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boyakko [2]
3 years ago
8

Which line is perpendicular to y=7x-3 if the perpendicular line passes through the point (7, 7)? a) y=-7x-1 b) y=-7x+8 c) y=-1/7

x+8 d) y=-1/7x+1
Mathematics
1 answer:
Norma-Jean [14]3 years ago
3 0

Perpendicular lines have an opposite reciprocal slope, therefore, the slope of the perpendicular line is:

-1/7

So far, y = -1/7x + b. Now we need to plug in (7, 7) into x and y for our equation.

7 = -1/7(7) + b

Simplify the right side

7 = -1 + b

Add 1 to both sides

8 = b

The equation of the perpendicular line is:

y = -1/7x + 8

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passing thru (1.2)
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b = y - mx
b = 2 - (-2)(1)
b = 2 + 2
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equation
y = -2x + 4
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Is x = −8 a solution of the equation 3(x + 1) = 3x + 3?
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Step-by-step explanation:

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Use the image below to describe at least three different ratios, written in simplest form. Include at least one part-to-part rat
9966 [12]

The different ratios are 2 : 7, 2 : 9 and 7 : 9

<h3>How to determine the ratio?</h3>

The statement is given as:

8 out of 36 squares unfilled

This means that:

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  • 8 are unfilled
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The part-to-part ratio is represented as:

Ratio = Unfilled : Filled

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The part-to-whole ratios are represented as:

Ratio = Unfilled : Total

Ratio = Filled : Total

So, we have:

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Filled : Total = 28 : 36

Simplify

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Hence, the different ratios are 2 : 7, 2 : 9 and 7 : 9

Read more about ratio at:

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6 0
2 years ago
Carl buys 1.5 pounds of grapes. The
Umnica [9.8K]

Answer:

$3.51

Step-by-step explanation:

1 pound is $2.39 so divide by 2 and round up to the nearest whole number which is $1.12. Add $1.12(The cost of 0.5 pounds) to $2.39(The cost of 1 pound) to get $3.51 as your total.

4 0
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Find the distance between the points L and D.<br><br>A)-2<br>B)0<br>C)1<br>D)2​
Alisiya [41]

Answer:

C) 1

there is only one space between L and D

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