Any information gained directly or indirectly through our senses is a scientific... Question 10 options: A. Observation B. Data C. Fact D. Hypothesis E. Idea

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Answer 1

Answer:

A. Observation

Explanation:


Related Questions

factor 81x^2-100 A (9x-10)(9x-10) B (9x+10)(9x+10) C (9x+10)(9x-10) D (9x+50)(9x-50)

Answers

Here, we are having a quadratic equation in one variable because the highest degree is 2 and contains only one variable i.e. x

Given, equation:

[tex]81 {x}^{2} - 100[/tex]

Now, if we observe the terms used in the polynomial, 81x² and 100 separated by a negative sign, we can analyze and can factorise using the identity:

[tex] {a}^{2} - {b}^{2} = (a+ b)(a - b)[/tex]

Consider:

a² = 81x²b² = 100

So, let's factorise by using the above identity

[tex]81 {x}^{2} - 100[/tex]

[tex](9x) {}^{2} - (10) {}^{2} [/tex]

Here, a = 9x and b = 10,

[tex](9x + 10)(9x - 10)[/tex]

Is the factorised form of 81x² - 100

So Correct Option is: Option C

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