6(3r^2 - 4r + 7)
18r^2 - 24r + 42
Letter A
Answer:
The answer is "2.5".
Step-by-step explanation:

The pieces which does not achieve that specific weight either are below and above the average standard deviation of 2.5. The percentage of components not fulfilling their weight data is 1.1% using a Table of Z-scores.
Answer: combine like terms dude
Step-by-step explanation:
AC is a common side, ∠ACD = ∠ACB and CD = BC ⇒ ΔACD and ΔABC <span>are congruent (SAS definition).
</span>Congruent triangles have exactly the same three angles, so ∠D = ∠B.<span>
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