annameghan
annameghan
03-10-2017
Mathematics
contestada
rationalize the denominator of (click photo)
Respuesta :
liemonder
liemonder
03-10-2017
[tex]\frac{\sqrt{-49}}{(7-2i)-(4+9i)}=\\ \frac{\sqrt{-1*7*7}}{3-11i}=\\ \frac{7i}{3-11i}*\frac{3+11i}{3+11i}=\\ \frac{(7i)*(3+11i)}{3^2-(11i)^2}=\\ \frac{21i+77i^2}{9+121}=\\ \frac{21i-77}{130}=\\ \frac{-77+21i}{130}[/tex]
so it is the last option
Answer Link
VER TODAS LAS RESPUESTAS ( 41+ )
Otras preguntas
what is the appropriate discount rate to use only if the proposed investment is a replica of the firm's existing operating activities? multiple choice question.
which one of the following statement is true? a) coral flourishes best in deep cold sea waters. b) wind is a major generator of wave action along coast, therefo
the nurse is assessing a client with an ulcer for signs and symptoms of hemorrhage. the nurse interprets which condition as a sign/symptom of possible hemorrhag
6. which primary interventions are most appropriate for the client who survived an earthquake and is presenting with sharp abdominal pain; decreased pulse press
a project has a unit sales price of $13.39, a variable cost per unit of $5.48, fixed costs of $3,000, and depreciation expense of $830. ignore taxes. what is th
when preparing to conduct a nursing history and assessment on a patient transferred from the emergency department (ed) whose family believes the patient to be a
a psychological process through which unsatisfied wants or needs lead to drives that are aimed at goals or incentives is known as
what does macoby suggest is a reason for boys and girls different styles of play? group of answer choices
the statement a kodak all-in-one printer may cost a little more, but you'll pay far less for replacement ink than you will with other printers . a. gains attent
why is the use of anatomically correct dolls to test small chilren for signs of sexual abuse contentious?
