A negative sign under a square root means that the root is a not a real number.
A negative sign outside a square root means we can "cover it" and evaluate the square root.
When the sign is outside, you can do the root first, then apply the sign. Not so if the sign is inside.
Thus, √-49 is not real and -√64 = -8.
I believe the answer is x = 4
The answer out of a and b
Answer:
Step-by-step explanation:
- <em>
</em><u><em>Question</em></u><em>:</em>
- <em>How many kilometers does Daisy have left to reach the picnic area?
</em>
<u>Given</u>
<u>Let the distance be x, then</u>
- 0.6x = 18
- x = 18/0.6
- x = 30 km
<u>Remaining distance is:</u>