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atroni [7]
3 years ago
8

(4 + y = 19) what is y

Mathematics
1 answer:
Fiesta28 [93]3 years ago
5 0
4 + y = 19

y = 19 - 4

y = 15
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Prove that lines 3x-4y=12 and 3y=12-4x are perpendicular.
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Answer:

see explanation

Step-by-step explanation:

If 2 lines are perpendicular then the product of their slopes equals - 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Consider the given equations

3x - 4y = 12 ( subtract 3x from both sides )

- 4y = - 3x + 12 ( divide terms by - 4 )

y = \frac{3}{4} x - 3 ← in slope- intercept form

with slope m = \frac{3}{4}

3y = 12 - 4x = - 4x + 12 ( divide terms by 3 )

y = - \frac{4}{3} x + 4 ← in slope- intercept form

with slope m = - \frac{4}{3}

Then

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Since the product of their slopes = - 1 then the lines are perpendicular

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shutvik [7]

52.5 Yards (yd).

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Ten helicopters are assigned to search for a lost airplane; each of the helicopters can be used in one out of two possible regio
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Answer:

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What should be done to both sides of the equation in order to solve -5m=-40
irina1246 [14]

Answer:

divide each side by -5

Step-by-step explanation:

-5m = -40

divide each side by -5

-5m/-5 = -40/-5

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3 0
2 years ago
Read 2 more answers
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