For the first question the answer would be 1/3 divided by 3 for the second question it would be units of 1 divided into 9 equal parts
A straight angle is 180 degrees. if you bisect it (cut it in half), you'll end up with two 90 degree angles, which are called right angles.
Answer:
The mean is 
Step-by-step explanation:
Answer:
4(2 - x)(2 + x)
Step-by-step explanation:
16 - 4x² ← factor out 4 from each term
= 4(4 - x²) ← difference of 2 squares
= 4(2 - x)(2 + x) ← in factored form
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