2 years ago

[PICTURE ATTACHED] HEEEEELLLPPP

Mathematics

2 answers:

REY [17]2 years ago

7 0

Answer:

the first one

Step-by-step explanation:

sorry if it wrong

julia-pushkina [17]2 years ago

4 0

The first one hopefully this helps

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Why is the percent increase from 45 to 75 not equal to the percent decrease from 75 to 452 Select three options

NNADVOKAT [17]

Answer:the ratio of the % increase has a different numerator from decrease

Step-by-step explanation:

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3 years ago

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Consider the line 5x-8y=8 what is the slope of a line perpendicular to this line what is the slope of a line parallel to this li

Sophie [7]

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\\text{Convert the equation to the slope-intercept form}\ y=mx+b.\\\\5x-8y=8\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\-8y=-5x+8\qquad\text{divide both sides by (-8)}\\\\y=\dfrac{5}{8}x-1\to m_1=\dfrac{5}{8}\\\\perpendicular:\ m_2=-\dfrac{1}{\frac{5}{8}}=-\dfrac{8}{5}\\\\parallel:\ m_2=\dfrac{5}{8}$