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Rudik [331]
3 years ago
10

I needdd help please! ):

Mathematics
1 answer:
nignag [31]3 years ago
3 0

9514 1404 393

Answer:

  16. x = 11

  17. x = 4

Step-by-step explanation:

The triangles of interest are congruent, so corresponding parts have the same measure.

__

16. 2x+2 = x+13

  x = 11 . . . . . . . . . subtract x+2 from both sides

__

17. 4x+4 = 3x+8

  x = 4 . . . . . . . . . subtract 3x+4 from both sides

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Answer:

Andy basically has two stickers

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2 years ago
A study investigated the effectiveness of meditation training in reducing trait anxiety. The study evaluated subjects trait anxi
Setler79 [48]

Answer:

The 99% confidence interval for the population mean reduction in anxiety was (1.2, 8.6).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 27 - 1 = 26

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 26 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.7787.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.7787\frac{6.9}{\sqrt{27}} = 3.7

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 4.9 - 3.7 = 1.2.

The upper end of the interval is the sample mean added to M. So it is 4.9 + 3.7 = 8.6.

The 99% confidence interval for the population mean reduction in anxiety was (1.2, 8.6).

6 0
2 years ago
you have a part time job. you work 3 hours on friday and 6 hours on saturday. you also receive an allowance of $20 per a week. y
klemol [59]
$92/week is the amount of money you gained from work combined with your $20/week allowance money. 

92 - 20 = 72 (total money made per week subtract allowance money leaves money made from work)
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You work a total of 9 hours. (3hrs on Fri & 6hrs on Sat added together)
72/9 = 8 (total amount of money made divided by the 9 hrs you worked for - gives amount of money you make per hour)
Thus, you make $8/hr at your part time job.


8 0
3 years ago
To which set of numbers does the number-5 belong? select all that apply
Lelu [443]
A, C, D are the correct answers.

-5 is neither a whole number nor a natural number. This is because negative numbers are not included in these. Hope this helps! Let me know:)
4 0
3 years ago
Which of the following is a type of data that is likely to be normally<br> distributed?
kkurt [141]
It is either A or D, but I think it’s A
8 0
3 years ago
Read 2 more answers
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