Question 1

Use synthetic division to divide.
- ÷ (x - 5)

Accepted Answer

A)   
B)   
C)   
D)

Question 2

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.
-(-2.5, 4.8) and (9.5, 9.8)

Accepted Answer

A)  169 
B)  13 
C)  17 
D)

Question 3

Evaluate.
-

Accepted Answer

A)  3 
B)  102 
C)  -42 
D)  42

Question 4

Solve the problem.
-The Wellspring Company has a fleet of seven trucks which get gas mileages of 19, 8, 16, 14, 18, 8, and 25 miles per gallon, respectively. What is the mean gas mileage for the fleet? Round your answer to the nearest mpg.

Accepted Answer

A)  14 mpg 
B)  18 mpg 
C)  16 mpg 
D)  15 mpg

Question 5

Use synthetic division to divide.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 6

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.
-(-0.5, 0.8) and (-3.8, -2.6)

Accepted Answer

A)   
B)   
C)   
D)  21.73

Question 7

Solve.
-Let f(x) = 3x + 8 and g(x) =  + 2. Find f(7) + g(7) .

Accepted Answer

A)  176 
B)  170 
C)  178 
D)  168

Question 8

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.
-

Accepted Answer

A)   
B)   
C)   
D)

Question 9

Find the mean.
-8.4, 8.6, 6.8, 8.6, 6.6

Accepted Answer

A)  8.6 
B)  6.5 
C)  8.4 
D)  7.8

Question 10

Give the equation for a circle with the given center and radius.
-Center at (0, -9), radius 7

Accepted Answer

A)   
B)   
C)   
D)

Question 11

Find the median.
-13, 57, 275, 215, 378, 470

Accepted Answer

A)  275 
B)  215 
C)  201.5 
D)  245

Question 12

Evaluate.
-

Accepted Answer

A)  -150 
B)  -630 
C)  1060 
D)  150

Question 13

Find any modes that exist.
-20, 21, 46, 21, 49, 21, 49

Accepted Answer

A)  32.4 
B)  21 
C)  46 
D)  49

Question 14

Give the equation for a circle with the given center and radius.
-Center at (0, 1), radius

Accepted Answer

A)   
B)   
C)   
D)

Question 15

Evaluate.
-

Accepted Answer

A)  4 
B)  -4 
C)  -5 
D)  0

Question 16

Find the center and the radius of the circle.
-

Accepted Answer

A)  (-8, -7), r = 64 
B)  (-7, -8), r = 64 
C)  (7, 8), r = 8 
D)  (8, 7), r = 8

Question 17

Solve using matrices.
--5x - 7y - z = -60 x + 8y - 5z = 27
9x + y + z = 22

Accepted Answer

A)  (1, 7, 6) 
B)  (7, 6, 1) 
C)  (1, 6, 7) 
D)  (-1, 7, 2)

Question 18

Solve the problem.
-Jeremy's car gets 294 miles of highway driving on 7 gallons of gasoline. What is the mean number of miles expected per gallon -- that is, what is its gas mileage?

Accepted Answer

A)  43 mpg 
B)  44 mpg 
C)  42 mpg 
D)  41 mpg

Question 19

Find the midpoint of the segment with the given endpoints.
-(0, -9) and (6, 3)

Accepted Answer

A)  3, - 3 
B)  - 3, - 6 
C)  6, -6 
D)  -6, -12

Question 20

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.
-(-338,1462) and (935, -398)

Accepted Answer

A)   
B)   
C)   
D)

Exam 14: Calculating Means and Medians of Data Sets

Use synthetic division to divide. - ÷ (x - 5)

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places. -(-2.5, 4.8) and (9.5, 9.8)

Evaluate. -

Solve the problem. -The Wellspring Company has a fleet of seven trucks which get gas mileages of 19, 8, 16, 14, 18, 8, and 25 miles per gallon, respectively. What is the mean gas mileage for the fleet? Round your answer to the nearest mpg.

Use synthetic division to divide. -

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places. -(-0.5, 0.8) and (-3.8, -2.6)

Solve. -Let f(x) = 3x + 8 and g(x) = + 2. Find f(7) + g(7) .

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places. -

Find the mean. -8.4, 8.6, 6.8, 8.6, 6.6

Give the equation for a circle with the given center and radius. -Center at (0, -9) , radius 7

Find the median. -13, 57, 275, 215, 378, 470

Evaluate. -

Find any modes that exist. -20, 21, 46, 21, 49, 21, 49

Give the equation for a circle with the given center and radius. -Center at (0, 1) , radius

Evaluate. -

Find the center and the radius of the circle. -

Solve using matrices. --5x - 7y - z = -60 x + 8y - 5z = 27 9x + y + z = 22

Solve the problem. -Jeremy's car gets 294 miles of highway driving on 7 gallons of gasoline. What is the mean number of miles expected per gallon -- that is, what is its gas mileage?

Find the midpoint of the segment with the given endpoints. -(0, -9) and (6, 3)

Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places. -(-338,1462) and (935, -398)