Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Simplify. Assume that all radicands are nonnegative.
A. sin x - cos x
B. cos x 
C. cos x - cot x
D. 
Mathematics
Find the reference angle for the given angle.42°
A. 42° B. 132° C. 48° D. 138°
Mathematics
Find the greatest common factor of the terms.21m4, 189m7, 441m5
A. 3969m3 B. 21m4 C. 189m4 D. 21m3
Mathematics
Find the slope and y-intercept of the line.6x + y = -3
A. slope = 6; y-intercept = -3
B. slope = - 2; y-intercept = - 
C. slope = - 
; y-intercept = - 
D. slope = -6; y-intercept = -3
Mathematics