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Mekhanik [1.2K]
2 years ago
7

A sector of a circle has a central angle measure of 300. The diameter of the circle is 26 centimeters What is the approximate ar

ea of the sector
Mathematics
1 answer:
stira [4]2 years ago
4 0
(1/2(r^2)(degree)) / 180 = A
FORMULA


(1/2(26^2)(300)) / 180 = 563.333333

ANSWER 563pie

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Decompose fraction 11/5
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All three please 10 points
GaryK [48]

Answer:

A) x = 3 or -1

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Step-by-step explanation:

A) x² + 2x + 1 = 2x² - 2

Rearranging, we have;

2x² - x² - 2x - 2 - 1 = 0

x² - 2x - 3 = 0

Using quadratic formula, we have;

x = [-(-2) ± √((-2)² - 4(1 × -3))]/(2 × 1)

x = (2 ± √16)/2

x = (2 + 4)/2 or (2 - 4)/2

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B) ((x + 2)/3) - 2/15 = (x - 2)/5

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log(2x + 3) = logx²

Log will cancel out to give;

2x + 3 = x²

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Using quadratic formula, we have;

x = [-(-2) ± √((-2)² - 4(1 × -3))]/(2 × 1)

x = (2 ± √16)/2

x = (2 + 4)/2 or (2 - 4)/2

x = 6/2 or -2/2

x = 3 or -1

5 0
3 years ago
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