Answer:
340
Step-by-step explanation
Base=10x10=100
Sides= {(12x10)/2}x4=240
Add sides plus base, 240+100=340
Answer:
cristiba is asked to construct only exactly one triangle
Using the t-distribution, the 90% confidence interval for the mean number of absences is given by: (9.22, 11.60).
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:

In which:
is the sample mean.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a two-tailed 90% confidence interval, with 28 - 1 = 27 df, is t = 1.7033.
Researching this problem on the internet, the parameters are given by:
.
Hence the bounds of the interval are given by:
The 90% confidence interval for the mean number of absences is given by: (9.22, 11.60).
More can be learned about the t-distribution at brainly.com/question/16162795
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Steps:
1. Do a proportion
2/3 times x/12
2. Do 12 times 2=24
3. Divide 24 by 3
4. Your answer is 8 girls
Or you could do it this way
Steps:
1. You could have just multiplied the 2 by a 4 to get 8.12 boys divided by 3 boys is 4. That means you multiple the two by 4 to get the girls.
Answer:
your face hahahahhahahahah it's funny ik