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Zepler [3.9K]
3 years ago
7

What is 21 divided by 8806

Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

Answer: .0023847376

Step-by-step explanation:

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Given: Line Segment AC ≅ Line Segment DC, ∠B≅∠D
Neporo4naja [7]

Answer:

See Below.

Step-by-step explanation:

<u>Statements</u>                                                       <u>Reasons: </u>

<u />1)\text{ } AC\cong DC                                                      Given

2)\text{ } \angle B\cong \angle D                                                      Given

3)\angle BCA \cong \angle ECD                                            Vertical Angles are Congruent

4)\text{ } \Delta ACB\cong \Delta DCE                                          AAS Congruence

5)\text{ } AB\cong DE                                                      CPCTC

7 0
3 years ago
According to a marketing research study, American teenagers watched 14.8 hours of social media posts per month last year, on ave
ki77a [65]

Answer:

The value of test statistics is 1.06.

Step-by-step explanation:

We are given that according to a marketing research study, American teenagers watched 14.8 hours of social media posts per month last year, on average. A random sample of 11 American teenagers was surveyed and the mean amount of time per month each teenager watched social media posts was 15.6. This data has a sample standard deviation of 2.5.

We have to test if the mean amount of time American teenagers watch social media posts per month is greater than the mean amount of time last year or not.

Let, NULL HYPOTHESIS, H_0 : \mu = 14.8 hours  {means that the mean amount of time American teenagers watch social media posts per month is same as the mean amount of time last year}

ALTERNATE HYPOTHESIS, H_1 : \mu > 14.8 hours  {means that the mean amount of time American teenagers watch social media posts per month is greater than the mean amount of time last year}

The test statistics that will be used here is One-sample t-test;

             T.S. = \frac{\bar X - \mu}{\frac{s}{\sqrt{n} } } ~ t_n_-_1

where, \bar X = sample mean amount of time per month each teenager watched social media posts = 15.6 hours

             s = sample standard deviation = 2.5 hours

             n = sample of teenagers = 11

So, <u>test statistics</u> =  \frac{15.6 - 14.8}{\frac{2.5}{\sqrt{11} } } ~ t_1_0

                            = 1.06

Hence, the value of test statistics is 1.06.

5 0
3 years ago
PLS HELP WITH THIS QUESTION GIVING BRAINLIST
Aleks04 [339]

Answer: 1: 5(3x+4)

2: 6(x2+4x−3)

3: 5x(4x2−3x+2)

4: 4n2(4n2-3)

Step-by-step explanation:

8 0
3 years ago
What’s the answer???(SOMEONE PLEASE HELP ME)
slava [35]

I think it's D. I will admit that I'm an educated guess.

8 0
3 years ago
Write a numerical expression for the verbal expression. the sum of two an four and six times eight
Trava [24]
(2+4+6)*8 hopefully that's what you are looking for
3 0
2 years ago
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