neellllllss
29.10.2020 •
Mathematics
Which of the following expressions is equivalent to 31y - 14z - 3y - 12x + 7 - 3z?
A. 12x + 34 y + 17z + 7
B. 14y - 5x - 3z
C. 12x + 31y - 3z
D. -12x + 28y - 17z + 7
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Ответ:
D
Step-by-step explanation:
ive done this before
Ответ:
Four Common Tangents, (n = 4)
Step-by-step explanation:
The next to last case is where the centers of the circles are far enough apart that the circles are completely separated. This is probably the most common case, and is defined by the relationship: d > a + b. There are 2 internal common tangents and two external common tangents.
not sure it's help!
sorry