Solve the problem.Water is falling on a surface, wetting a circular area that is expanding at a rate of 
How fast is the radius of the wetted area expanding when the radius is 
(Round your answer to four decimal places.)
A. 0.0279 mm/s
B. 71.6283 mm/s
C. 0.0140 mm/s
D. 0.0877 mm/s
Answer: C
Mathematics
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Provide an appropriate response.Construct a perpendicular from P to the line r.
What will be an ideal response?
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Compute the unit binormal vector and torsion of the curve. r(t) = 
A. B(t) = 
, ? = 0
B. B(t) = 
, ? = 1
C. B(t) = 
, ? = 0
D. B(t) = 
, ? = 1
Mathematics
Use unit ratios or conversion factors to change to the units indicated. Round to the nearest tenth, if necessary.199 g to ounces
A. 5,641.7 oz B. 7.0 oz C. 89.6 oz D. 69.7 oz
Mathematics
Solve the equation using the multiplication principle.-2a = 4
A. -6 B. -2 C. 6 D. 1
Mathematics