√49z²
= √(7z)². [ here, Square cancles sq. root]
= 7z
May be Helpful.
Thank you!
They will have the same solution because the first equation of system b
is obtained by adding the first equation of system a to 4 times the
second equation of system a.
Answer:
Step-by-step explanation:
so whats your question?
Answer:
55 minutes
Step-by-step explanation:
Answer:

Step-by-step explanation:
The depth function is:

After 3 minutes, a submarine had descended to −320 feet.
This means that
. So


After 8 minutes, the submarine had descended to −420 feet.
This means that
. So


From the first equation:

So





And

So
