Hey!
Hope this helps...
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The answer for the first part is A. 13.3
But, I'm not entirely sure about the second part...
And, I'm pretty sure (but don't quote me) that answer for the third part is B. Equally as variable..
Answer:
9ab - 9a +1
Step-by-step explanation:
first, we can distribute the negative sign to the second set of parentheses.
-(-4ab + 5) becomes + 4ab - 5
now let's put the values in (5ab-9a-4) side by side with the corresponding values in + 4ab - 5
5ab + 4ab - 9a - 4 - 5
= 9ab - 9a - 9, because 5ab + 4ab = 9ab, -9a is alone, and -4 - 5 = -9.
Answer:
Thank youuu. i needed this. i haven't been doing too good lately because of school and my dad and everything. i really needed to hear this. thank you
Step-by-step explanation:
A = 81° B = 99
The reason for this is because this is a vertical angle. Vertical angles have a property where the opposite sides are equal to each other. Also you can double check this by adding them all together and it has to add up to 360° since it’s a full circle