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satela [25.4K]
3 years ago
9

HURRY I WILL GIVE BRAINLIEST

Mathematics
1 answer:
bezimeni [28]3 years ago
7 0
36%=36/100=0,36

0,36•47677= 17 163,74

So there's around 17 164 species treatensd with extinction
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Which best explains whether a triangle with side lengths 2 in., 5in., and 4in. is an acute triangle?
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Yes,  I would say so, or a right triangle.
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3. Which equation is written in slope-intercept form?
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Y=mx+b is slope intercept form. it is y=3x+2 where 3/1 is the slope and 2 is the y-intercept.
5 0
2 years ago
Fill in the blank.. HELPPP PLEASEE!!!!!!
Nadya [2.5K]

Answer:

real number

cannot, integers

Step-by-step explanation:

4 0
3 years ago
It is important that face masks used by firefighters be able to withstand high temperatures because firefighters commonly work i
Salsk061 [2.6K]

Answer:

(-\infty, 0.2661)

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

n=60 represent the sample size  

X=12 represent the number of masks that had lenses pop out at 250°

\hat p =\frac{12}{60}=0.2 represent the estimated proportion of masks that  had lenses pop out at 250°

p represent the population proportion of masks that  had lenses pop out at 250°

Confidence =0.9 or 90%

\alpha=0.1 represent the significance level

Confidence interval

On this case we want a interval on this form : (-\infty,\hat p +z_{\alpha}\sqrt{\frac{\hat p (1-\hat p)}{n}})

So the critical value would be on this case z_{\alpha}=1.28 and we can use the following excel code to find it: "=NORM.INV(1-0.1,0,1)"

We found the lower limit like this:

0.2 +1.28\sqrt{\frac{0.2 (1-0.2)}{60}}=0.2661

And the interval would be: (-\infyt, 0.2661)

3 0
3 years ago
PLEASE PLEEASE HELP I PROMISE I WILL GIVE BRAINLIIEST!!!!
Nadusha1986 [10]

Answer:

76, the middle one

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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