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harina [27]
3 years ago
8

IF YOU ANSWER CORRECT YOU GET BRAINLIEST!!!!!! AND 10 POINTS!!!!!!!

Mathematics
1 answer:
Irina18 [472]3 years ago
8 0

Answer:

The answer would be 30.

Step-by-step explanation:

180/6 = 30.

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LiRa [457]

Answer:

2^x-4=32\quad :\quad x=\frac{2\ln \left(6\right)}{\ln \left(2\right)}\quad \left(\mathrm{Decimal}:\quad x=5.16992\dots \right)\\\\2^x-4=32 \\\mathrm{Add\:}4\mathrm{\:to\:both\:sides}\\2^x-4+4=32+4\\\mathrm{Simplify}\\2^x=36\\\\apply exponential rule\\x\ln \left(2\right)=\ln \left(36\right)\\x\ln \left(2\right)=\ln \left(36\right)\\x=\frac{2\ln \left(6\right)}{\ln \left(2\right)}

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6 0
3 years ago
How many terms are in the sequence: 1100, 1135, 1170,.......,3725?
Gennadij [26K]

well, the sequence goes, 1100, to 1135, to 1170.... notice, is simply adding 35 to get the next term, so the common difference is 35, and the first term is 1100 of course.


\bf n^{th}\textit{ term of an arithmetic sequence}&#10;\\\\&#10;a_n=a_1+(n-1)d\qquad&#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;d=\textit{common difference}\\[-0.5em]&#10;\hrulefill\\&#10;a_1=1100\\&#10;d=35\\&#10;a_n=3725&#10;\end{cases}&#10;\\\\\\&#10;3725=1100+(n-1)35\implies 3725=1100+35n-35&#10;\\\\\\&#10;3725=1065+35n\implies 2660=35n\implies \cfrac{2660}{35}=n\implies 76=n

6 0
3 years ago
10.
Kay [80]

Answer:

\frac{(82)(2.4)^2}{104.139} \leq \sigma^2 \leq \frac{(82)(2.4)^2}{62.132}

4.535 \leq \sigma^2 \leq 7.602

Now we just take square root on both sides of the interval and we got:

2.2 \leq \sigma \leq 2.8

And the best option would be:

A.  2.2 < σ < 2.8

Step-by-step explanation:

Information provided

\bar X=32.1 represent the sample mean

\mu population mean  

s=2.4 represent the sample standard deviation

n=83 represent the sample size  

Confidence interval

The confidence interval for the population variance is given by the following formula:

\frac{(n-1)s^2}{\chi^2_{\alpha/2}} \leq \sigma^2 \leq \frac{(n-1)s^2}{\chi^2_{1-\alpha/2}}

The degrees of freedom are given by:

df=n-1=83-1=82

The Confidence is given by 0.90 or 90%, the value of \alpha=0.1 and \alpha/2 =0.05, the critical values for this case are:

\chi^2_{\alpha/2}=62.132

\chi^2_{1- \alpha/2}=104.139

And replacing into the formula for the interval we got:

\frac{(82)(2.4)^2}{104.139} \leq \sigma^2 \leq \frac{(82)(2.4)^2}{62.132}

4.535 \leq \sigma^2 \leq 7.602

Now we just take square root on both sides of the interval and we got:

2.2 \leq \sigma \leq 2.8

And the best option would be:

A.  2.2 < σ < 2.8

3 0
4 years ago
Yesterday, Fairlane got 1.2 inches of rain. It got of that rain before 3:00 P.M.
Ugo [173]

Answer: b

Step-by-step explanation: 123212p1233213,12,3l12n321

3,2132333333333333333331321m3

7 0
3 years ago
Is h(x)=3x^3+2x^2+5 even, odd, or neither?
pochemuha

Answer:

Neither even or odd

Step-by-step explanation:

4 0
3 years ago
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