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PtichkaEL [24]
2 years ago
13

The value of X2 + 6x + 9 for x =4 is​

Mathematics
2 answers:
klasskru [66]2 years ago
7 0

Answer:

41

Step-by-step explanation:

putting x into the eqn

Natalija [7]2 years ago
3 0
41
4x2+6x4+9
You might want to double check my math
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Step-by-step explanation:

-4+8n-7n=

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2 years ago
Select the correct answer from each drop-down menu.
I am Lyosha [343]

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<h2>5,040 I'm sure that's answer thank you</h2>
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A Ski resort tracks the proportion of seasonal employees who are rehired each season. Rehiring a seasonal employee is beneficial
DaniilM [7]

The test statistic z will be equal to -0.946 and it shows that there is no significant difference in the proportion of rehires between full time and part time.

Given sample sizes of 833 and 386 and result of samples 434 and 189.

n_{1} =833,     n_{2}=386

Proportion  of full time=434/833=0.52

Proportion of part time=189/386=0.49.

Difference in proportion =0.52-0.49

H_{0}:TTF- i∈ rho=0

H_{1}: TTF+i∈ rho≠0.

Mean of difference=0.03

Z=(X-μ)/σ

σ=\sqrt{0.4517/447}

=0.0317

σ=0.0317

z=(0-0.03)/0.0317

=-0.03/0.0317

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p value will be =0.1736.

Because p value is greater than 0.01 so we will accept the null hypothesis which shows that there is no significant difference in the proportions.

Hence there is no significant difference in the proportion of rehires between full time and part time.

Learn more about z test at brainly.com/question/14453510

#SPJ4

6 0
2 years ago
Why would a railway be important to either side in the civil war?
GaryK [48]

Answer:

Either side would have been improved by a railway so they could get more ammo in and get food in and also get the sick and wonded out to get medical attention

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The square root of the quotient of a number and 6 is 9. find the number
erastovalidia [21]
Sq root (x / 6) = 9
We square both sides:
(x / 6) = 81
x = 486


4 0
3 years ago
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