2 years ago

What is the box-and-whisker plot for the data? 18 22 27 19 10 8 24 21

Mathematics

1 answer:

Digiron [165]2 years ago

3 0

Answer: Second one

Step-by-step explanation: The median is 20, so it can only be the first or second one, but the highest number in the data is 27, and the highest number in the data of the first one is 30, so it must be the second one.

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the length of a rectangle is five feet less than its width. If the area of the rectangle is 84 square feet, find its dimensions

KIM [24]

Let
x---------> the length of the rectangle
y--------> the width of the rectangle

we know that
A=84 ft²
[area of rectangle]=x*y-----> 84=x*y-----> equation 1
x=y-5------> equation 2
substitute 2 in 1
84=[y-5]*y-----> 84=y²-5y---------> y²-5y-84=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
y=12
x=y-5-----> x=12-5-----> x=7

the answer is
the length of the rectangle is 7 ft
the width of the rectangle is 12 ft