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alexira [117]
3 years ago
7

Write the equation of the line perpendicular to 3x+y=-8 that passes through (-3,1) . Write your answer in slope-intercept form.

Mathematics
2 answers:
murzikaleks [220]3 years ago
3 0
I hope this helps you

vovangra [49]3 years ago
3 0
The perpendicular vector of 3x + y = -8 would be [3, 1]. Thus, you know that the slope would be 1/3 (the vector is in the form of [x, y]).

Use point-slope form with the perpendicular slope and the point (-3, 1):
y - y_1 = m(x-x_1)
y - 1 =  \frac{1}{3}(x + 3)

You can simplify this if you want to (maybe to make it look a bit more "cleaner") and either put it as standard form or slope-intercept form. 
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-B (+or-) sqrt of b^2 - 4 x A x C
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8 0
2 years ago
A&B share the cost in a ratio 3:2. A pays £125, how much does B pay?
mrs_skeptik [129]
3 125
---= ------
2 ?

2×125
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Ans.£83.33
6 0
3 years ago
I need help with that one.<br> What is<br> 2(3x-2)- 4x= 5x+2
Dima020 [189]

Answer:

So we have this equation:

2   (3x-2) - 4x = 5x + 2

You can first operate the parenthesis, knowing that a(b+c) = ab + ac (conmutative)

2(3x-2) - 4x = 5x + 2

2 * 3x - 2 * 2 - 4x = 5x + 2

6x - 4 -4x = 5x + 2

Now, we can operate the x:

6x - 4 -4x = 5x + 2

2x - 4 = 5x + 2

And sum 4 in both sides and substract 5x in both too.

2x - 4 = 5x +2

2x - 4 + 4 - 5x' = 5x + 2 + 4 -5x

Now we can operate:

-3x = 6

And we can divide by -3 the two sides...

x = 6/-3 = -2

5 0
2 years ago
Read 2 more answers
Dr. Porterfield a financial counselor guru informed Mr. Halpayne he needs $2,000,000 saved if he intends to retire with his wive
ser-zykov [4K]

9514 1404 393

Answer:

  $737,289

Step-by-step explanation:

The future value of an investment P invested at rate r per year compounded monthly for t years is ...

  FV = P(1 +r/12)^(12·t)

We want to find P for the given future value, so we can solve for that:

  P = FV/(1 +r/12)^(12·t) = FV(1 +r/12)^(-12·t)

  P = $2,000,000(1 +.05/12)^(-240) = $737,289

Mr. Halpayne needs a present value of $737,289 to support his retirement.

6 0
3 years ago
HELP ME PLZ I NEED IT
Alchen [17]

Answer:

  = 12 cm^3

Step-by-step explanation:

V = Bh  where B is the area of the base and h is the height

For a triangular prism, the base is the triangle

A = 1/2 bh for the triangle

   = 1/2 (6*2)

   = 6 cm^2

To find the volume for the triangular prism

V = Bh

  = 6 * 2

  = 12 cm^3

4 0
2 years ago
Read 2 more answers
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