Answer:
x = ± 2
Step-by-step explanation:
Given
12 - x² = 0 ( add x² to both sides )
12 = x² or
x² = 12 ( take the square root of both sides )
x = ±
= ±
= ± 2
Answer:
Step-by-step explanation:
Because it is a square root
Answer:
10 days.
Step-by-step explanation:
8÷12 (because you can not divide people.
.666
take that and multiply it by 15
you will get 10
They are equivalent because 4:5 can both be multiplied by 2 making 8:10.