lennajaneslaystheday lennajaneslaystheday

10-12-2021
Mathematics

contestada

Simplify the expression 2i(4.5 – 20i) + 3i. Write your answer in the form a + bi.

Respuesta :

jimrgrant1 jimrgrant1

10-12-2021

Answer:

40 + 12i

Step-by-step explanation:

note that i² = - 1

2i(4.5 - 20i) + 3i ← distribute parenthesis by 2i

= 9i - 40i² + 3i

= 9i - 40(- 1) + 3i

= 9i + 40 + 3i

= 40 + 12i

Answer Link

Otras preguntas

which season does the jet stream travel faster

can be used by cells to store energy, form biological membranes, and serve as chemical messengers

Prepare una historia gráfica sobre la difusión de un producto y anote las similitudes y diferencias de cómo se incorpora el objeto de su investigación en cada c

Tim knows the volume and base area of a wooden chest that is in the shape of a rectangular prism. If the volume is 5/24 cubic unit and the base area is 1/5 squ

please help me please!!!!!!!

Multiply and simplify: b3 • b • b4 • b2

A scientist studying earths magnetic field found that at hot springs Arkansas her compass pointed 5 degrees east of true north. In Durango, Colorado she took an

which best explains why Cassius is so intent on convincing Brutus to join with the conspirators?

For each sentence, supply the verb as indicated in parentheses. Kenny’s fans __________ him on to victory. (cheer, active voice)

what is the domain of the function y=3 square root of 6x +42