ashleyblue439 ashleyblue439

Today at 2:15 AM
Mathematics

Answered

(4-i)(2+5i) simplify

Answer :

saraalvi00 saraalvi00

Today at 2:21 AM

Answer: 13+18i

Step-by-step explanation:

(4-i)(2+5i)

8+20i-2i-5(i)^2

as we know that i^2=-1

8+18i-5(-1)

8+18i+5

13+18i

Answer Link

Other Questions

Basic Earning Power = (BEP) Net income $600,000 ROA 8% Interest Expenses 225,000 Dud is tax rate 15 35% 35% ultrat IS BEP is

Basic Earning Power = (BEP) Net income $600,000 ROA 8% Interest Expenses 225,000 Dud is tax rate 15 35% 35% ultrat IS BEP is

An iron casting of mass 30kg at 400oc is being cooled and it gives out heat on an average of 920j/s, calculate its temperature after 1 hour

out of sand,clay,loam,and silt which is the best to worst for growing plants the best

What is the slope of this picture

Crops would not have been better if it well

V२ तुम्हारा मित्र वार्षिक परीक्षा मे अनुत्तीर्ण हुआ है । उसे धीरज बंधाते हुए पत्र लिखो।

A person starts walking at a speed of 5 km/hr through half the distance, rest of the distance he covers with a speed 4km/hr. Total time of travel is 9 hours. Wh

which is the highest mountain....??

a plant in water has wide leaves floating on the surface and roots fixed to bottom.explain why it should be a plant in a freshwater habitat and not in a marine

A container with a volume of 5.0 L contains air at a pressure of 2.0 atm. If the volume is reduced to 2.5 L at constant temperature, what will be the resulting

The palace of dream can reflect in my life

Two children are playing with a ball. The girl throw the ball to the boy. The Ball travel in the air, curves 3m to the right, and falls 5m away from the girl. I

5.2 Complete the square identity: sin² x + cos² x=.......... 5.3 Use the identity in 5.2 and rewrite cos² x-sin² x in terms of sin x only: 5.4 Use the identity

3 4 5 6 7 8 > Using complete sentences, discuss the different kinds of real numbers. In your answer, give an example of each type and discuss which set each typ

A carpet is to be laid in a room with length 7.5 m and breadth 3 cm less than the length . Find the area of the carpet

12. An empty density bottle has a mass of 25 g. Its mass is 50 g when full of water and 45 g when full of another liquid. What is the density of the liquid in k

A DIE TOSSED 10 TIMES WHAT IS THE PROBABILITY OF GETTING; LESS THAN 6

All records and forms that make up the patient’s medical record are considered .

a glass flask whose volume is exactly 1000cm3 at 0C is filled with mercury at this temperature when flask and mercury are heated to 100C .15.2 of mercury overfl