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o-na [289]
3 years ago
13

Simplify: 2x + 9 - 17x - 15 -x​

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
6 0

Answer:

1

Step-by-step explanation:

2x + 9 - 17x - 15 - x =????

2x - 17x - x + 9 - 15 = 0

- 15x - x - 16 = 0

- 16x - 16 =0

-16x = 16

x = 16 / - 16

x = 1

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(9-j)-3

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Do you guys know 1.2n-1.5=0.45n
Lera25 [3.4K]

Answer:

n = 2

Step-by-step explanation:

1.2n - 1.5 = 0.45n

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3 years ago
Find an equation for the line perpendicular to 2x+ 6y = 30 and goes through the point (6,2)
Mashutka [201]

Answer:

y = 3x - 16

Step-by-step explanation:

We are asked to find the equation of the line perpendicular to 2x + 6y = 30

We can use two formulas for this question, either

y = mx + c. Or

y - y_1 = m(x - x_1)

Step 1: calculate the slope

From the equation given

2x + 6y = 30

Make y the subject of the formula

6y = 30 - 2x

Or

6y = -2x + 30

Divide both sides by 6, to get y

6y/6 = ( -2x + 30)/6

y = (-2x + 30)/6

Separate them in order to get the slope

y = -2x/6 + 30/6

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y = -x/3 + 5

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Step 2:

Note: if two lines are perpendicular to the other, both are negative reciprocal of each other

Perpendicular slope = 3/1

Substitute the slope into the equation

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x = 6

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Make the c the subject

2 - 18 =c

c = 2 - 18

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Step 4: sub the value of c into the equation

y = 3x + c

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The equation of the line is

y = 3x - 16

If you try out the other formula, u will get the same answer

5 0
3 years ago
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Answer:

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