Alice is designing a book shelf. the segment lq represents the base of the book shelf. alice wants to construct a line to represent a rack passing through r and parallel to side lq. she uses a straightedge and compass to complete some steps of the construction, as shown below:

the thermometer is precise but not accurate

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

i belive those are the ones that are under 90 degreese.