3 years ago

I having trouble on number 7

1 answer:

5 0

The answer is c=1/4p Solve for C by simply multiplying 1/4 x 8 and you get 2, 1/4 x 12 and you get 3, so on and so forth

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AURORKA [14]

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Setler79 [48]

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Tju [1.3M]

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77julia77 [94]

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3 years ago

mezya [45]

Answer:

x = x = 9 ± $\sqrt{13}$ or x ≈ 12.61 or x ≈ 5.39

Step-by-step explanation:

x² - 18x + 68 Solve by completing the square.

x² - 18x = - 68

Now complete the square and add that number to both sides of the equation.

1/2 (of the coefficient of the x term)² = (1/2 · -18)² = 81 .

x² - 18x + 81 = -68 + 81

(x - 9) (x - 9) = 13 Now find the square root of both sides

$\sqrt{(x - 9)(x - 9)}$ = $\sqrt{13}$ Solve

x - 9 = ± $\sqrt{13}$ Solve for x

x = 9 ± $\sqrt{13}$

x = 9 + $\sqrt{13}$ or x = 9 - $\sqrt{13}$

x ≈ 12.61 or x ≈ x 5.39

6 0

2 years ago