# math quiz 4 1

For  #1 through #6, please put the answer in a + bi form.

1.   Add  (3  2i) + (-4  4i)

2.   Subtract  (3 2i) (-4 4i)

3.   Multiply 4.    Divide 5.    Square  (1  i)2

To do #6, below, I would use the following table:

 REMAINDER ANSWER 0 1 1 i 2 -1 3 -i

FOR EXAMPLE:

Lets simplify i10.    We divide whatever the exponent is by 4.

So, doing so, we have 4 goes into 10 a total of 2 times, so

2 8

2

We get a remainder of 2, so the answer is -1.   So, we can say that i10 is -1.

#6  (a)   Simplify  i715

(b)   Simplify  (-3i)6

7.  Solve  x2 + 25 = 0

8.   Solve   3x3 + x2  12x  4 = 0

9.   Solve 4x210x  = -3 by completing the square.   Then,

below.

??????CHECK:

10.               Solve  -5x2  +  2x  +  1  =  0 by using the quadratic formula

11.              Using any method you wish, solve x2 = x.

12.    Solve  m6  +  16m3  +  64  =  0

13.     Consider the parabola given by the function

f( x ) = 4x2    5x +  9 , and use f( x ) to do each of the  following

parts.

(a)   Find the vertex of f( x ).

(b)  Determine whether there is a minimum or maximum

of f and then, use that vertex to find the minimum or maximum of f( x ).

(c)   Find the interval where f( x ) is increasing.

14.             Consider the parabola given by the function

y = -2(x  1)2 – 4 .

(a)  Find the vertex.

(b) Determine whether there is a minimum or maximum

and then, use that vertex to find the minimum or maximum.

(c)  Find the interval where the function is decreasing.

15.    Solve .

A.      -13

B.     -1, 7

C.       7

D.    No solution

16.   Solve 17.    Solve 18.   Solve for m.

19.   Solve for g.

20.   Charcoal Gurney  has 100 yd of fencing with which to completely enclose

her rectangular space of briskets.

(a)            If the width of the space is x yards, express the area of the space as a function of the width.

(b)           Use the function in (a) to find the maximum possible area of the space.

##### Looking for solution of this Assignment? ## WHY CHOOSE US?

### We deliver quality original papers

Our experts write quality original papers using academic databases.

### Free revisions

We offer our clients multiple free revisions just to ensure you get what you want.

### Discounted prices

All our prices are discounted which makes it affordable to you. Use code FIRST15 to get your discount

### 100% originality

We deliver papers that are written from scratch to deliver 100% originality. Our papers are free from plagiarism and NO similarity

### On-time delivery

We will deliver your paper on time even on short notice or  short deadline, overnight essay or even an urgent essay