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Darina [25.2K]
3 years ago
11

11. 3/4 of 12= 12. 6/7 of 49 15. 2/3x27 16. 3/8 x 16

Mathematics
1 answer:
Zarrin [17]3 years ago
8 0

Step-by-step explanation:

3/4 of 12

3/4 × 12 = 9

6/7 of 49

6/7 × 49 = 42

2/3 × 27 = 18

3/8 x 16 = 6

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Answer:

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Step-by-step explanation:

The given table represents a function which is in the form of a quadratic equation,

y = ax² + bx + c

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For point (4, -16)

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16a + 4b + c = -16 ------(2)

For point (5, -24)

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25a + 5b + c = -24 -----(3)

Equation (1) - equation (2)

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-7a - b = 6

7a + b = -6 ------(4)

Equation (2) - equation (3)

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-9a - b = 8

9a + b = -8 -------(5)

Equation (4) - Equation (5)

(7a + b) - (9a + b) = -6 + 8

-2a = 2

a = -1

From equation (4),

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From equation (1)

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-9 + 3 + c = -10

c = -10 + 6

c = -4

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