Simplify.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Simplify the given expression using the definition for negative exponents. Assume that all variables represent nonzero numbers.
A. -3h9 B. -16h10 C. -16h9 D. 3h10
Mathematics
Use the given information to find the exact value.tan A = 
, ? < A < 
; cos B = - 
, 
< B < ?
Find tan (A + B).
A. - 
B. - 
C. - 
D. 
Mathematics
Approximate the square root. Round the square root to the nearest thousandth.
A. 25.461 B. 25.453 C. 648.000 D. 25.456
Mathematics
Write a matrix equation equivalent to the system of equations. 3x + 7y = -4-4x - 2y = -4
A. 
=
B.
  = |
C.
=
D.
= 
Mathematics