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3 years ago

Write an equation of the line perpendicular to 6x + 7y=126, through (7,8).

Mathematics

1 answer:

Mandarinka [93]2 years ago

6 0

Answer:

y = 7/6 * x - 1/6

Step-by-step explanation:

6x + 7y = 126

y = (- 6/7) * x + 18

slope: -6/7

A line perpendicular to another has a slope that is the negative reciprocal of the slope of the other line

slope' : 7/6

y = mx + b

8 = 7/6 * 7 + b

b = (48-49) / 6 = - 1/6

equation: y = 7/6 * x - 1/6

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Soloha48 [4]

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2 years ago

Find the slope of the line passing through the two points.

GalinKa [24]

The fromula of a slope:

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

a) (-1, -8), (-7, -4)

substitute

$m=\dfrac{-4-(-8)}{-7-(-1)}=\dfrac{-4+8}{-7+1}=\dfrac{4}{-6}=-\dfrac{2}{3}$

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substitute

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2 years ago

At the Royal Dragon Chinese restaurant, a slip in the fortune cookies indicates a dollar amount that will be subtracted from yo

Afina-wow [57]

Answer:

We can expect $1.7 off

Step-by-step explanation:

We are given 10 fortune cookies out of which

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Probability

A = drawing $1 off cookies P(A) = 7/10

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Expectation = 1*7/10 + 2*2/10+ 6*1/10

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1 year ago

If x = √3 − √2 , find the value of ( −1/x)root 2

makkiz [27]

hello

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3 years ago

I need help solving this: ³√1,331

spin [16.1K]

Answer: 11

Step-by-step explanation:

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1 year ago

Read 2 more answers

Write an equation of the line perpendicular to 6x + 7y=126, through (7,8).​

Write an equation of the line perpendicular to 6x + 7y=126, through (7,8).