Answer: 10
Step-by-step explanation:
If 
, then 
and 
.
So, the expression is equal to 10.
Answer:
x = ±2√5
Step-by-step explanation:
4 - x² = -16
we add subtract 4 from both sides. So,
4 - 4 - x² = -16 - 4
- x² = -20
we divide both sides by -1. So,
- x²/-1 = -20/-1
x² = 20
we take square root of both sides. So,
√x² = ±√20
x = ±√5 × √4
x = ±2√5
Answer:
Approximate between two whole numbers by finding the perfect squares nearest to the target number. Identify which value the non-perfect square root is closest to, then use the iterative process to approximate further to the tenths place, and then further to the hundredths place.
Hope this helps!
Sincerely; Victoria<3
Step-by-step explanation:
