a is given to us so just plug a into the first equation:
b-3 - 3b =9
Add 3 to both sides:
b-3b=12
Combine like terms:
-2b=12
Divide by -2 to get b by itself:
b=-6
The only answer with b as -6 is the first one, (-9,-6)
<span>If you like my answer, please make me the brainliest answer! It means a lot. :)
Do you mean 18 divided by 5 which is 3.6? If so:
a) the square root to the nearest integer is 2. (The square root is 1.897)
b) The square root to the nearest tenth is 1.9.
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You must perform some cancellations to arrive at the final answer. I hope this helps
The radius of a base is the answer because the formula is pi r squared