Project #63519 - Math 105 Quiz 3

1  of 20

 

Solve for x.

8x - 7x = 18

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-18

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

Description: https://ondemand.questionmark.com/resources/400178/topicresources/916983931/05b.JPG

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

0

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

18

 

 

 

Question

 

2  of 20

 

Solve for p.



   
   
   
   

 

3  of 20

 

The graph shows the hours studied and the exam grades obtained on a finite math exam for 8 students. (The two points on the line do NOT represent any of the eight students.) The line of best fit, the line graphed on the coordinate system, can be used to approximate the test grade the average student receives for the number of hours they study. 



Find the equation of the line of best fit.

 

4  of 20
Graph the equation using the slope and y-intercept.


 





 
   
   
   

 

 

 



   
   
   
   

 

 

   
   
   
   



 

Question

 

5  of 20

 

Determine whether the value is a solution to the equation.

2x2 - x + 9 = 37

x = 4

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOn.gif 

Yes

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

No

 

6  of 20

 

Determine whether the graph is the graph of a function.

   
   

 

 

 

 

 

 

 

 

Question

 

7  of 20

 

Solve the formula for the specified variable.

  for n
   
   
   
   

 

8  of 20

 

Combine like terms.

-3(8r + 6) + 4(5r + 2)

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-42r

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-4r - 10

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-4r + 6

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

5r + 3

 

9  of 20

 

Evaluate.

2x3 + 2x2 + 11

for x = -3

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-49

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-37

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-35

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

-25

 

10  of 20

 

Translate the statement into a mathematical equation.

3 times a number is 2 less than 4 times the number.

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

3x = 2 - 4

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

3x = 2 - 4x

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

3x = (2 - 4)x

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

3x = 4x - 2

 

1  of 20

 

Find the vertex of the parabola.

f(x) = 5x2 - 30x + 40

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

(-5, 3)

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

(-3, -5)

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

(-3, 5)

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

(3, -5) 

 

 

 

 

 

 

 

 

 

 

 

 

 

Question

 

12  of 20

 

Determine whether the ordered pair is a solution to the equation.

   
   

 

13  of 20

 

Write the mathematical expression as a phrase.

x - 9

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

9 increased by x

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

9 decreased by x

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

9 less than x

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

x less than 9

 

 

 
14  of 20
Translate the statement into a mathematical equation.

The sum of 4 times a number and 4, then divided by 2, is 2.
   
   
 
15  of 20
Solve the formula for the specified variable.

S = 2πrh + 2πr2     for h

 

 

   
   
   
   

 

16  of 20

 

Evaluate.

7x2 + 9y

for x = 3, y = 10

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

153

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

531

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

727

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

1,260

 

17  of 20
Graph the equation by plotting points.



 

18  of 20

 

Indicate whether the relation is a function.

{(2, 3), (2, -3), (4, 2), (8, -4), (10, 9)}

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

Yes

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

No

 

 

Question

19  of 20
Find the value of the indicated variable for the values given.

;  determine C when F = 104°

 

   
   
   
   

 

20  of 20

 

Determine whether the values are a solution to the equation.

y = x3 + 2x - 8 

x = 2,  y = 25

 

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

Yes

Description: https://ondemand.questionmark.com/resources/400178/system/qmRadioOff.gif 

No

 

 

 

Subject Mathematics
Due By (Pacific Time) 03/30/2015 12:00 am
Report DMCA
TutorRating
pallavi

Chat Now!

out of 1971 reviews
More..
amosmm

Chat Now!

out of 766 reviews
More..
PhyzKyd

Chat Now!

out of 1164 reviews
More..
rajdeep77

Chat Now!

out of 721 reviews
More..
sctys

Chat Now!

out of 1600 reviews
More..
sharadgreen

Chat Now!

out of 770 reviews
More..
topnotcher

Chat Now!

out of 766 reviews
More..
XXXIAO

Chat Now!

out of 680 reviews
More..
All Rights Reserved. Copyright by AceMyHW.com - Copyright Policy