$$\text { Find the mass of the wire that lies along the curve } r \text { and has density } \delta \text {. }$$
-$$r ( t ) = \left( \frac { \sqrt { 13 } } { 2 } t ^ { 2 } - 7 \right) i + 6 t j , 0 \leq t \leq 1 ; \delta = 3 t$$
A) $\frac { 381 } { 26 }$ units
B) $\frac { 127 } { 13 }$ units
C) 43 units
D) $\frac { 3 } { 2 }$ units

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The Answer of $$\text { Find the mass of the wire that lies along the curve } r \text { and has density } \delta \text {. }$$
-$$r ( t ) = \left( \frac { \sqrt { 13 } } { 2 } t ^ { 2 } - 7 \right) i + 6 t j , 0 \leq t \leq 1 ; \delta = 3 t$$
A) $\frac { 381 } { 26 }$ units
B) $\frac { 127 } { 13 }$ units
C) 43 units
D) $\frac { 3 } { 2 }$ units

Find the mass of the wire that lies along the curve r and has density δ. \text { Find the mass of the wire that lies along the curve } r \text { and has density } \delta \text {. } Find the mass of the wire that lies along the curve r and has density δ.

$\text { Find the mass of the wire that lies along the curve } r \text { and has density } \delta \text {. }$