5. A number is squared, then multiplied by 6. The result is 54. What was the number? Answer:

Mathematics

1 answer:

madam [21]2 years ago

8 0

Answer:

± 3

Step-by-step explanation:

let n be the number then the number squared is n² , so

6n² = 54 ( divide both sides by 6 )

n² = 9 ( take the square root of both sides )

n = ± $\sqrt{9}$ = ± 3

That is the number is 3 or - 3

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Marta_Voda [28]

Answer:

No, he should have set the sum of ∠AED and ∠DEC equal to 180°, rather then setting ∠AED and ∠DEC equal to each other

Step-by-step explanation:

Find the diagram attached

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