Answer:
Correct
The solution is Sarah; The pi button on the calculator gives a more accurate representation for pi than 3.14. Using 3.14 as an approximation for pi yields a less accurate result.
Step-by-step explanation:
Answer:
Option C) is correct
That is the result should be in a difference of squares is

Step-by-step explanation:
To find the result in the form of differences in squares
Given that the expression is (-7x+4)(-7x-4)
( by using the identity
)
Here a=-7x and b=4

Therefore
which results as a difference of squares.
Therefore Option C) is correct
That is the result should be in a difference of squares is

A because i did that on my piece of paper and it was right