Answer:
All (a,b) that satisfy a.b < 0 will make that statement false
Step-by-step explanation:
It is only right when:
|a-b| = |a| - |b|
<=> ( |a-b| ) ^ 2 = ( |a| - |b| ) ^ 2
<=> a^2 - 2ab + b^2 = a^2 - 2.|ab| + b^2
<=> ab = |ab|
<=> ab ≥ 0
So, when ab < 0, it's wrong
Sorry i dont know ether i need help on this one 2
Answer: 4.2 miles
Step-by-step explanation:
So she ran 6 miles in 50 minutes how long will she run in 35 minutes?
So the equation will therefore be:
6=50
x=35
Cross multiply
6 x 35 = 50x
210 = 50x
Divide both sides by 50
The answer is 4.2 miles