Factor, if possible.r8 + 40r4 + 400
A. (r4 - 20)2
B. (r4 + 20)(r4 - 20)
C. Prime polynomial
D. (r4 + 20)2
Answer: D
Mathematics
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Find the flux of the curl of field F through the shell S.F = (x-y)i + (x-z)j + (y-z)k; S is the portion of the cone z = 4
below the plane z = 4
A. - 4? B. - 2? C. 4 D. 2?
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In the figure, AB || DC and ?B ? ?D. Prove that AD || BC
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Solve the formula for the specified variable.T = ?R2 + ?Rs for s
A. s = T - R
B. s = 
C. s = ?(T - R)
D. s = 
- 1
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The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 3, x = -8
A. r = 
B. r = 
C. r = 
D. r = 
Mathematics