Determine the interquartile range for the data. 16, 19, 25, 20, 22, 21, 17, 20

Mathematics

1 answer:

Roman55 [17]3 years ago

5 0

Answer:

the answer is 15 subtract the highest number from the lowest

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Which equation represents a line which is parallel to the line y=3x–8

Lena [83]

Answer:

The equation of line which is parallel to the given line is y = 3 x + k.

Step-by-step explanation:

The equation of the line is

y = 3 x - 8

Compare with the standard equation

y = mx + c

The slope of line is

m = 3

So, the line parallel to the given line is

y = 3 x + k

where, k is any real number.

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3 years ago

What does it mean to be “in the red?”

Andreas93 [3]

<span>Debit is losing money, and credit is gaining money, so if you have more debit than credit then you have negative money. Negative money, or being in debt, is "in the red", so B is correct.</span>

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4 years ago

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A country's population in 1994 was 182 million. In 2002 it was 186 million. Estimate the population in 2004 using the exponentia

iogann1982 [59]

$\bf =ae^{kt}\qquad 
\begin{cases}
1994\impliedby \textit{year 0, starting point}\\
t=0\qquad P=182
\end{cases}\implies 182=ae^{k0}
\\\\\\
182=a\cdot e^0\implies 182=a\cdot 1\implies 182=a
\\\\\\
thus\qquad P=182e^{kt}\\\\
-------------------------------\\\\$

$\bf P=182e^{kt}\qquad 
\begin{cases}
2002\impliedby \textit{8 years later}\\
t=8\qquad P=186
\end{cases}\implies 186=182e^{k8}
\\\\\\
\cfrac{186}{182}=e^{8k}\implies ln\left( \frac{93}{91} \right)=ln(e^{8k})\implies ln\left( \frac{93}{91} \right)=8k
\\\\\\
\cfrac{ln\left( \frac{93}{91} \right)}{8}=k\implies 0.0027\approx k\implies \boxed{P=182e^{0.0027t}}$

what's the population in 2004? well, from 1994 to 2004 is 10 years later, so t = 10

plug that in, to get P for 2004

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4 years ago

Any other thoughts i dont know which to choose

musickatia [10]

He made his error in step 2 he already flipped 5/8 in step one then he flipped it again in step 2

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3 years ago

In the coordinate plane, three vertices of rectangle ABCD are A(0, 0), B(0, a), and D(b, 0). What are the coordinates of point C

Rasek [7]

Ans is (b, a)
although we dont kn the values of a and b,
the x coordinate of c must be same as point D,and y coordinate of C must be same as point B.U can draw a graph to help urself understand better

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3 years ago