Solve the equation. -  = 1

A. {1}
B.
C.
D.


Answer: A

Mathematics

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Find the velocity vector in terms of ur and u?.r = a(7 - cos ?) and  = 5

A. v = (5a cos ?)ur + 5a(7 - sin ?)u? B. v = 5a(7 - cos ?)ur + (5a sin ?)u? C. v = (5a sin ?)ur + 5a(7 - cos ?)u? D. v = (7a sin ?)ur + 7a(5 - cos ?)u?

Mathematics

Solve the problem.For the pair of similar triangles, find the value of b.

A. 16 B. 12 C. 11 D. 4

Mathematics

Simplify. Do not use negative exponents in your answer.(mn)-8

A.
B.
C.
D. m8n8

Mathematics

Solve the inequality symbolically. Express the solution set in interval notation.-11x + 6 ? -12x + 4

A. (-?, -2] B. [-2, ?) C. (-?, -11) D. (-11, ?)

Mathematics