Evaluate the expression using the given values.?x = 3, y = 10

A.  
B.  
C.  
D.


Answer: C

Mathematics

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Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iz about the z-axis, where r(t) = (2 cos t)i + (2 sin t)j, 0 ? t ? 

A. Iz = 32
B. Iz = 0
C. Iz = 8
D. Iz = 32

Mathematics

Find the limit.

A. -? B. ? C. Does not exist D. 1/2

Mathematics

Solve the equation. = 

A. 13 B. 1 C. -13 D. -1

Mathematics

Find the exact value of the trigonometric expression without the use of a calculator.cos (265° - 25°)

A. - 
B. - 
C.
D. - 

Mathematics