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Marta_Voda [28]
2 years ago
6

Which shows one way to determine the factors of 12x3 – 2x2 18x – 3 by grouping? 2x2(6x – 1) 3(6x – 1) 2x2(6x – 1) – 3(6x – 1) 6x

(2x2 – 3) – 1(2x2 – 3) 6x(2x2 3) 1(2x2 3)
Mathematics
1 answer:
KengaRu [80]2 years ago
6 0

The factor of the given expression 12x^3 - 2x² + 18x-3 is as follows (6x-1)(2x²+3).

<h3>What is a quadratic equation?</h3>

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

The given expression is

12x^3 - 2x² + 18x-3

= 2x²(6x-1) + 3(6x-1)

= (6x-1)(2x²+3)

Learn more about quadratic equations;

brainly.com/question/13197897

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Answer: -1.51

Step-by-step explanation:

Let \mu be the population mean rating of car.

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H_0: \mu=42.8

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Since population variance is known, so we use z-test.

Test statistic : z=\dfrac{\overline{x}-\mu}{\sqrt{\dfrac{\sigma^2}{n}}}

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Put these values in formula we get

z=\dfrac{42.6-42.8}{\sqrt{\dfrac{5.29}{300}}}

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Answer:

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