Find the exact value of the expression.sin 10° cos 50° + cos 10° sin 50°
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.The line segment joining the points (0, 2) and (8, 4) is revolved about the x-axis to generate a frustum of a cone. Find the surface area of the frustum using the parametrization x = 4t, y = t + 2, 0 ? t ? 2.
A. 12?
B. 12
C. 12?
D. 6?
Mathematics
Find the nth term of the geometric sequence with the given values.a = 1215, r = - 
, n = 9
A. - 
B. 
C. - 
D. 
Mathematics
Provide an appropriate response.The Cauchy density function, f(x) = 
, occurs in probability theory. Show that 
What will be an ideal response?
Mathematics
Provide an appropriate response.In factoring a trinomial in y as (y + a)(y + b), what must be true of a and b, if the coefficient of the last term of the trinomial is negative?
What will be an ideal response?
Mathematics