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
bekas [8.4K]
3 years ago
6

Explain why (2 + 3i)(2 – 3i) is a REAL number.

Mathematics
1 answer:
gregori [183]3 years ago
3 0

Answer: Complex Number, Real Part, Imaginary Part. 3 + 2i, 3, 2. 5, 5, 0, Purely Real. −6i, 0, − ... Example: add the complex numbers 3 + 5i and 4 − 3i ... Example: (3 + 2i)(1 + 7i) = (3×1 − 2×7) + (3×7 + 2×1)i = −11 + 23i. Why Does That Rule Work

We used the distributive property to multiply a real number by a complex number.(2 − 16i) = (5 − i)(a + bi) = 5a + 5bi −ai + b = (5a + b) +

Step-by-step explanation:

You might be interested in
Factor the expression using the GCF. 18-12
rodikova [14]

Answer:

6(3-2)

Step-by-step explanation:

Find the GCF of both numbers. The GCF is 6. Write it as 6(   -   )

Then, divide both numbers by 6. 18 divided by 6 is 3 and 12 divided by 6 is 2. Fill in the blanks with 3 and 2. A=6(3-2)

7 0
3 years ago
Kari uses a gallon of paint to
andreev551 [17]

Answer:

unknown

Step-by-step explanation:

because you don't know the percentage one gallon takes you cannot be sure how much you need after you get the dimensions and percentage a gallon takes

3 0
3 years ago
Terry had 400 inches of ribbon before he cut pieces of ribbon that were 8 inches long how many 15 inch pieces can terry cut fro
Nikitich [7]
This could be wrong but the remaining pieces he can cut is 3 because if you divide 400 with 8 , it’s 35 as the answer, so then subtract 35 with 15 till you can subtract 15 from it
4 0
3 years ago
Read 2 more answers
Could ΔABC be congruent to ΔADC by SSS? Explain. Yes, but only if AB ≅ DC. Yes, but only if BC ≅ DC. No, because AB is not congr
Sonbull [250]

Answer:

<em>Yes, but only if BC ≅ DC; Option B</em>

Step-by-step explanation:

There are 4 possible ways to determine whether two triangles are congruent, and they are the following ;

ASA ( Angle - Side - Angle ),

SAS ( Side - Angle - Side ),

AAS ( Angle - Angle - Side ), and

SSS ( Side - Side - Side )

It is known here that we must prove these triangles congruence through SSS. A triangle can thus be made possible through the congruence of corresponding sides;

Now if we were to create these triangles it would be that BC and DC are, if the triangles were to coincide with one another, the apparent same length if it were that these two Δs really are ≅. Thus;

<em>Solution; Yes, but only if BC ≅ DC</em>

5 0
3 years ago
Helppppp!!!! Ty ✨:)))))))))
LiRa [457]

Answer:

12/7 or 1 5/7

Step-by-step explanation:

6 * 2 = 12

so

12/7 = 1 5/7

8 0
3 years ago
Read 2 more answers
Other questions:
  • A software designer is mapping the streets for a new racing game. All of the streets are depicted as either perpendicular or par
    8·1 answer
  • What is the largest factor of 16 that is also a perfect cube?
    14·1 answer
  • Divide £30 between 2 people in the ratio 1:2
    10·2 answers
  • Someone please help me with math.
    5·1 answer
  • Which expressions are equivalent to 1/5 x 1/5 x 1/5 x 1/5<br><br><br><br> Choose 2 answers:
    15·1 answer
  • What is the volume of the prism
    11·1 answer
  • Help this question is hard
    8·2 answers
  • Janet is three years older than her sister julie. Janet’s brother is eight years younger than their sister Julie. The sum of all
    11·1 answer
  • If x and y vary inversely and x = 1 when y = 11, find x when y = 5.5.
    6·1 answer
  • The sum of three consecutive even integers is -78. What is the smallest integer? Show all working outs (5)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!