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elena55 [62]
2 years ago
12

Solve 2x + 12 = -4. show wrk

Mathematics
2 answers:
mel-nik [20]2 years ago
5 0

2x +12=-4

2x= -4-12

2x=-16

x=-16/2

x= -8

labwork [276]2 years ago
4 0

Step-by-step explanation:

2x+12=-4

2x=-4-12

x=-16/2

x=-8

<u>hope</u><u> </u><u>this</u><u> helps</u><u> you</u>

<u>have</u><u> a</u><u> good</u><u> day</u><u>.</u>

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san4es73 [151]
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5 0
3 years ago
Given circle P with arc AE=53, arc BA=68 and arc CB=72 match the following angles with their corresponding measurements
11Alexandr11 [23.1K]
From the diagram;
1. Angle 2 = ADB+BDH
                                           = arcAB/2 +90 
                                           = 34 +90 
                                           = 124°

2. Angle 4= 90°,
Reason ; the angle between a tangent and a radius is equal to 90. A tangent is a line that touches the circumference of a circle once even if prolonged.

3. Angle 5 = 90 -BDC (note the acr subtends twice the angle it subtends on the circumference to the center.
             = 90-arc BC/2
             = 90-36
              = 54°

4. Angle 6 = BFD
             = 180-ADB-FBD
             = 180-AB/2-DE/2
             But DE = 180 -121 = 59
Therefore, BFD = 180 -34-29.5
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5. Angle 1 = 180- BFD (angles on a straight line add up to 180°)
              = 180- 116.5
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6. Angle 3 = 180 -(ADB+BFD)
             = 180 -(34 +116.5)
             =  180- 150.5
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similarly angle 3 = DE/2 = 59/2 = 29.5°

7. Angle 8= 90, because BD is diameter;
 angles subtended by a diameter to the circumference is always a right angle (90°)


8.Angle 7 =  BE
               but BE= AB+AE
                          = 68+ 53
                          = 121°
                 


    
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