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natulia [17]
3 years ago
15

Please help I’m stuck

Mathematics
1 answer:
Aliun [14]3 years ago
6 0
Okay so in the little chart at the bottom of the page, the first 2 are true, and the last one is false.

I hope this helps. If it does, please rate as Brainliest
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2 years ago
Work out the size of AED. Work out x
Monica [59]

Answer:

a). m∠AED = 70°

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Step-by-step explanation:

a). Quadrilateral ABDE is a cyclic quadrilateral.

Therefore, by the theorem of cyclic quadrilateral,

Sum of either pair of opposite angle is 180°

m(∠AED) + m(∠ABD) = 180°

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Since, ∠AED ≅ ∠EAD

Therefore, m∠AED = m∠EAD = 70°

b). By triangle sum theorem in ΔABD,

m∠ABD + m∠BDA + m∠DAB = 180°

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m∠EAC + m∠AEC + m∠ACE = 180°

100° + 70° + x° = 180°

x = 180° - 170°

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3 years ago
Image of problem attached
AlexFokin [52]

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Step 1: 12x – 15 – 12x = 7x + 20
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Step-by-step explanation:

step 1. 12x - 15 - 12x = 7x + 20

step 2. 12x - 12x - 15 = 7x + 20 (grouping of terms)

step 3. -15 = 7x + 20 (adding like terms)

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step 6. -5 = x ( divide both sides by 7)

step 7. x = -5 (put the variable first).

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3 years ago
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Answer:

12

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Percent means out of 100

We have 3/25

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12/100

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3 years ago
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