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ser-zykov [4K]
3 years ago
10

Is The polar form of a complex number is unique?

Mathematics
1 answer:
Pie3 years ago
6 0

Answer:

  no

Step-by-step explanation:

The angle in the polar form of a complex number can have any multiple of 2π radians added to it, and the number will be the same number. That is, there are an infinite number of representations of a complex number in polar form.

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Solve 2x2 – 6x + 10 = 0 by completing the square.
Ugo [173]

Answer:

Step-by-step explanation:

2x^2-6x+10=0

2(x^2-3x)+10=0

2(x-(3/2))^2-9/4)+10=0

2(x-(3/2))^2+10-9/2=0

2(x-(3/2))^2+(20-9)/2=0

2(x-(3/2))^2+11/2=0

2(x-(3/2))^2=-11/2

square is always positive so there is no solution

5 0
3 years ago
Study the pattern of numbers given below and write the rule that describes the pattern 1,3,9,27,81
Pani-rosa [81]
Multiply each number by 3
1x3=3
3x3=9
9x3=27
27x3=81
8 0
3 years ago
write the slope-intercept form of the line with a slope of 2 and a y-intercept of -4. include your work in your final answer.
IgorLugansk [536]
I cant really show you how to graph this but i can try to explain it. you would make a 4 quadrant graph and do rise over run.
1)start by making the graph
2) on the line of the graph marked Y is where you would put -4
3) From -4, you would go up (rise) by 2 and go over to the right 1 where you end is the slop

5 0
4 years ago
8x+4y=-2<br> -12x+5y=-8<br> What is the answer
tester [92]

Answer:

x= 1/4 .....................

y=-1

7 0
3 years ago
The volume of a right cylinder is 2,000π cubic feet, and the height is 20 feet. What is the length of the radius in feet?
laila [671]

Answer:

r = 10 ft

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

<u> Geometry</u>

Volume of a Cylinder Formula: V = πr²h

  • <em>r</em> is radius
  • <em>h</em> is height

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

Volume <em>V</em> = 2000π ft³

Height <em>h</em> = 20 ft

Radius <em>r</em> = unknown

<u>Step 2: Solve for </u><em><u>r</u></em>

  1. Substitute in variables [Volume of a Right Cylinder Formula]:                      2000π ft³ = πr²(20 ft)
  2. [Division Property of Equality] Isolate <em>r</em> term:                                                 100 ft² = r²
  3. Rewrite:                                                                                                             r² = 100 ft²
  4. [Equality Property] Square root both sides:                                                    r = 10 ft
8 0
3 years ago
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