For the given Hindu-Arabic numeral, write an equivalent numeral in the indicated system.363; Egyptian
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the principal unit normal vector N for the curve r(t).r(t) = (9t sin t + 9 cos t)i + (9t cos t - 9 sin t))k
A. N = - 
(cos t)i - 
(sin t)k
B. N = (cos t)i - (sin t)k
C. N = (-sin t)i - (cos t)k
D. N = (sin t)i + (cos t)k
Mathematics
Find an equation for the line with the given properties.Perpendicular to the line 5x + 2y = -23; containing the point (-5, -1)
A. 5x - 2 = 5 B. -2x + 5y = 5 C. -2x - 5y = 5 D. -5x - 2y = -23
Mathematics
Answer the question.For f(x) = x2 - 81 and g(x) = 2x + 3, what is the domain of g?f?
A. 
B. 
x ? - 
C. 
x ? - 
D. All real numbers
Mathematics
Write decimal notation.3452
A. 3452.00152439 B. 3452.152439 C. 3453.52439 D. 3452.0152439
Mathematics