All categories

2 years ago

Does anyone know how to simplify this -4i(2+3i)???

Mathematics

2 answers:

MatroZZZ [7]2 years ago

6 0

Answer:

assuming that i is a complex number then -8i+12=4(3-2i)

Artist 52 [7]2 years ago

3 0

Answer:

Step-by-step explanation:

-4i(2+3i)

-8i-12i

You might be interested in

Can someone help me pls

IgorLugansk [536]

250 millilitres

There are 2000 millilitres in 2 litres.
so 2000/8= 250ml

the cup holds 250ml

Hope I helped

6 0

2 years ago

Which polynomial does this group of times represent

rodikova [14]

The group of tiles represent answer A. There are 6 x² tiles, 3 x tiles, and 1 tile.

4 0

2 years ago

Read 2 more answers

Lisa is 6 centimeters taller than her friend Ian. Ian is 10 centimeters taller than Jim. Every month, their heights increase by

Temka [501]

Lan is 146 centimeters tall now.

<u><em>Explanation</em></u>

Let, Lan's current height is $h$ centimeters

As Lisa is 6 centimeters taller than Lan and Lan is 10 centimeters taller than Jim, so Lisa's current height = $(h+6)$ centimeters and Jim's current height = $(h-10)$ centimeters.

Every month, their heights increase by 2 centimeters.

So, after 5 months.....

Lan's height = $h+(2*5)=(h+10)$ centimeters,

Lisa's height = $(h+6)+(2*5)= (h+16)$ centimeters and

Jim's height = $(h-10)+(2*5)= h$ centimeters

Given that, the sum of Ian's and Jim's heights will be 140 centimeters more than Lisa's height in 5 months. So the equation will be....

$(h+10)+h= (h+16)+140\\ \\ 2h+10=h+156\\ \\ 2h-h=156-10\\ \\ h=146$

So, the current height of Lan is 146 centimeters.

7 0

2 years ago

Dan was thinking of a number. Dan adds 10 to it, then doubles it and gets an answer of 56.6. What was the original number

evablogger [386]

Answer:

23.3 is the answer to this question

3 0

2 years ago

If a car changes its velocity from 32 km/hr to 54 km/hr in 8.0 seconds, what is its acceleration?

densk [106]

2.8 km/hr/sec, B is the answer

6 0

2 years ago

Read 2 more answers