Answer:
Step-by-step explanation:
In box 1, the reason that justifies the statement, m∠BAD = m∠BAC + m∠CAD, is: angle addition postulate.
<h3>What is the Angle Addition Postulate?</h3>
The angle addition postulate states that the measure of a larger angle equals the sum of smaller angles that make up the larger angle.
∠BAD comprises of ∠BAC and ∠CAD.
Therefore, based on the angle addition postulate, m∠BAD = m∠BAC + m∠CAD.
The missing reason in box 1 would be: angle addition postulate.
Learn more about angle addition postulate on:
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A logarithm is defined as a power to which a number must be raused to in order to get another number. For example,

This is because

So if we have

We have to determine what number must 10 be raised to in order to give 13 so we have
So, let's take a look! When doing volume, we always do (addition) and nothing else. The only time that we would have to multiply is if we would have to find the area, but in this case, we are (going to figure) out what would be the volume.
We would sum up the following:

.
I believe that we would multiply this by (2) because we would have to find the other side as well.
And this would give us . . . 64 as it's volume.
V= (64)
For this case we have the following expression:
7 × 10 = 70
Where, by definition:
7: multiplying
10: multiplier
By definition we have that the multiplier equals the number of times the multiplicand must be added.
Therefore, 7 * 10 is to add 10 times 7:
7 * 10 = 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 70
Answer:
Multiplier