2 years ago

Which expression is equivalent to (7 + 2i)(-3 - 4i)?

1 answer:

5 0

B -13 -34i

(7 + 2i)(-3 - 4i)
Take the 7 then times it buy the second bracket 7x(-3-4i) then take 2i from the first bracket and times it with the second bracket 2ix (-3-4i)

Then keep simplifying

You might be interested in

PLEASE HELP ASAP!! URGENT!!

Black_prince [1.1K]

A= 9
B= 11

Make sure to try it

4 0

3 years ago

Two planes leave an airport at noon. If the eastbound plane flies at 660 mph and the westbound plane flies at 600 mph, at what t

Eddi Din [679]

I'm guessing that they took of in the same airport.

Each hour they will separate by 1260 miles or 21 miles each minute

2,000/21 = 95.23 minutes which is 1 hour and 35 minutes

Hope this helps :)

6 0

2 years ago

What's the unit rate of 162 water bottles in 9 cases

lianna [129]

Simplify 162/9 by 3.

162/9= 18
___ ___

9/9= 1

So, basically 18 water bottles.

8 0

2 years ago

PLS HELP WILL GIVE BRAINLIEST

wlad13 [49]

Answer:

32 percent

Step-by-step explanation:

8,000×400÷100

7 0

2 years ago

Solve x: 60 pts if u can figure it out and the first one gets brainiest answer

jenyasd209 [6]

Answer:

11.65

Step-by-step explanation:

3x+99x=102x

1188/102=11.65

6 0

1 year ago

Read 2 more answers