Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 3 | E Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
need help with b only, pls explain how to do also as its my first time encountering this qn. thanks :))
Date Posted: 4 years ago
Views: 317
See 1 Answer
Find 3 lightyears in km.
(9.5 x 10^12 x 3)km = 2.85 x 10^13km
Since 1 AU= 1.5 x10^8km,
Divide 2.85 x 10^13 km by 1.5 x 10^8 km.
The answer is 1.9 x 10^5 AU.
(9.5 x 10^12 x 3)km = 2.85 x 10^13km
Since 1 AU= 1.5 x10^8km,
Divide 2.85 x 10^13 km by 1.5 x 10^8 km.
The answer is 1.9 x 10^5 AU.
360 Tutoring Program