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nata0808 [166]
3 years ago
6

Two times a number plus six is eight

Mathematics
1 answer:
AleksandrR [38]3 years ago
8 0

Answer:

1

Why:

2 × 1 + 6

2 + 6 = 8

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Step-by-step explanation:

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What is bigger 3.345 or 3.35 or 3.3
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Answer:

The option is C i.e 115°, 65°. proof is given below.

Step-by-step explanation:

Given:

ABCD is a quadrilateral.

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m∠ C = 106 + 3x

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To Prove:

ABCD is a parallelogram if opposing angles are congruent by finding the measures of angles.

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Proof:

ABCD is a quadrilateral and is a parallelogram if opposing angles are congruent.

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On substituting the given values we get

∴  100 + 5x  = 106 +3x

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m∠ A = 100 + 5x = 100 + 5 × 3 =100 + 15 = 115°

m∠ C = 106 + 3x = 106 + 3 ×3 =106 + 9 = 115°

∴  m∠ A = m∠ C = 115°

Similarly,

∴ m∠ B = m∠ D

77 - 4y = 47 + 6y

10y = 77 - 47

10y =30

∴y=\frac{30}{10} \\y = 3\\

m∠ B = 77 - 4y =77 - 4 × 3 = 77 - 12 = 65°

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∴ m∠ B = m∠ D = 65°

Therefore the option is C i.e 115°, 65°

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