Find the exact value of the expression.tan-1 (-
)
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Perform the indicated operations.0.43 - (-0.23)
A. 0.76 B. 0.2 C. 0.0989 D. 0.66
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
Mathematics
Solve the equation exactly in the complex number system.x3 - 6x2 + x - 6 = 0
A. x = ±1, x = 6 B. x = ±6, x = i C. x = 6, x = ±i D. x = -6, x = ±i
Mathematics
Solve the problem.The regular price of a blanket is $22.95. During a November sale, the blanket was selling for 10% off the regular price. What was the sale price of the blanket? Round to the nearest cent.
A. $20.91 B. $2.55 C. $20.66 D. $2.30
Mathematics