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Zina [86]
3 years ago
12

Find the equation of a line, in slope-intercept form of a line that passes through the point (9, 2) and is perpendicular to the

line 2x - y = 8.
Mathematics
2 answers:
Alex777 [14]3 years ago
8 0

Answer:

D in odyssey ware

Step-by-step explanation:

11Alexandr11 [23.1K]3 years ago
4 0

Answer:

The equation of the line would be y = -1/2x + 13/2

Step-by-step explanation:

In order to get the slope of the line, you need to first find the slope of the original line. You do this by solving for y.

2x - y = 8

-y = -2x + 8

y = 2x - 8

Now that you have the slope, we take the opposite and reciprocal slope to be the perpendicular (based on the definition of perpendicular lines). This means we take the opposite of 2 (which is -2) and then we flip the term (which means -2 becomes -1/2).

To find the slope-intercept form, we'll use our new slope of -1/2 and a point in point-slope form and solve for y.

y - y1 = m(x - x1)

y - 2 = -1/2(x - 9)

y - 2 = -1/2x + 9/2

y = -1/2x + 13/2

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If QR= 3x-2, RS= 2x+1, QS=6x-3, and R is between Q and S, then RS=​
rewona [7]

Answer:

RS = 5

Step-by-step explanation:

Since R is between Q and S , then

QS = QR + RS , that is

6x - 3 = 3x - 2 + 2x + 1

6x - 3 = 5x - 1 ( subtract 5x from both sides )

x - 3 = - 1 ( add 3 to both sides )

x = 2

Then

RS = 2x + 1 = 2(2) + 1 = 4 + 1 = 5

4 0
3 years ago
Erik works 55 hours a week making $12.50 hour? His employer pays time and a half for hours over 40. Find his gross pay.
UNO [17]

Answer:

781.25

Step-by-step explanation:

Regular pay = 40*12.50 = 500.00

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Gross pay = 500.00 + 281.25 = 781.25

6 0
3 years ago
Find the value of a.B.find the value of the marked angles
Bond [772]

Answer:

a. 18 b. 119°, 118°

Step-by-step explanation:

a. Given angles are vertical, so they are equal.

6a+11 = 2a+83

6a-2a = 83-11

4a = 72

a = 72/4

a = 18

b. Substituting the value of a in the given angles,

6a+11 = 6*18+11 = 108+11 = 119°

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8 0
3 years ago
What is the exact value of arccos(−2√2) ?
Strike441 [17]

Answer:

See explanation

Step-by-step explanation:

The range of the cosine function is -1\le \cos x\le 1

Therefore arc \cos (-2\sqrt{2}) is not defined.

Assuming your question is rather arc \cos (-\frac{\sqrt{2}}{2})

Then arc \cos (-\frac{\sqrt{2}}{2})=\pi-arc \cos (\frac{\sqrt{2}}{2})  in the second quadrant.

arc \cos (-\frac{\sqrt{2}}{2})=\pi-\frac{\pi}{4}

arc \cos (-\frac{\sqrt{2}}{2})=\frac{3\pi}{4}

4 0
3 years ago
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Temka [501]

Answer:

look at your other question i gave answers btw

Step-by-step explanation:

because you multiply by 1/2 you are taking half away

When you divide by 2 you also take half away

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7 0
3 years ago
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