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galben [10]
3 years ago
14

What does 9a squared + 2b squared if a=4 and b=7?

Mathematics
1 answer:
joja [24]3 years ago
7 0
Wait is a squared or 9a squared
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Answer:

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Step-by-step explanation:

Find the diagram attached

If line AC and BD intersects, then m<AED + m<DEC = 180 (sum of angle on a straight line is 180 degrees)

Given

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16x = 180-84

16x = 96

x = 96/16

x = 6

Hence the value of x is 6

Hence the correct option is <em>No, he should have set the sum of ∠AED and ∠DEC equal to 180°, rather then setting ∠AED and ∠DEC equal to each other</em>

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