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Romashka-Z-Leto [24]
3 years ago
15

What is the value of x is?

Mathematics
1 answer:
marin [14]3 years ago
3 0
The applicable theorem is the one that tells you the exterior angle is equal to the sum of the opposite interior angles.
  9x = (5x) +(9 +x)
  9x = 6x +9 . . . . . . . . collect terms
  3x = 9 . . . . . . . . . . . . subtract 6x
  x = 3 . . . . . . . . . . . . . divide by 3

The value of x is 3.

_____
The angles (clockwise from left) are then
  (9*3)° = 27°
  (5*3)° = 15°
  (9 +3)° = 12°
This is an obtuse triangle, obviously not drawn to scale.
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How do you graph y=-x+ 3/2 please help meee
lora16 [44]
I have attached the graph of y = -x + 1.5

The line goes through the points (0,1.5) and (1.5,0)



6 0
3 years ago
2(x + 4) - 5 = 3x + 3
OverLord2011 [107]

Answer:

x=0

Step-by-step explanation:

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

Distribute

2x+8-5 = 3x+3

Subtract x values

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Final Subtraction

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3 0
3 years ago
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Determine the equation of the tangent to x− 3x +1 at the point (3,1)
wariber [46]

9514 1404 393

Answer:

  y = 3x -8

Step-by-step explanation:

We assume you want the tangent to the parabola y = x² -3x +1 at the given point. The slope is found using the derivative of the function at that point.

  y' = 2x -3

At x=3, the slope is ...

  y' = 2(3) -3 = 3

The equation of the line through point (3, 1) with a slope of 3 is ...

  y -1 = 3(x -3) . . . .  use the point-slope form of the equation for a line

  y = 3x -9 +1 . . . . . eliminate parentheses, add 1

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4 0
3 years ago
Can someone help me plz and thank u
alexandr402 [8]

Answer:

<A = 44

Step-by-step explanation:

A triangle is 180 degrees

(x+59) + (x+51) + 84 = 180        >> add everything on the left side

2x + 194 = 180                          >> subtract both sides by 194

2x = -14                                     >> divide both sides by 2 to get x alone

x = -7

since you are finding A<, substitute

<A = x + 51

<A = (-7) + 51

<A = 44  

3 0
3 years ago
What is the answer to 81.56 + n - 2.55
Anna71 [15]
81.56+n-2.55=0
81.56+n=2.55
n=2.55-81.56
n=-79.01
5 0
3 years ago
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