Answer:
3n-9=40
Step-by-step explanation:
i just had this graded, it was multiple choice.
3n-9=40 is your answer :)
BD is 31 degrees because it is the same.
ADB is 90-31 because it is a right angle ( 59 degrees)
DEC is 180 - (31*2) because the 180 is of the trangle and the 31 is the same on the other side so times 2 then removed from 180
5.0 × 10-5
5 cm divided by 1 km
take the log of both sides
or