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goldfiish [28.3K]
2 years ago
13

Find the value of variable x. If your answer is not an integer, write it in simplest radical form with the denominator rationali

zed
x=
(Simplify your answer. Type an integer or a simplified fraction.)

Mathematics
1 answer:
laila [671]2 years ago
6 0

Answer:

Step-by-step explanation:

It is a 30°-60°-90° triangle.

The lengths of the sides of a 30°-60°-90° triangle are in the ratio 1:√3:2.

The side opposite the 90° angle has length 4, so the side opposite the 30° angle is 2.

x = 2

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Solve for x in the equation 2x^2-4x-9=29
Andrews [41]

Answer:

x = 1  ±2sqrt(5)

Step-by-step explanation:

2x^2-4x-9=29

Add 9 to each each side

2x^2-4x-9+9=29+9

2x^2-4x=38

Divide by 2

2/2x^2-4/2x=38/8

x^2 -2x =19

Complete the square

x^2 -2x + (-2/2)^2 = 19 +(-2/2)^2

x^2 -2x +1 = 19+1

(x-1)^1=2 = 20

Take the square root of each side

sqrt((x-1)^2) = ±sqrt(20)

x-1 =  ±sqrt(20)

Add 1 to each side

x-1+1 = 1  ±sqrt(20)

x = 1 ±sqrt(20)

Simplifying the square root of 20

x = 1  ±sqrt(4)sqrt(5)

x = 1  ±2sqrt(5)

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3 years ago
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Veseljchak [2.6K]
What are the following rates?
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3 years ago
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25,553,552 find the digit in the hundred thousands place. Which digit has 1/1000 the value of this digit?
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*is the digit in the hundred thousand place
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Answer:

Leaving it in Radical form

Step-by-step explanation:

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3 years ago
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