First here get brainlist<333 so i dont get reported: (12-9) x 2 + 5²=
A/ 31
B/ 34
C/ 16
D/ 0

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Ответ:

richierichMBM7786

22.12.2020

Mathematics

$Let\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\\\\\text{We have}\ k:y=\dfrac{1}{2}x-9\to m_1=\dfrac{1}{2}\\\\l:y=mx+b\to\dfrac{1}{2}m=-1\qquad|\cdot2\\\\m=-2\\\\l:y=-2x+b\\\\\text{Put the coordinates of the point (7, 10) to the equation of the line}\ l:\\\\10=-2(7)+b\\10=-14+b\qquad|+14\\b=24\\\\\ y=-2x+24$

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First here get brainlist<333 so i dont get reported: (12-9) x 2 + 5²= A/ 31 B/ 34 C/ 16 D/ 0