Simplify the expression.
A. -1
B. - 
C. 1
D. 
Answer: B
Mathematics
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Find the curvature of the space curve.r(t) = 
(1 + t)3/2i +
(1 - t)3/2j + 
tk
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Mathematics
Find the limit.
tan x
A. 1 B. 0 C. -? D. ?
Mathematics
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.(x + 4)(x + 1) = 28
A. {-4, -1} B. {1, 4} C. {-3, 8} D. {-8, 3}
Mathematics
Supply the missing numbers. 
A.
0. | 83. % |
B.
0.08 | 8. % |
C.
0.8 | 83. % |
D.
0.5 | 56. % |
Mathematics