Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse with foci at (4, -1) and (4, -7); major axis length of 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
Mathematics
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Calculate the work done by the force F along the path C.F = ti + 
j + k ; C: r(t) = e4ti + e4tj + (7t2 + t)k , -1 ? t ? 1
A. W = e4 + e-4 + 16 B. W = 2 C. W = 16 D. W = e4 + e-4 + 2
Mathematics
Find the limit of the sequence if it converges; otherwise indicate divergence.an = n - 
A. 9
B. 
C. 0
D. Diverges
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 2x + 5
A. f-1(x) = 
B. f(x) = 
C. f-1(x) = 
D. f-1(x) = - 
Mathematics
Provide an appropriate response.Solve for x: log4 x = -3
Fill in the blank(s) with the appropriate word(s).
Mathematics