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2 years ago

5x + 2 <22 Inequality

Mathematics

2 answers:

rjkz [21]2 years ago

7 0

Answer:

the answer to the inequality is

Step-by-step explanation:

x = 3

scoray [572]2 years ago

6 0

Answer:

$x < 4$

Step-by-step explanation:

1) Subtract 2 from both sides.

$5x < 22 - 2$

2) Simplify 22 - 2 to 22.

$5x < 20$

3) Divide both sides by 5.

$x < \frac{20}{5}$

4) Simplify 20/5 to 4.

$x < 4$

So, therefor, the answer is, x < 4.

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Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. Assume

Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

$\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

Sample size : n=41

Sample mean : $\overline{x}=4.0\text{ kg}$

Standard deviation : $\sigma=6.1\text{ kg}$

Then, 99% confidence interval for population mean will be :_

$4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)$

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2 years ago

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lys-0071 [83]

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Step-by-step explanation:

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2 years ago

What is the square number of 13 27 81 21 43 48 23 39 45

Burka [1]

if you add them all its 340 and the square number is 9

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2 years ago

Read 2 more answers

a certain polygon has 9 sides.Two of the sides have length of a,and 4 sides each have length 3a.The lengths of the remaining thr

melamori03 [73]

92 = 11 + 12 + 13 + 2(a) + 4(3a)

92 = 36 + 2a + 12a

92 = 36 + 14a

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56 = 14a

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a = 4

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3 years ago

(7a3 – 2a - 2) + (-5a + 3) =

astraxan [27]

Answer in attachments below.

Hope This Helps

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2 years ago