3 years ago

Tim predicts he will get 98 points on the next exam. If Tim actually earned 62 points, what was Tim's percent error?

Mathematics

1 answer:

Nataly [62]3 years ago

3 0

Answer:

If Tim actually earned 62 points . Therefore Tim's percent error is 58.1 % .

Step-by-step explanation:

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Write an equation of the perpendicular bisector of the segment with end points M(1,5) and N(7,-1)

vitfil [10]

The perpendicular bisector of the segment passes through the midpoint of this segment. Thus, we will initially find the midpoint P:

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Now, we will calculate the slope of the segment support line (r). After this, we will use the fact that the perpendicular bisector (p) is perpendicular to r:

$m_r=\dfrac{\Delta y}{\Delta x}=\dfrac{5-(-1)}{1-7}=\dfrac{6}{-6}\iff m_r=-1$

$p\perp r\Longrightarrow m_p\cdot m_r=-1\Longrightarrow m_p\cdot(-1)=-1\iff m_p=1$

We can calculate the equation of p by using its slope and its point P:

$y-y_P=m_p(x-x_P)\\\\
y-2=1\cdot(x-4)\\\\
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\boxed{p:~~y=x-2}$

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Which is a correct definition of perpendicular lines?

djyliett [7]

It would be B: a set of points that extends infinitely in two directions

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2 years ago

Which answer is correct?

luda_lava [24]

Answer:

The choice 210

Step-by-step explanation:

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I hope I helped you^_^

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2 years ago

Mary is baking a cake. The recipe calls for 7 cups of flour. She already put in 3 cups. How many more cups does she need to add?

pshichka [43]

Answer:

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