Problem B$\mathrm{.}1$ relates to Requirements of a Linear Programming Problem B$\mathrm{.}1$ The LP relationships that follow were formulated by Richard Martin at the Long Beach Chemical Company. Which ones are invalid for use in a linear programming problem, and why? SUIVEUPHT pr and $6$X$1+12$X$1$X$2+5$X$34$X$1$X$2+2$X$3<=707\mathrm{.}9$X$1-4$X$2>=15\mathrm{.}63$X$1+3$X$2+3$X$3>=21-19$X$23$X$3=17-$X$1$ X$2+4$X$3=5$ Maximize $=$ Subject to: $-4$X$1+2$X$2+3$V X$2<=80<$ Problem B$\mathrm{.}1$ relates to Requirements of a Linear Programming Problem B$\mathrm{.}1$ The LP relationships that follow were formulated by Richard Martin at the Long Beach Chemical Company. Which ones are invalid for use in a linear programming problem, and why?

Maximize $=6$ X$\_1+1/2$ X$\_1$ X$\_2+5$ X$\_3$

Subject to: $4$ X$\_1$ X$\_2+2$ X$\_3<=70$

$7\mathrm{.}9$ X$\_1-4$ X$\_2>=15\mathrm{.}6$

$3$ X$\_1+3$ X$\_2+3$ X$\_3>=21$

$19$ X$\_2-1/3$ X$\_3=17$

$-$X$\_1-$X$\_2+4$ X$\_3=5$

$4$ X$\_1+2$ X$\_2+3($X$\_3)<=80$