A rectangle has a height of X and a width of 7r -4 Express the area of the entire rectangle.
Expression should be expanded.
Area -

7x^2 - 4x

Step-by-step explanation:

The problem states the rectangle has a height of X and width of (7X-4). Rectangle area is height times width.

(x)(7x - 4) = (x)(7x) - (x)(4) = 7x^2 - 4x, from distributive property

P.S. The graphic in your question may be causing confusion. It looks like the pink part is a negative length, and a rectangle can't really have a negative length! I think it is a very poor illustration. They could have done a lot better with it.

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.  

b i think

step-by-step explanation:

not really sure