Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 3 | A Maths
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Hello, I really need help with this question. Pls reply asap, thank you!!
Date Posted: 2 years ago
Views: 165
dont know the real question as the pic is incomplete
below only the working to find the x & y
x+y + x
= 2x+y
= 20÷2 = 10
y = 10-2x
(x+y)² + x² = 68
2x² + 2xy +y² = 68
2x² + 2x•(10-2x) +(10-2x)² = 68
x² - 10x + 16 = 0
(x-8)(x-2) = 0
x ₁ = 2 → y ₁ = 6
x ₂ = 8 (✘)
below only the working to find the x & y
x+y + x
= 2x+y
= 20÷2 = 10
y = 10-2x
(x+y)² + x² = 68
2x² + 2xy +y² = 68
2x² + 2x•(10-2x) +(10-2x)² = 68
x² - 10x + 16 = 0
(x-8)(x-2) = 0
x ₁ = 2 → y ₁ = 6
x ₂ = 8 (✘)
See 2 Answers
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Try
Date Posted:
2 years ago
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
See photo. Use Pythagoras Theorem.
Date Posted:
2 years ago
360 Tutoring Program