SD(X )
The probability density function of X is f (x) = 64 / x5 over [2, ?) . Compute the quantity.
0.888889 or 8 / 9
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Use the inverse trigonometric keys on a calculator to find the measure of angle A, rounded to the nearest whole degree.
A. 49° B. 51° C. 52° D. 50°
Provide an appropriate response.If we wish to locate the candidates for local extrema and saddle points in the interior of the domain of a function 
then how should we proceed?(i) Set the partial derivatives equal to each other.(ii) Set the partial derivatives equal to zero.(iii) Set the partial derivatives equal to the critical values.
A. Only (i) is correct. B. Only (ii) is correct. C. Only (iii) is correct. D. None of the above is correct.
Find the y- and x-intercepts for the equation. Then graph the equation.x + y = -6
A. (0, -6), (6, 0)
B. (0, 6), (-6, 0)
C. (0, -6), (-6, 0)
D. (0, 6), (6, 0)
Solve.
x = - 
A. - 
B. 
C. - 3
D. - 1