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larreanathalie3523
06.06.2021 •
Mathematics
If ⃗ = + + is perpendicular to both ⃗ = 5 + − 2 and = 3 − 3 + 6 , find and .
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Ответ:
The values of
and
are 0 and 2, respectively.
Step-by-step explanation:
If
is perpendicular to
and
, then the following relationships must be observed:
Then, we expand the previous expressions:
Then, we solve for
and
:
The values of
and
are 0 and 2, respectively.
Ответ:
The correct answer is that AC = 4x - 2 or 2(2x - 1)
Step-by-step explanation:
1. Let's review the information given to us for solving the question:
AD = 6x + 10
CD = 2x + 12
2. Let's find the length of AC
AC = AD - CD
Replacing with the real values:
AC = (6x + 10) - (2x + 12)
AC = 6x + 10 - 2x - 12
AC = 6x - 2x + 10 - 12
AC = 4x -2 or 2(2x - 1)