001071376 001071376

25-10-2018
Mathematics

contestada

Which is the product of the following numbers?

−4 (−3 + 9i )( 5 − 6i )

Respuesta :

jimrgrant1 jimrgrant1

25-10-2018

expand (- 3 + 9i )(5 - 6i ) using the FOIL method

= - 4 (- 15 + 18i + 45i - 54i² ) → i² = (√- 1 )² = - 1

= - 4 (- 15 +63i + 54 )

= - 4 (39 + 63i ) ( distribute by - 4 )

= - 156 - 252i ← in standard form

Answer Link

Otras preguntas

The beach boys formed apple records when they decided to take over their own business affairs.

A=4 B=5 C=10 what is 4a-7

what is the DACA and what does the DACA do?

Why does a business owner lower the price of products that are not selling quickly?

The value of the cumulative standardized normal distribution at z is 0.8770. what is the value of z?

Drag the values into the boxes to classify each number as rational or irrational[tex] \sqrt{ \frac{4}{9} } [/tex][tex] \sqrt{ \frac{2}{24} } [/tex][tex] \sqrt{1

A patient of normal weight asks the nurse for dietary guidelines for maintaining her weight. what does the nurse teach the patient?

which is true about the recovery program alcoholics anonymous A) its members are over 21 B) it requires a small membership free C) it members are not required

Is 12 minutes to drive 30 lapse; 48 minutes to guide 120 laps equivalent to each other

Cecilia is conducting research using public health records to examine flu outbreaks among public school students. since her research does not require her to dis