Without going through all the trouble of writing the left side in the form of a+bi, how could you tell that this equation is false? (-9+2i)(10-13i)=-68-97i

ab: 2 n83b8eb7ebi. 8e yen in

nlgqer

step-by-step

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.