Answer:
-13a^2 + 170ab - 13b^2.
Step-by-step explanation:
1. 36(a+b)^2 - 49(a-b)^2
This is the difference of 2 squares: a^2 - b^2 = (a + b)(a - b).
36(a+b)^2 - 49(a-b)^2
= (6(a + b) + 7(a - b))( 6(a + b) - 7(a - b))
= (6a + 7a + 6b - 7b)( 6a - 7a + 6b + 7b)
= (13a - b)(-a + 13b)
If you require the expansion of this it is:
-13a^2 + 170ab - 13b^2.
Answer:
Heidi needs to make 9 oranges to make one large orange juice, give me brainliest answer:)
Answer:
31
Step-by-step explanation:
Substitute the values for the variables.
A+s=70, s+l=80, l+a=80
from the first s=70-a which makes the second:
70-a+l=80
-a+l=10
a=l-10 which makes the third:
l+l-10=80
2l-10=80
2l=90
l=45
So Liam weighs 45 kg.
Answer:
The height would be 18.99
