The time t (in seconds) that it takes an object dropped from a distance d (in feet) to fall to the ground is given by the formula 
How long will it take a pair of sunglasses to fall to the ground if a sightseer drops them from the top of a 225-foot-tall observation tower?
?
________ seconds
Fill in the blank(s) with the appropriate word(s).
3.75
Mathematics
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Find the limit of the sequence if it converges; otherwise indicate divergence.an = 
A. 0 B. 1 C. ln 8 D. Diverges
Mathematics
Factor completely. If the polynomial cannot be factored, write "prime."8x6 - 10x3 - 12x3 + 15
A. (2x3 - 3)(4x3 - 5) B. (2x6 - 3)(4x - 5) C. (8x3 + 3)(x3 + 5) D. (2x3 + 3)(4x3 + 5)
Mathematics
Compute the unit binormal vector and torsion of the curve. r(t) = 
A. B(t) = 
, ? = 1
B. B(t) = 
, ? = 0
C. B(t) = 
, ? = 0
D. B(t) = 
, ? = 1
Mathematics
Find the angle between the given vectors. Round to the nearest tenth of a degree.u = 2j, v = 8i - 3j
A. -20.6° B. 76.5° C. 134.6° D. 110.6°
Mathematics