Evaluate.tan-1 
A. 
B. - 
C. 
D. - 
Answer: B
Mathematics
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Find the mass of the wire that lies along the curve r and has density ?.r(t) = 10i + (7 - 4t)j + 3tk, 0 ? t ? 2? ; ? = 8(1 + sin 4t)
A. 16? units B. 80? units C. 20 + 80? units D. 40 + 80? units
Mathematics
Decide where the first digit in the quotient would be located. Then without finishing the division, determine which of the three choices is the correct answer.
A. 41,610 B. 4161 C. 416
Mathematics
From the given list, identify the improper fractions.
, 
, 
, 
, 
A. 
, 
B. 
, 
, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
Mathematics
Identify the equation as a parabola, circle, ellipse, or hyperbola.4x2 = 16y2 + 64
A. Hyperbola B. Parabola C. Ellipse D. Circle
Mathematics