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3 years ago

What is the value of X? any help would be great:)

Mathematics

2 answers:

lisov135 [29]3 years ago

5 0

Answer:

x = 2

Step-by-step explanation:

Given 2 secants drawn from an external point to the circle, then

EC × ED = EB × EA, that is

(x + 4)(x + 4 + 1) = (x + 1)(x + 1 + 11)

(x + 4)(x + 5) = (x + 1)(x + 12) ← expand factors on both sides

x² + 9x + 20 = x² + 13x + 12 ← subtract x² + 13x from both sides

- 4x + 20 = 12 ( subtract 20 from both sides )

- 4x = - 8 ( divide both sides by - 4 )

x = 2

m_a_m_a [10]3 years ago

4 0

idk sorry ill look for you

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Step-by-step explanation:

Disjoint events are those events that cannot occur at the same time, i.e. for events X and Y to be disjoint, $P(X\cap Y)=0$ .

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The events A and B are disjoint events.

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3 years ago

What are the roots of x in -10x2 + 12x − 9 = 0?

hoa [83]

Answer:

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Step-by-step explanation:

Use the Quadratic formula:

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Answer:

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Step-by-step explanation:

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