Answer:
B
Step-by-step explanation:
Just took the assignment
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Answer:
7(x-2)(x+2)
Step-by-step explanation:
7x^2 -28
Factor out a 7
7(x^2 -4)
The terms inside the parentheses is the difference of squares, so it is factorable (a^2-b^2) = (a-b)(a+b)
7(x-2)(x+2)
<h3>
Answer: between 14 cm and 15 cm</h3>
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Explanation:
If the area is
, then the side length is approximately 
The side lengths are between 14 and 15 cm.
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Or you could have your steps like this:

Assuming the equation that represents the relationship is y = 62 + 6x.
QUESTION A: Let's first determine the value x at y = 81.
y = 62 + 6x
62 + 6x = 81
6x = 81 - 62
6x = 19
6x = 19/6
x = 3.166... or 3.17 hours
Therefore, x is:
"The number of hours a student should spend on their homework to expect a score of 81 on the quiz."
The answer is the 4th Choice.