lilyyy16 lilyyy16
  • 02-12-2020
  • Mathematics
contestada

What is the value of (7 +21)(3 - i)?

Respuesta :

sabrin12A sabrin12A
  • 02-12-2020
(7+21)=28

28(3-I)=

28•3 =84

28•I=28i

28/84=3,5

3,5=I
Answer Link

Otras preguntas

What’s the answer????#4
Lord of the flies QUESTION.... Why doesnt piggy ask for the names of the choirboys?
If one leg of a right triangle is 18 units and the other leg is 24 units, what is the length of the hypotenuse (in units)?
What activities are involved in offering the products customers want?.
Are you aware of human rights violations happening in your community​
What is the mass of a sample of glass (specific heat= 0. 50 J/goC), if it requires 490 J of heat to raise the temperature from –18. 0oC to 0. 0oC?
The following table represents the annual sales of a bakery for the last 7 years since the grand opening
Find all solutions to the equation in the interval [0, 2π). Enter the solutions in increasing order. cos 2x = cos x X = [?], Remember: cos 20 = cos²0 - sin²0
Listed in the Item Bank are individual steps that need to be ordered.
In which part of the brain is body temperature regulated?.