Approximate the length using the formula for arc length. Round to the nearest meter.A tree 460 m away subtends an angle of 2°. Find the height of the tree.
A. 32 m
B. 13 m
C. 16 m
D. 35 m
Answer: C
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = - 
i + 
j + k, v = i + j + 2k
A. 2
; - 
i + 
j - 
k
B. 8; 
i - 
j - 
k
C. 8; 
i - 
j + 
k
D. 2
; 
i + 
j - 
k
Mathematics
Multiply the polynomials using a special product formula. Express the answer as a single polynomial in standard form.(x + 12)2
A. x + 144 B. x2 + 144 C. x2 + 24x + 144 D. 144x2 + 24x + 144
Mathematics
The following question(s) refer to a fractal defined by the recursive procedure :
How many line segments appear in step N of the construction?
A. N5 B. 5N C. N D. 5 × N E. none of these
Mathematics
Add or subtract.
+ 
A. 
B. 
C. 
D. - 
Mathematics