Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. combine as indicated by the signs.

x+2/x+4 - x-1/x+6=

answer:

5

x

+

16

(

x

+

4

)

(

x

+

6

)

step-by-step explanation:

to write  

x

+

2

x

+

4

as a fraction with a common denominator, multiply by  

x

+

6

x

+

6

.

x

+

2

x

+

4

⋅

x

+

6

x

+

6

−

x

−

1

x

+

6

to write  

−

x

−

1

x

+

6

as a fraction with a common denominator, multiply by  

x

+

4

x

+

4

.

x

+

2

x

+

4

⋅

x

+

6

x

+

6

−

x

−

1

x

+

6

⋅

x

+

4

x

+

4

write each expression with a common denominator of  

(

x

+

4

)

(

x

+

6

)

, by multiplying each by an appropriate factor of  

1

.

tap for more

(

x

+

2

)

(

x

+

6

)

(

x

+

4

)

(

x

+

6

)

−

(

x

−

1

)

(

x

+

4

)

(

x

+

4

)

(

x

+

6

)

combine the numerators over the common denominator.

(

x

+

2

)

(

x

+

6

)

−

(

x

−

1

)

(

x

+

4

)

(

x

+

4

)

(

x

+

6

)

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.  

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: