Sachiko is framing the border of a square picture. if she knows the area of the picture, how could sachiko determine the amount of framing material she needs to buy?

Amount of framing material she need to buy  = 4a, where a is the side of square.

a is found out by taking square root of area of picture.

Explanation:

 Let the side of square be a. The area of a rectangle is breadth x width. Here breadth = width = side of square

 Area of square = a x a =

It is given that area of picture is known, so she can find side of the square by finding square root of the area.

The perimeter of square is given by 4 times the side of square.

We know the side of the square, so we can calculate the perimeter.

Amount of framing material she need to buy = Perimeter of square = 4a

see below

step-by-step explanation:

7.   there are 10 data points in the set.   the middle point is between 5 and 6.   the middle point in the top half is 8   and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term   point 8 = 100   point 3 = 88

iqr = 100-88 = 12

final   point 8 = 93   point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6.   b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical .   there is an outlier for the males that skews the data

5.   the   iqr is a better measure of spread for the movies and basketball games.   since the basketball game has an outlier, we do not want to use standard deviation for measurement.  

3.   the exam median is much higher than the class median.   the median line is farther to the right on the exams

2.   there is no way to tell what the means are from the box and whisker plots.