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Drupady [299]
2 years ago
14

\sqrt{2x^2+x+1}+\sqrt{x^2-x+1}=3x

Mathematics
1 answer:
djyliett [7]2 years ago
7 0
X=1


Mark brainliest please


Hope this helps you
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The human resource department at a certain company wants to conduct a survey regarding worker benefits. The department has an al
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Answer:

Explained below.

Step-by-step explanation:

The human resource department at a certain company wants to conduct a survey regarding worker morale. The department has an alphabetical list of all 4,502 employees at the company and wants to conduct a systematic sample of size 50.

Systematic sampling is a kind of probability sampling method in which individuals from a larger population are nominated according to a random initial point and a static, periodic interval.

(a)

A sample of size 50.

Then the value of <em>k</em> will be: k=\frac{4502}{50}=90.04\approx 50

Thus, the value of <em>k</em> is 90.

(b)

Label the employees from 1 to 4502.

And select every 90th employee.

So, the individuals who will be administered the survey are:

90th, 180th, 270th,...

7 0
3 years ago
Zia was driving his truck on the superhighway. His speed was recorded by the motorway camera between 6:00 am to 8:30 am. He cove
kodGreya [7K]

Answer:

Average speed = 100 km/h

Step-by-step explanation:

Given:

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Computation:

⇒ Average speed = Total distance covered / Total time taken

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6 0
3 years ago
Question 1 of 10<br> Which of the following is most likely the next step in the series?
Goshia [24]

Answer:

The second one.

Step-by-step explanation:

The pattern is red with 0 arrows, blue with 1 arrow, red with 2 arrows, so it would be blue with 3 arrows.

4 0
3 years ago
PLEASE HELP!!! ASAP PLEASE !! IM BEGGING !!!!!!!
nadya68 [22]
ABC and CBH are right angles

DBC = 90 - 37 = 53
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or
HBD = 31 + 53 + 59 = 143 :)
3 0
3 years ago
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(9.4x-3y) -(4.5x-8y) simplified
Elena-2011 [213]

Answer:

4.9x + 5y

Step-by-step explanation:

(9.4x - 3y) - (4.5x - 8y) \\  = 9.4x - 3y - 4.5x + 8y \\  = 9.4x - 4.5x + 8y - 3y \\  = 4.9x + 5y

6 0
4 years ago
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