Step-by-step explanation:
the answer is regular octagon
i think
Answer:
b=1
Step-by-step explanation:
9 (b + 7)= 72
9b + 63= 72
9b=9
b=1
unless you want the value when you plug the b back in with out solving then its 9
This is an EQUATION, because it has a left side, a right side, and an = sign separating the two.
An EXPRESSION does not has "sides" and no = sign.
You need to use FOIL. It works like this: multiply the F-irsts, multiply the Outsides, multiply the Insides, mulitply the Lasts. This gives you 6x squared+9x-2x-3. Now you just need to combine the like factors, giving you the final answer of 6x squared+7x-3.
Its comparing least times, so 9.675 would be the winning time.why?you ask.well, change all the decimals to the thousandths(9.750,9.700,9.675). now you could see which is the least.
