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3 years ago

FREE PONITS oof its really late for me lol

Mathematics

2 answers:

irinina [24]3 years ago

7 0

Kkskskskdjdjdjdksksjjsdj thx

Digiron [165]3 years ago

3 0

Thank you! Let me know if you need any help with anything but math and english!

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Which expression is equivalent to3 (1 + x)+7

ivann1987 [24]

Expressions equivalent to 3(1+x)+7 is x+10

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3 years ago

Line segment NY has endpoints N(-11, 5) and Y(3,-3).

777dan777 [17]

Given:

Line segment NY has endpoints N(-11, 5) and Y(3,-3).

To find:

The equation of the perpendicular bisector of NY.

Solution:

Midpoint point of NY is

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$Midpoint=\left(\dfrac{-11+3}{2},\dfrac{5-3}{2}\right)$

$Midpoint=\left(\dfrac{-8}{2},\dfrac{2}{2}\right)$

$Midpoint=\left(-4,1\right)$

Slope of lines NY is

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$m=\dfrac{-3-5}{3-(-11)}$

$m=\dfrac{-8}{14}$

$m=\dfrac{-4}{7}$

Product of slopes of two perpendicular lines is -1. So,

$m_1\times \dfrac{-4}{7}=-1$

$m_1=\dfrac{7}{4}$

The perpendicular bisector of NY passes through (-4,1) with slope $\dfrac{7}{4}$ . So, the equation of perpendicular bisector of NY is

$y-y_1=m_1(x-x_1)$

$y-1=\dfrac{7}{4}(x-(-4))$

$y-1=\dfrac{7}{4}(x+4)$

$y-1=\dfrac{7}{4}x+7$

Add 1 on both sides.

$y=\dfrac{7}{4}x+8$

Therefore, the equation of perpendicular bisector of NY is $y=\dfrac{7}{4}x+8$ .

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3 years ago

He lays the long edge of the paper along the long edge of the frame several times and finds the frame is 4 papers long.How long

Paha777 [63]

Answer:

44 inches

Step-by-step explanation:

A regular sized printer paper is 8.5 x 11 inches. Since the long side is 11 inches, and there are 4 papers 11 x 4 us 44.

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3 years ago

The profit at a factory that makes CD's can be computed using the linear equation p = 2.5d - 1000 where p is the profit and d is

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The slope is 2.5/1 such that 2.5 rise and 1 is run.

It represents the number of CD's.

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4 years ago

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Carlos was happy when he found that he had $50. Then he remembered that he owed a friend $60. How much money does Carlos actuall

Molodets [167]

-10 if he paid his friend he still owes him 10 bucks still

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