When is substituted into the equation , the resulting equations for X and Y are
Select the correct answer.
?

A.
B.
C.
D.
E.


Answer: A

Mathematics

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Find the mass of the wire that lies along the curve r and has density ?.C1: r(t) = (5 cos t)i + (5 sin t)j, 0 ? t ? ;C2: r(t) = 5j + tk, 0 ? t ? 1; ? = 7t5

A.  units
B.  units
C. ?5 units
D. ?5 units

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Simplify.

A. 77
B. 7
C. 11
D. 23

Mathematics

Find the perimeter of the polygon.

A. 88 in. B. 98 in. C. 83 in. D. 344 in.

Mathematics

Provide an appropriate response.Change 0.45° to equivalent minutes and seconds. Round to the nearest second if necessary.

A. 27' B. 1,620' C. 105' D. 54'

Mathematics