree, if necessary.v = -6i - 4j - 12k
A. ? = 118°, ? = 108°, ? = 161°
B. ? = 115°, ? = 107°, ? = 149°
C. ? = 92°, ? = 91°, ? = 94°
D. ? = 117°, ? = 108°, ? = 157°
Answer: B
Mathematics
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A.
B.
C.
D.
E.
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Calculate the derivative of the function. Then find the value of the derivative as specified.
t =3 if r = 
A. 
= 
; 
t =3
= 
B. 
= - 
; 
t =3
= - 
C. 
= 
; 
t =3
= 
D. 
= - 
; 
t =3
= - 
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Subtract.14 - 
A. 
B. 32
C. 4
D. 
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Find the difference. Simplify the result.
- 
A. 
B. 
C. 
D. 
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