A company has determined that its weekly profit is a function of the number of items that it sells. Which equation could

represent the weekly profit in thousands of dollars, y, when the company sells x items?

Oy? -4x2-100

O y-x50x-300

Ox--- 60y-400

07.-8.200

Step-by-step explanation:

Here, the given options are incomplete.

A. y²  = 4 x²  - 100

B. y  = -x² + 50 x - 300

C.  x =  -y² + 60 y - 400

D. x ²  =  - 6 y² + 200

The number of items sold by the company  = x

The profit ( in thousands) is represented as  = y

Now, here as we are looking for the equation representing profit (y)

So, we can disregard the equations which has terms (x)  and ( x²)  in left.

⇒The equations in the options C and D are eliminated.

Similarly, again we are looking for the equation for Profit , not (profit)².

So,we can disregard the equation which has terms (y²)  in left side.

⇒The equation in the options A is eliminated.

Hence, the needed equation representing the profit y is represented in the option B.

B. y  = -x² + 50 x - 300

the range is 19

step-by-step explanation:

the range is biggest number minus the smallest, so in this case it would be

41 - 22 = 19

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.