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3 years ago

15

A set of data are put in numerical order, and a statistic is calculated that divides the data set into two equal parts. Which of

the following statistic was computed? A: mean B: interquartile range c: range D: median

1 answer:

zvonat [6]3 years ago

7 0

Median because the median is the MIDDLE of the data when ordered from least to greatest.

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How do I verify the identity: sec(t)+1/tan(t)=tan(t)/sec(t)-1

kompoz [17]

$\bf \textit{Pythagorean Identities}
\\ \quad \\
sin^2(\theta)+cos^2(\theta)=1
\\ \quad \\
1+cot^2(\theta)=csc^2(\theta)
\\ \quad \\
\boxed{1+tan^2(\theta)=sec^2(\theta)}\implies tan^2(\theta)=sec^2(\theta)-1\\\\
-----------------------------\\\\
\cfrac{sec(x)+1}{tan(x)}=\cfrac{tan(x)}{sec(x)-1}\\\\
-----------------------------\\\\$

$\bf \cfrac{sec(x)+1}{tan(x)}\cdot \cfrac{sec(x)-1}{sec(x)-1}\impliedby \textit{using the conjugate}\\\\
-----------------------------\\\\
recall\qquad \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-----------------------------\\\\
thus\qquad \cfrac{sec^2(x)-1^2}{tan(x)sec(x)-1}\implies \cfrac{sec^2(x)-1}{tan(x)sec(x)-1}
\\\\\\
\cfrac{\underline{tan^2(x)}}{\underline{tan(x)} sec(x)-1}\implies \cfrac{tan(x)}{sec(x)-1}$

4 0

4 years ago

Help porfavor, please

lakkis [162]

Answer:

Option A, (-7, -3)

Step-by-step explanation:

The answer is: Option A, (-7, -3)

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3 years ago

Can you list the factors of these please

shusha [124]

Answer:

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Answer:

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Step-by-step explanation:

It is D because they cannot be negative feet away and if the fisherman is 12ft above water and the diver is 40ft below than 40 + 12 = 52. Hope this helps.

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3 years ago

The expression 7d gives the number of days in d weeks . Evaluate 7d for d=12. How many days are in 12 weeks?

RSB [31]

Answer:

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Step-by-step explanation:

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3 years ago

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