3 years ago

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

Mathematics

1 answer:

mel-nik [20]3 years ago

3 0

Answer:

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

The population of the country in 2003 was blank million.

kondor19780726 [428]

Solution

We are given the population to be

$A=930.1e^{0.02t}$

The population of the country in 2003 is

$930.1millions$

8 0

1 year ago

The neighborhood ice cream truck driver has to pay $650.00 a week to rent his truck. Each ice cream cone costs $0.75 to make and

Mice21 [21]

It would be 1.60x-.75x-650=100 i believe bc you would need to subtract the cost of everything that’s due and find what x is to make it equal 100$ profit

7 0

3 years ago

Read 2 more answers

Question 6

alex41 [277]

Answer: 33%

Step-by-step explanation:

3 0

3 years ago

How sq ft in a room 12 x 12

SSSSS [86.1K]

Answer:

$\boxed{\fcolorbox{144 ft^{2} }}$

3 0

3 years ago

Solve the logarithmic equation rounding to the nearest ten-thousandth<br> 3 log 2x = 4

Rashid [163]

First, divide both sides by 3 to get log2x = 4/3.

Since you know a regular log has base 10, another way to write log2x = 4/3 is 10^(4/3) = 2x.

Then, divide both sides by 2.

x = 10.7722

6 0

3 years ago

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

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