QuickHelper

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    Phoniex
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Category > Engineering Posted 15 Jul 2017 My Price 11.00

College Alegbra quiz,

SHOW ALL STEPS FOR SOLUTIONS TO PORBLEMS.

MATH107   Quiz-3

 

 

 

 

 

 

1(0.5). Simplify expression with complex numbers.
Write the answer in form  a+bi,  where a  and b are real numbers.

    (6 – 4i)(5 + 9i)    


  

 

 

2(0.5). Simplify expression with complex numbers.
Simplify. Write the answer in form  a+bi,  where a  and b are real numbers.

   (5 – 4i)2

 

3(0.5). Simplify complex number (i2 = - 1).

    i107

 

    

4(0.5). Solve quadratic equation:   15x + 3x2 = 0   

 

 

 

 

 

5. Solve quadratic equation (the answer might involve i value):   2x2 + 2x + 5 = 0   

 



 

 

 

 

 

6. Find coordinates of vertex, determine if the function has minimum or maximum
value and find that value:


                                     f(x) = 2x2 + 10x + 5   

 

 

 

 

 

 

7. Which one represents graph of the function: f(x) = – x2 + 4x – 10

 

                    A                                           B                                          C

 

 

8. Solve inequality with absolute value

 

|2x – 1| + 7 < 12

 

 

 

 

9. Find x-interval(s) that holds solution for this inequality

 

x2 - 3x > 4

 

10. Find x-interval(s) that holds solution for this inequality

 

2x2 + 3x - 2 < 0

 

 

 

 

 

Answers

QuickHelper
(10)
Status NEW Posted 15 Jul 2017 05:07 AM My Price 11.00

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