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2 years ago

(3x² + 6x + 1) = (3x)

Mathematics

1 answer:

torisob [31]2 years ago

6 0

Answer:

Step-by-step explanation:

x=- $\frac{3-i\sqrt{3} }{6}$ , - $\frac{3+i\sqrt{3} }{6}$

hope this helps! :)

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Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch's 200 cows. Instead of weighing all of t

Zolol [24]

Answer:

The value is $E =19.6$

Step-by-step explanation:

From the question we are told that

The mean of Jo cows is $\= x_1 = 1350$

The standard deviation of Jo cow is $s_1 = 50$

The mean of Val cows is $\= x_2 = 1420$

The standard deviation of Val cows is $s_2 = 50$

The sample size for both Val and Jo is n = 25

Let assume that the level of significance is $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

Hence margin of error for Jo is

=> $E = 1.96 * \frac{50}{\sqrt{25} }$

=> $E =19.6$

4 0

2 years ago

What’s the answer and how to solve this problem

irakobra [83]

That's a long problem for five points.

7 0

2 years ago

Pleasee help me :)))

nevsk [136]

Answer:

Ok Ill help you :)

Step-by-step explanation:

a) -125

b) +27

c) -9

d) +9/8

I hope this helps!!! ❤️

8 0

2 years ago

What is 21x^6y^5 divided by 14x^y^9 will make brainliest lot of points on the line too

Fiesta28 [93]

Answer:

$\dfrac{3x^4}{2y^4}$

Step-by-step explanation:

$\dfrac{21x^6y^5}{14x^2y^9}= \\\\\\\dfrac{21}{14}\cdot \dfrac{x^6}{x^2} \cdot \dfrac{y^5}{y^9}= \\\\\\\dfrac{3x^4}{2y^4}$

Hope this helps!

5 0

2 years ago

HELP PLEASE!!

irina1246 [14]

Answer:

68 got it right on the test!!!

Step-by-step explanation:

3 0

2 years ago

(3x² + 6x + 1) = (3x)​

(3x² + 6x + 1) = (3x)