Use the laws of exponents to simplify. Do not use negative exponents in your answer.(x2/3y-4/5)1/2
A. 
B. 
C. 
D. -x1/3y2/5
Answer: B
Mathematics
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Find the derivative of y.y = ln(sech (9x + 6))
A. tanh (9x + 6)
B. -tanh (9x + 6)
C. 
D. -9 tanh (9x + 6)
Mathematics
Provide an appropriate response.Find the sum of two vectors if one has a direction of 52° and a magnitude of 12 and the other has a direction of 30° and a magnitude of 8.
A. magnitude of 19.65 with a direction of 41° B. magnitude of 19.65 with a direction of 43.2° C. magnitude of 14.42 with a direction of 41° D. magnitude of 19.65 with a direction of 46.8°
Mathematics
Write the exponential equation as an equation involving a logarithm.9x = 81
A. log981 = x B. log819 = x C. log81x = 9 D. logx81 = 9
Mathematics
Find the midpoint of the segment with the given endpoints.
and 
A. 
B. 
C. 
D. 
Mathematics