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Svetllana [295]
4 years ago
10

two perpendicular Lines intersect at the origin. If the slope of the First line is -1/2, What is the equation Of The second Line

?​
Mathematics
1 answer:
ohaa [14]4 years ago
3 0

Answer: y=2x

Step-by-step explanation: A perpendicular line is the opposite reciprocal of the slope. The opposite reciprocal of -1/2 is 2.

The equation of the second line is y=2x

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What is the solution to the system of equations? 3x + 10y = -47 5x- 7y = 40<br>Please and thank u
anastassius [24]

Answer:

x=1, y=-5

Step-by-step explanation:

Given equations are:

3x+10y=-47\ Eqn\ 1\\and\\5x-7y=40\ Eqn\ 2

In order to solve the equation

Multiplying Eqn 1 by 5 and eqn 2 by 3 and subtracting them

So,

Eqn 1 becomes

15x+50y=-235

Eqn 2 becomes

15x-21y=120

Subtracting 2 from a

15x+50y - (15x-21y) = -235-120

15x+50y-15x + 21y = -355

71y = -355

y = -355/71

y =-5

Putting y= -5 in eqn 1

3x+10(-5) = -47

3x -50 = -47

3x = -47+50

3x = 3

x = 3/3

x = 1

Hence the solution is:

x=1, y=-5

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3 years ago
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Ulleksa [173]
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4 years ago
Is 10−−√ greater than, less than, or equal to 5? Use the drop-down menus to explain your answer. Because 10 lies between two con
Ierofanga [76]

Answer:

\sqrt{10} < 5

Step-by-step explanation:

Given

\sqrt{10} ___ 5

Required

Fill in the gap

First, we need to solve \sqrt{10}

\sqrt{10}= 3.162

So:

\sqrt{10} ___ 5

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3.162 lies between 3 and 4

So, we can say that

\sqrt{10} lies between 3 and 4

Since:

3.162 is less than 5, the gap can be filled with <.

So, we have: 3.162 < 5

3 0
3 years ago
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Answer:

6=b

Step-by-step explanation:

6=2(b-4)+2

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8 0
3 years ago
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Phantasy [73]

Step-by-step explanation:

2x + 4(7-x)

= 2x + 28 -4x

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3 years ago
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