Solve the equation.x2 + 4x + 20 = 0
A. {-6, 2}
B. {-2 - 16i, -2 + 16i}
C. {-2 - 4i}
D. {-2 - 4i, -2 + 4i}
Answer: D
Mathematics
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Find the area of the region specified by the integral(s).
+ 
A. 9
B. 18
C. 
D. 3
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Find the flux of the curl of field F through the shell S.F = 3x2yi - 3xy2j + ln zk ; S: r(r, ?) = r cos ?i + r sin ?j + 4rk, 0 ? r ? 4 and 0 ? ? ? 2?
A. 128 B. - 128 C. 384? D. - 128?
Mathematics
Find the indicated vector.Let u = 
, v = 
. Find 
u - 
v.
A. 
B. 
C. 
D. 
Mathematics
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(6x2 + 7x - 8) + (14x + 8)
A. 6x2 + 21x - 16 B. 27x3 C. 6x2 + 21x D. 6x2 + 7x + 16
Mathematics