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Anna11 [10]
3 years ago
9

Find 1 2··31 1 22 1··22. Show your work

Mathematics
1 answer:
Jlenok [28]3 years ago
8 0

1 = 1 = 1 < 2 < 22

1 is equal to 1 is equal to 1 is less than 2 is less than 22

<u>1 </u> = <u>1   </u>  =<u>1   </u>  <<u> 2  </u> < <u>22</u>                                                                                                                1       1       1       1        1        hope help mark brain.....?

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If y varies inversely as x and y=32 when x=3, find x when y=15
deff fn [24]
Y=kx, k is not equal to 0
when y=32,x=3, 32=3k
                           k=32/3
so y=32/3*x
when y=15, 15=32/3*x
                     x=45/32

5 0
3 years ago
The claim that 40% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable j
Bad White [126]

Answer:

The p-value of the test is of 0.1922 > 0.02, which means that there is not significant evidence to reject the null hypothesis, that is, there is not significant evidence to conclude that the proportion is of less than 40%.

Step-by-step explanation:

Test if the proportion is less than 40%:

At the null hypothesis, we test if the proportion is of at least 0.4, that is:

H_0: p \geq 0.4

At the alternative hypothesis, we test if the proportion is of less than 0.4, that is:

H_1: p < 0.4

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.4 is tested at the null hypothesis:

This means that \mu = 0.4, \sigma = \sqrt{0.4*0.6}

74 out of the 200 workers sampled said they would return to work

This means that n = 200, X = \frac{74}{200} = 0.37

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.37 - 0.4}{\frac{\sqrt{0.4*0.6}}{\sqrt{200}}}

z = -0.87

P-value of the test and decision:

The p-value of the test is the probability of finding a sample proportion below 0.37, which is the p-value of z = -0.87.

Looking at the z-table, z = -0.87 has a p-value of 0.1922.

The p-value of the test is of 0.1922 > 0.02, which means that there is not significant evidence to reject the null hypothesis, that is, there is not significant evidence to conclude that the proportion is of less than 40%.

7 0
2 years ago
Find the slope of a line that contains points (9,1) and (3,-3) in the simplest form
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3 0
2 years ago
600,000 gallons of water pass through a given point along a river every minute. Which equation represents the amount of water, y
11111nata11111 [884]

Answer:

y=600,000  x=1

Step-by-step explanation:

y is equal to 600,000 which means that every minute (x) 600,000 gallons of water would pass that point in the river

8 0
3 years ago
Read 2 more answers
Which expression eqaul 9 when x = 4 and y = 1/3
Alexxandr [17]

Answer:

it is 9

Step-by-step explanation:

you add the 4 and times 3

5 0
2 years ago
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