Answer:
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In this item, it can be seen that from an expression of,
(4 + 5i) + (-3 + 7i)
Aiko transformed the equation by factoring out the i's from the expression and wrote it as,
(4 + 5)i + (-3 + 7)i
Now this is wrong because i there is not a variable but a notation that 5 and 7 are imaginary numbers. In fact, she cannot factor out the i's because it is not present in both -3 and 4. The answer therefore to this item is the last sentence, "Aiko incorrectly used the distributive property by combining ..."
Answer: the diameter of the hydrochloric acid in Casey's container is 6 inches
Step-by-step explanation:
The formula for determining the volume of a cylinder is expressed as
Volume = πr²h
Where
r represents the radius of the cylindrical beaker.
h represents the height of the cylindrical beaker.
π is a constant whose value is 3.14
From the information given,
Volume cylindrical beaker = 113 cubic inches.
Height = 4 inches
Therefore,
113 = 3.14 × r² × 4
113 = 12.56r²
r² = 113/12.56 = 8.9968
r = √8.9968
r = 3
Diameter = 2 × radius
Diameter = 2 × 3 = 6 inches
Answer: 
or 
Step-by-step explanation:
Volume of right circular cylinder = 
Given: Radius = 6 centimeters
Height = 12 centimeters
Then, the volume of this cylinder = 
Hence, the volume of this cylinder =
At 
The volume of this cylinder
