If a and b are supplementary and ma = 37°45', then mb = 142°15'. true false

True.

Step-by-step explanation:

37°45' + 142°15'

= (37 + 142)° + (45 + 15)'

= 179° + 60'

= 179° + 1°

= 180°

there being 60 minutes of arc in one degree of arc.

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6