Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find a1, d, an, n, or Sn for the arithmetic sequence, as instructed.d = -2, n = 24, S24 = 144; Find a1.
A. 27 B. 29 C. 31 D. 25
Mathematics
Write an equation of the line through the given point with the given slope. Write the equation in slope-intercept form.(0, 5); m = - 
A. y = - 
x - 5
B. y = - 
x + 5
C. y = - 
x + 
D. y = - 
x + 5
Mathematics
Complete the identity.cos (x - 
) = ?
A. -cos x B. -sin x C. cos x D. sin x
Mathematics
Give all possible rational zeros for the polynomial.f(x) = 3x3 + 49x2 + 49x + 27
A. ±1, ± 
, ± 
, ± 
, ±3
B. ±1, ± 
, ±3, ±9, ±27
C. ±1, ±3, ±9, ±27
D. ±1, ±3, ±6, ±9, ±27
Mathematics