1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
KATRIN_1 [288]
4 years ago
6

Which complex number has an absolute value of 5?

Mathematics
2 answers:
Bess [88]4 years ago
5 0
For this case we can use the Pythagorean theorem to solve the problem.
 We have then for the following complex number:
 -3 + 4i

 Using the Pythagorean theorem:
 \sqrt{(-3)^2+(4)^2}
 Rewriting we have:
 \sqrt{9+16}
 \sqrt{25}
 5
 Answer:
 
A complex number that has an absolute value of 5 is:
 
A)–3 + 4i
natali 33 [55]4 years ago
4 0
A. -3+4i Square both numbers, add them, then find the square root. Essentially, use the Pythagorean theorem. -3^2 + 4^2 9 + 16=25 Square root of 25 is 5
You might be interested in
The radius of a circle is 4 feet. what is the angle measure of an arc pi feet long?
julsineya [31]

Answer:

Step-by-step explanation:

7 0
2 years ago
Need help for 18) 21) Solve each equation and check. Show all work please
Alexxandr [17]
18) (10)7d/10=35(10)
7d/7=350/7
d=50
21) 3/4 w=27
(4/3)3/4 w=27(4/3)
w=36
Hope this helps!
5 0
3 years ago
Polygons ABCD and A'B'C'D' are shown on the following coordinate grid:A coordinate grid is shown from positive 6 to negative 6 o
Blababa [14]
<span>A(2, -2), B(4, -2), C(1, -3), D(5, -3).

A'(1, 2), B'(1, 4), C'(2, 1), D'(2, 5)

That looks like a rotation 90 degrees around the origin then a translation.  

Let's do the rotation ABCD->A"B"C"D"

The rotation is (x,y)->(-y,x)

</span>A"(2, 2), B"(2,4), C"(3,1), D"(3,5).

Compare to
 
A'(1, 2), B'(1, 4), C'(2, 1), D'(2, 5)

we need to translate one unit to the left.

Answer: 90 degree rotation around the origin then translation by (-1,0)

5 0
3 years ago
Read 2 more answers
What are the solutions to the equation (2x – 5)(3x – 1) = 0?
user100 [1]

Answer: x=\frac{5}{2}, x=\frac{1}{3}

Explanation:

The equation is:

(2x-5)(3x-1)=0

The term on the left consists of a product of two different factors: therefore, this product can be zero if either the first term (2x-5) or the second term (3x-1) is equal to zero.

This means that we can solve separately for the two terms:

2x-5=0\\3x-1=0

Solving the first equation:

2x-5=0\\2x=5\\x=\frac{5}{2}

Solving the second equation:

3x-1=0\\3x=1\\x=\frac{1}{3}

8 0
3 years ago
Read 2 more answers
Help me please don't know this
larisa86 [58]

n/5 = -1/5

5n = -5

<u>n = -1</u>

n - 13 = -12

n = -12 + 13

<u>n = 1</u>

n + 15 = -10

n = -10 - 15

<u>n = -25</u>

-5n = 1

<u>n = -1/5</u>

4 0
3 years ago
Read 2 more answers
Other questions:
  • Finds the height of a triangle with a base of 35 ft and an area of 262.5 ft2
    12·1 answer
  • Write a phrase for y + 9
    10·2 answers
  • Math please help me with it
    15·1 answer
  • Which is the best approximation of 90?<br> A.9.5<br> B.11.4<br> C.7.6<br> D.11.1
    11·2 answers
  • Which equals the product of (x – 3)(2x + 1)
    13·2 answers
  • If (-1, y) lies on the graph of y=2^2x then y=
    10·1 answer
  • Help me find the error <br> plz i beg
    10·1 answer
  • A discount voucher offering 15% off is used to pay a bill. After using the voucher, the bill is reduced to £36.72. How much was
    10·1 answer
  • HELP PLEASE DUE IN 3 MINUTES
    13·1 answer
  • Help me please ;-;
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!