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mote1985 [20]
3 years ago
14

What is an equivalent expression for (x + 7)(x + 1).

Mathematics
2 answers:
kakasveta [241]3 years ago
4 0

Answer:

x2−8x 7

Step-by-step explanation:

likoan [24]3 years ago
4 0
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answer is 2x+8
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3 years ago
The endpoints of `bar(EF)` are E(xE , yE) and F(xF , yF). What are the coordinates of the midpoint of `bar(EF)`?
Hoochie [10]

For a better understanding of the solution provided here please find the diagram attached.

Please note that in coordinate geometry, the coordinates of the midpoint of a line segment is always the average of the coordinates of the endpoints of that line segment.

Thus, if, for example, the end coordinates of a line segment are (x_{1}, y_1) and (x_2, y_2) then the coordinates of the midpoint of this line segment will be the average of the coordinates of the two endpoints and thus, it will be:

(\frac{(x_1+x_2)}{2}, \frac{(y_1+y_2)}{2})

Thus for our question the endpoints are (x_E, y_E) and (x_F, y_F) and hence the midpoint will be:

(x_M, y_M)=(\frac{(x_E+x_F)}{2}, \frac{(y_E+y_F)}{2})

Thus, Option C is the correct option.

6 0
3 years ago
Is my answer right? I think it’s A, but I don’t want to get it wrong.
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what that makes no sense

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