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harkovskaia [24]
4 years ago
11

Find the value of x. help please !

Mathematics
1 answer:
Kisachek [45]4 years ago
4 0

Answer:

33

Step-by-step explanation:

The sum of the three interior angles in a triangle is ALWAYS equivalent to 180 degrees.

69 + 78 = 147

180 - 147 = 33

Hope this is helpful & accurate! Best wishes.

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Help please with question 11 if you have time
Flauer [41]
16y^3 + 9x^2y - 54x = 0

16*3y* dy/dx  + 9x^2* dy/dx + 18xy  - 54 = 0

 dy/dx =   = (54 - 18xy) / (48y + 9x^2)

I have to go  I can do the second part later
7 0
4 years ago
A circle in the xy-plane has its center at the point (-6,1). If the point (7, 12) lies on the circle,
Delicious77 [7]

Answer:

radius ≈ 17.0 units

Step-by-step explanation:

The radius is the distance from the centre of the circle to a point on it.

Calculate the radius r using the distance formula

r = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = (- 6, 1) and (x₂, y₂ ) = (7, 12)

r = \sqrt{(7+6)^2+(12-1)^2}

  = \sqrt{13^2+11^2}

  = \sqrt{169+121}

   = \sqrt{290} ≈ 17.0 ( to the nearest tenth )

4 0
3 years ago
How to simplify the expression -6 - 7 (-5) +6
MArishka [77]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

Let's do it!

Step-by-step explanation:

-6 - 7(-5) + 6

-6 + (-7)(-5) + 6

-6 + 35 + 6

-6 + 41

35

[To think of it another way, 6 and -6 cancel out to become zero, so our answer is 35].

I hope this answered your question!

- sincerelynini

7 0
4 years ago
Enzo saw
Zinaida [17]

Answer:

Its easy 45×9=405 simple Mental math

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt%7B3%7Dtan%28%5Cfrac%7B%CF%80%7D%7B6%7D-x%29%3D1" id="TexFormula1" title="\sqrt{3}tan(\
MAVERICK [17]

Answer:

hja8ĺ gdhirť

Step-by-step explanation:

/553/18182=34326 calculations

3 0
3 years ago
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