Find the mass of the lamina that occupies the region $D$ and has the given density function. Round your answer to two decimal places.
$$R = \{ ( x , y ) \mid 1 \leq x \leq 3,1 \leq y \leq 4 \} \rho ( x , y ) = 5 y ^ { 2 }$$

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The Answer of Find the mass of the lamina that occupies the region $D$ and has the given density function. Round your answer to two decimal places.
$$R = \{ ( x , y ) \mid 1 \leq x \leq 3,1 \leq y \leq 4 \} \rho ( x , y ) = 5 y ^ { 2 }$$

Find the Mass of the Lamina That Occupies the Region DDD

Find the Mass of the Lamina That Occupies the Region $D$