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
BARSIC [14]
3 years ago
13

Multiply the following complex numbers:(7-3i)(8 + 4i)​

Mathematics
1 answer:
mel-nik [20]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Noting that i² = - 1

Given

(7 - 3i)(8 + 4i) ← expand factors using FOIL

= 56 + 28i - 24i - 12i²

= 56 + 4i - 12(- 1)

= 56 + 4i + 12

= 68 + 4i → A

You might be interested in
Can someone help me with this please
Stels [109]
Your answer is 90$ hope this helps and sorry if it’s wrong
8 0
3 years ago
Eliana is reading a 934 page book. She reads 16 pages per day in the book. If x represents the number of days Eliana has spent r
Aleks [24]
On the first day she wen from 934 - 16 pages. Then everyday after that means it would x - 16 pages = PL (PL = Pages Left) so the answer is x - 16 = PL
6 0
4 years ago
Which equation represents the line that has a slope of 4 and passes through the point (2, 7)?​
Wittaler [7]

Answer:

The answer is y = 4x - 1.

Step-by-step explanation:

☆The equation we'll be using: y = mx + b

☆Since we already have the slope. we have to find the y-intercept.

☆y = mx + b \\  \\ 7 = 4(2) + b \\  7 = 8 + b \\  \frac{ - 8 =  - 8 \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }{ - 1 = b \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }

☆Using the information we gathered and was given, we just to put them together.

☆y = 4x - 1

3 0
3 years ago
I need helppppp pleaseeeeeeeee ,,, i need to know what the words are backwards ,, thank you!
Aliun [14]
Uhh, these give me a headache, I think number 2 is array..
7 0
4 years ago
Read 2 more answers
Add 212+(−13) . Write your answer as a mixed number in simplest form.
nordsb [41]

The value of the given expression after addition is 199 and this can not written as a mixed number in the simplest form.

According to the question,

We have the following expression:

212+(-13)

Now, we know that the multiplication of one negative and one positive integers is always positive.

So, we have the following expression:

212-13

199

Now, this number is whole number and it can not be written as a mixed number. It could only have been written as a mixed number when the result would have been in a fraction.

Hence, the value of the given expression after addition is 199 and this can not written as a mixed number in the simplest form.

To know more about addition here

brainly.com/question/19867930

#SPJ1

7 0
1 year ago
Other questions:
  • -8x+32=4(-2-4x)<br>What does X equal ​
    8·1 answer
  • Quick need the answer to to this!
    11·1 answer
  • Can u please help me
    6·2 answers
  • Paola's grandparents started a savings account for
    13·1 answer
  • 7th GRADE MATH hellp​
    11·2 answers
  • The inspection division of the Lee County Weights and Measures Department is interested in estimating the actual amount of soft
    8·1 answer
  • Solve for the value of x.<br><br> x/1.2 = 7
    9·1 answer
  • Please help Me<br> Find The missing values in the ratio table then write equivalent ratios.
    6·1 answer
  • I don't understand how to do percentages please explain​
    9·2 answers
  • Find three consecutive EVEN integers such that the sum of the smallest number and twice the middle number is 20 more than the la
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!