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2 years ago

Please help will mark brainliest

Mathematics

1 answer:

Wewaii [24]2 years ago

4 0

Since this is a triangle all the angles within the triangle add up to 180 degrees so....
82+(9x+2)+(7x)=180
82+2+16x=180
16x+84=180
16x=96
X=6
If we plug in X to angle(9x+2) and angle (7x) we will get 56 and 42. We can get angle 2 by subtracting 180-42 which is 138
FINAL ANSWER: 138 degrees

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liberstina [14]

The correct answer is A

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D) $8(-40)=10(-40)+20$ becomes $-320\neq -380$

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3 years ago

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Ainat [17]

Answer:

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Step-by-step explanation:

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3 years ago

4 A curve has equation y=x^3 - 2x² +5. Find the coordinates of its two stationary points.

vodomira [7]

Answer:

Stationary points are (0, 5) and (4/3, 103/27)

Step-by-step explanation:

At stationary point (turning point), dy/dx :

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but dy/dx = 0:

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let y = x³ - 2x² + 5:

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3 years ago

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Answer:

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3 years ago

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Oduvanchick [21]

Slope 1- -4
----------= 5/5=1.
5-0

Slope is m= 1
X1= 0
Y1= -4

Formula

Y-Y1= m(X-X1)
Y- -4= 1(X-0)
Y+4= 1x+0
Bring X to the left becomes negative 4 to the right
Standard form
#x+#y=#
-X+Y= -4 Answer
Check
Using pt Q
-5+1= -4

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3 years ago