Subtract. (3x3+5−3x4)−(−5x4+4+x3) express the answer in standard form. enter your answer in the box.

If we want to subtract this it would be easiest to have this in descending order of exponents. So let's rewrite:

.

The subtraction sign separating those to expressions serves to change all the signs of the second expression to the opposite of what they are now. That looks like this, then:

.

Notice I left off the parenthesis this time. They are no longer needed. Now we will just combine like terms in order from highest exponent to lowest and then the constant. That is

. There you go!

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.