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dangina [55]
3 years ago
14

Find the missing factor x^2-7x-18=(x-9)

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0
To factor the polynomial x² - 7x - 18, find two numbers whose sum is -7 and whose product is -18. Begin listing factors of -18, and those numbers' sums.

-2 × 9 = -18; -2 + 9 = 7
-9 × 2 = -18; -9 + 2 = -7

The two numbers are -9 and 2.

The factored polynomial is (x - 9)(x + 2)

Answer:
The missing factor is (x + 2)
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Answer:

For this case a parameter represent the population data and for this case the parameter would be the true mean \mu who represent the amount of gasoline they used in the previous week

\bar X= \frac{\sum_{i=1}^n X_i}{3800} =11.75

And the sample mean is an unbiased estimator of the true mean.

Step-by-step explanation:

For this case a parameter represent the population data and for this case the parameter would be the true mean \mu who represent the amount of gasoline they used in the previous week

And in order to estimate the parameter of interest we use a survey of n =3800 and the sample mean who represent an statistic is given by:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

And we got:

\bar X= \frac{\sum_{i=1}^n X_i}{3800} =11.75

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Outcome

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2 years ago
ASAP! I’ll give u Brainly !
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The area of circle is 379.94 cm².

Step-by-step explanation:

Given,

Radius of circle = 11 centimeters

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Area of circle = 3.14*(11)^2

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The area of circle is 379.94 squared centimeters.

Keywords: area, circle

Learn more about circles at:

  • brainly.com/question/11921476
  • brainly.com/question/1232765

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