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Ratling [72]
3 years ago
7

What is the complete factorization of x2 − 6x + 9?

Mathematics
2 answers:
lilavasa [31]3 years ago
8 0

Answer:

(x-3)²

Step-by-step explanation:

Sati [7]3 years ago
5 0
<h2>Answer:</h2>

The factors are <u>(x-3) and (x-3)</u>

<h2>Given: </h2>

x^{2}-6 x+9

<h2>Step-by-step explanation:</h2>

In this problem, we need to find the factors which is on multiplying the factor we will get the equation.

\Rightarrow x^{2}-6 x+9

Now, we need find the sum of the coefficient of ‘x’ and product of the constant.

The coefficient of ‘x’ is written as:

\Rightarrow x^{2}-3 x-3 x+9

Now, we need to find the common multiply and divide the equation into two,

\Rightarrow x(x-3)-3(x-3)

\Rightarrow(x-3)(x-3)

\therefore(x-3)^{2}

Thus, the factor is formed which is multiplied to give the equation given in the question.

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Step-by-step explanation:

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3 years ago
In a class of 100 students, 25 have hardcover and 75 students have paperback textbooks. If you randomly choose 15 students in th
Gnom [1K]

Answer:

23.72% probability that 3 of them have hardcover texts.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the students are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

If you randomly choose 15 students in this class, find the probability that 3 of them have hardcover texts.

Desired outcomes:

3 with hardcover texts, from a set of 25.

15-3 = 12 with paperback texts, from a set of 75. So

D = C_{25,3}*C_{75,12} = \frac{25!}{3!(22)!}*\frac{75!}{12!(63)!} = 6 \times 10^{16}

Total outcomes:

15 students from a set of 100. So

T = C_{100,15} = \frac{100!}{15!85!} = 2.53 \times 10^{17}

Probability:

P = \frac{D}{T} = \frac{6 \times 10^{16}}{2.53 \times 10^{17}} = 0.2372

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3 years ago
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Answer:

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Step-by-step explanation:

1) 3

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3 years ago
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Answer:

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