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BARSIC [14]
4 years ago
14

Write the vaule of the digit 9

Mathematics
1 answer:
snow_lady [41]4 years ago
4 0
It's in the ones place
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A USA Today/CNN/Gallup survey of 369 working parents found 200 who said they spend too little time with their children because o
KengaRu [80]

Answer: a. 0.542

b. 0.051

c. (0.491,\ 0.593)

Step-by-step explanation:

Let p be the population proportion of parents spend too little time with their children because of work commitments

As per given , we have

n= 369

\hat{p}=\dfrac{200}{369}=0.542005420054\approx0.542

Since the sample proportion is the best estimate for the population proportion.

So , the point estimate of the proportion of the population of working parents who feel they spend too little time with their children because of work commitments = 0.542

z-value for 95% confidence interval : z_{\alpha/2}=1.96

Margin of error : E=z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

E=(1.96)\sqrt{\dfrac{0.542(1-0.542)}{369}}\\\\=0.0508364564574\approx0.051

The margin of error = 0.051

Confidence interval : \hat{p}\pm E

0.542\pm0.051\\\\=(0.542-0.051,\ 0.542+0.051)\\\\=(0.491,\ 0.593)

95% confidence interval estimate of the population proportion of working parents who feel they spend too little time with their children because of work commitments : (0.491,\ 0.593)

6 0
4 years ago
Factor the expression<br> 16m^2 - 24mn + 9n^2
sladkih [1.3K]

Answer:

(4m-3n)(4m-3n)

Step-by-step explanation:

16m^2-24mn+8n^2

(4m-3n)(4m-3n)

7 0
4 years ago
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Find equivalent fraction with a common denominator and order from least to greatest
nika2105 [10]
The fractions would be in order-
3/10, 1/2, 4/5
Because if you change each fraction to a denominator of 10, the numbers will be 3/10, 5/10, and 8/10
6 0
3 years ago
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Please show work !!!!!!!!
sineoko [7]
You must first link your problems along with the question.
8 0
4 years ago
2|4x-1|=38 I need to solve this
umka21 [38]
First you have to have the absolute value isolated so the 2 has to be divided. Then set up the two cases and solve.

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3 years ago
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