2 years ago

I really need some help . I don’t know if my answer is correct or not ?

Mathematics

2 answers:

Elena-2011 [213]2 years ago

8 0

Step-by-step explanation:

$\sqrt{2p + 5} - 3 \\ when \: p = 10 \: \\ then \\ \sqrt{2(10) + 5} - 3 \\ \sqrt{20 + 5} - 3 \\ \sqrt{25} - 3 \\ 5 - 3 \\ 2$

Aleks [24]2 years ago

5 0

Answer:

$\sqrt{2p + 5} - 3 (p = 10) \\ \sqrt{20 + 5} - 3 \\ \sqrt{25} - 3 \\ 5 - 3 \\ 2$

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Step-by-step explanation:

$\text{Let}\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\=========================$

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