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Sergio039 [100]
2 years ago
12

Ok I’m actually dumb lol help me please.

Mathematics
1 answer:
mezya [45]2 years ago
3 0

Answer:

x =20

Step-by-step explanation:

As a line is 180 degrees

So 7x + 40 would be 180, which would lead us with the equation:

7x+40=180

=7x =140 (minus both sides by 40)

=x =20 (divide both sides by 7)

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Geometry help greatly needed, check photo for more information! <3
vlabodo [156]

Answer:

\huge\boxed{\sf x = 55\°}

Step-by-step explanation:

When a quadrilateral is inscribed in a circle, the opposite angles of it add up to 180 degrees.

Here,

∠DCB + ∠DAB = 180 (Opposite angles of a quad inscribed in a circle.)

<u>Given that:</u> ∠DCB = 135° and ∠DAB = x

135 + x = 180

Subtract 135 to both sides

x = 180 - 135

x = 55°

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
8 0
1 year ago
40 is 50% of what number?<br> A. 20<br> B. 40<br> C. 60<br> D. 80
Alex787 [66]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
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4(2x+3)=x(3+5)+12<br> Help
Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

8x + 12 = 3x + 5x + 12

8x + 12 = 8x + 12

Bringing like terms on one side

8x - 8x = 12 - 12

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7 0
2 years ago
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What is the equivalent of <br>2/3x -9 - 2x + 2 = 1 after combining like terms?​
elena-s [515]

Answer:

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Step-by-step explanation:

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3 years ago
IMAGE ATTACHED please help giving 50 points
alexdok [17]

Answer:

(4,1)

Step-by-step explanation:

when points are reflected on the y-axis you switch your x coordinate from positive to negative or the other way around the y coordinate stays the same.

(2,1) reflected is (-2,1)

(7,4) reflected is (-7,4)

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