D. u.s. workers will lose their jobs
i wish i could tell you but i am not a scientist.
A would be the right choice i think not really enough information.
The Law of Cosines is used to find the remaining parts of an oblique (non-right) triangle when either the lengths of two sides and the measure of the included angle is known (SAS) or the lengths of the three sides (SSS) are known. The Law of Cosines states: ... c2=a2+b2−2ab cosC .
