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hoa [83]
1 year ago
9

PLEASE HELP W THIS MATH QUESTION. correct answers only please​

Mathematics
1 answer:
bezimeni [28]1 year ago
7 0

The values of x are x₁ ≈ 4.8 and x₂ ≈ - 0.8.

<h3>What is the quadratic equation behind two circular sections of equal area?</h3>

Herein we have two <em>circular</em> sections of equal area, whose expressions are described by the following geometric equations:

Semicircle

A = 0.5π · x²     (1)

Half Semicircle

A = 0.25π · (x + 2)²      (2)

By equalizing (1) and (2):

0.5π · x² = 0.25π · (x + 2)²  

2 · x² = (x + 2)²  

2 · x² = x² + 4 · x + 4

x² - 4 · x - 4 = 0

x² - 4 · x + 4 = 8

(x - 2)² = 8

x - 2 = ±√8

x = 2 ± √8

x = 2 ± 2√2

x = 2 · (1 ± √2)

x = 2 · (1 ± 1.41)

x₁ = 2 · 2.41   ∨   x₂ = 2 · (- 0.41)

x₁ = 4.82   ∨   x₂ = - 0.82

The values of x are x₁ ≈ 4.8 and x₂ ≈ - 0.8.

To learn more on quadratic equations: brainly.com/question/17177510

#SPJ1

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3 years ago
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2y to the power of 4 x 5y to the power of 3
Yakvenalex [24]

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Step 1:  (2y to the 4th power • 5) • y to the 3rd power

Step 2:  (2•5y to the 4th power) • y to the 3rd power

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