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Dmitry [639]
2 years ago
9

20 point question pls help

Mathematics
1 answer:
lubasha [3.4K]2 years ago
3 0

Answer: y = -1/3x - 1

Step-by-step explanation:

Slope-intercept = y = Mx + b

M = slope

B= y

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The height, h, of the equilateral triangle is given by h =5cotΘ, where Θ is 30 degrees. Can someone help me with this? I don't u
Hoochie [10]

You don't even need the picture to solve this one.

You said that      h = 5 cot(Θ) ,    and you said that  Θ  is 30 degrees.
All you need now is to find the cotangent of  Θ, plop that into the equation,
and the solution practically jumps off the paper into your lap.

To find the cotangent of 30 degrees, you can use a calculator, look it up
in a book, read it off of a slide rule if you have one, draw a picture of a
30-60-90 right triangle etc.  You'll find that the cotangent of 30 degrees
is  √3 .  That's about 1.732 .

So your equation is    h = 5 (1.732)  =  <em>8.66  </em>(rounded)

Apparently, somebody gave you the equation, and asked you to find 'h'.
Once you had the equation, you didn't even need to know that  'h'  has
anything to do with a triangle.


5 0
3 years ago
Which equation is equivalent to (1/3)x= 27x+2?
blsea [12.9K]

multiply everything by 3

x=81x+6

-80x=6

x=6/-80

x=3/-40

3 0
3 years ago
Read 2 more answers
Help me please, <br><br>Calculate the external perimeter of the picture frame: <br>​
Studentka2010 [4]
Perimeter of a parallelogram = 2(l+b)
= 2 (65+42)
= 2*107
= 214 cm
8 0
3 years ago
What is the distance between point A (−1, 3) and point B (−7, 3) ?
malfutka [58]

Answer:

6

Step-by-step explanation:

I used the formula  d=√((x_2-x_1)²+(y_2-y_1)²), plugged in the numbers and solved and got 6 units.

8 0
3 years ago
two parallel lines are graphed on a coordinate plane.how many of the lines could represent proportional relationship?Explain.
soldi70 [24.7K]

It's not necessary that either one represents a proportional
relationship.  But if either one does, then the other one doesn't. 
They can't both represent such a relationship.

The graph of a proportional relationship must go through
the origin.  If one of a pair of parallel lines goes through
the origin, then the other one doesn't. (If two parallel lines
both went through the origin, then they would both be the
same line.)

7 0
3 years ago
Read 2 more answers
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