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
djverab [1.8K]
3 years ago
15

Multiply (6 + 2i)(6 - 2i)

Mathematics
2 answers:
Shtirlitz [24]3 years ago
8 0

Answer:

4i^2 - 36

Step-by-step explanation:

(6+2i)(6-2i)

(2i * 2i) = 4i^2

(2i * -6) = -12i

(2i * 6) = 12i

(-6 * 6) = -36

combine like terms

4i^2 - 36

Aleksandr-060686 [28]3 years ago
3 0

Answer:

40

Step-by-step explanation:

(6 + 2i)(6 - 2i)=40

You might be interested in
Confused someone help
jekas [21]

Answer:

y = -5x - 21

Step-by-step explanation:

Given in the question,

equation of a parallel line

y = -5x + 6

point through which it passes

(-4,-1)

Step1

Find the gradient of the equation given, as it is parallel so it will have same gradient

equation of straight line

y = mx + c

where m is gradient

            c is y intercept

y = -5x + 6

m =-5

Step2

Find y-intercept

-1 = -5(-4) + c

-1 = 20 + c

c = -20 - 1

c = -21

Step3

form the equation

y = -5x - 21

8 0
3 years ago
Read 2 more answers
If I did 2 tests a month for four months how many would I get done a month how many would I get done in four months.
AfilCa [17]

Answer: 2 per month

8 per four months

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Do the equations x + y = -2 and 3x + 3y = −6 define the same line? Explain.
tino4ka555 [31]

Answer:

Yes, they do.

Step-by-step explanation:

They both pass through the same points of -2 on the x and y axis.

6 0
2 years ago
maricela bought 2 1/3 pounds of bananas , 1 5/12 pounds of apples , and 3 5/6 pounds of mangoes. How many pounds of fruit did sh
damaskus [11]

Answer:

7 7/12 pounds of fruit

Step-by-step explanation:

First, add all of the whole numbers

2 + 1 + 3= 6 (save for later)

then find a common denominator between the fractions which is 12

1/3 = 4/12

5/6 = 10/12

4/12 + 10/12 + 5/12 = 19/12 or 1 7/12

now, add 1 7/12 + 6 to get you 7 7/12

hope this helps

6 0
3 years ago
Find the 137th odd number.
KIM [24]

The first odd number is 1. The next is 2 more than the previous one.

It's an arithmetic sequence.

The general term of an arithmetic sequence:

a_n=a_1+(n-1)d

a_n - n-th term

a_1 - first term

d - common difference.

We have

a_1=1,\ d=2,\ n=137

Substitute:

a_{137}=1+(137-1)(2)=1+(136)(2)=1+272=273

<h3>Answer: 137th odd number is equal 273.</h3>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Plzzzzz
    11·1 answer
  • What is the height of the support beam?
    10·2 answers
  • Find the percent decrease from 60 cars to 24 cars.
    15·1 answer
  • Describe how the graph of y=|x| and how it is difficult
    5·1 answer
  • Can someone plz plz plz answer my question?Show your work or explain.I will give a thank u with 5 stars and Brainliest.
    10·1 answer
  • What shape has this many sides 44mm,28mm,24mm and 110 angles,40 angles,and 30 angles
    6·2 answers
  • Given that the length and width of a square is 4mm, what would the area be?
    12·1 answer
  • Square RSTU is translated to form R'S'T'U', which has vertices R'(–8, 1), S'(–4, 1), T'(–4, –3), and U'(–8, –3). If point S has
    7·1 answer
  • Helppppppppppppp 20 points
    15·2 answers
  • What is the speed of a horse that runs a distance of 2,592 meters in 144 seconds? ____meters
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!