sidneybean2002 sidneybean2002

14-05-2020
Mathematics

contestada

Simplify the expression:
(7 +9i)(8 - 10i)

56 + 2i + 90
56 + 2i – 90i^2
97 + 72i
146 + 2i

Respuesta :

SalemRider SalemRider

14-05-2020

The answer is 146+2i

ur welcome

Answer Link

Otras preguntas

8. Dua benda bermuatan masing-masing 3 x 10- 6C dan 1 x 10-6C. Jarak dua muatan tersebut adalah 30 cm. maka gaya yang dialami oleh kedua muatan adalah .... 0,5

The graph of the function f(x) = (x – 4)(x + 1) is shown below. On a coordinate plane, a parabola opens up. It goes through (negative 1, 0), has a vertex at (

Analysis of a certain complex compound shows that it contains phosphate groups, ribosegroups, and pyrimidines. Based on this information, which of the following

Which+of+the+following+notarial+certificates+must+be+signed+in+the+presence+of+a+ notary

Which of the following is used to adjust the pressure that the rolls apply to the electrode? 1) Wire tension control knob 2) Drive roll outside diameter 3) Indu

Kay and her brother, Tom, were going to the downtown library for the afternoon. They walked into the cool, marbled room and Kaylooked up at the painted ceiling.

Solve 5 sin(2x) = 3 for the two smallest positive solutions A and B, with A A = -------B = -------Give your answers accurate to at least two decimal places. Sol

what i sthe meaning of a unit test

What compound has phase at room temperature is solid and melting point is 680 degrees and does have conduct electricity and does have soluble in water

2. At what distance the load is 15 cm away from the Calculate the magnitude of effort from the given diagram. L = 800N Load arm 50cm Effort arm 150cm [Ans: 90 c