All categories

2 years ago

What is the value of the product (4 - 21)(6 + 2/)? 20 - 41 20 + 161 28 + 161 28 - 41

Mathematics

1 answer:

xeze [42]2 years ago

3 0

Answer:

28 -4i

Step-by-step explanation:

Perhaps you want the product ...

(4 -2i)(6 +2i)

Multiplying in the usual way, we get ...

(4)(6) +(4)(+2i) +(-2i)(6) +(-2i)(2i)

= 24 +8i -12i -4i^2

Recognizing that i^2 = -1, we can collect terms to get ...

= 24 +i(8 -12) -4(-1)

= 28 -4i

_____

Please note that i = √(-1) is not the same as 1 or /. You may need to edit your question to ensure the correct symbol is used.

You might be interested in

making 10 pounds of Apple Jam requires five pounds of Apple how many pounds of Apple are needed to make eight pounds of apple ja

allochka39001 [22]

10lb. of jam needs 5lb. apple, or 2lb. of jam needs 1lb. apple.
Now we want 8lb. of jam.
Set up a proportion:
2/1=8/x
Solve for x by cross-multiplying.
2x=8
x=4 lb. of apple

5 0

3 years ago

HELP look at photo to answer!!

dybincka [34]

Answer:

The words are blurry I can't view it.

Step-by-step explanation:

3 0

2 years ago

Solve the proportion.

Sedaia [141]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

I need help right now!! Please explain how to solve the question and make sure u know the answer thank you.

Alborosie

Answer:

A dilation factor by 1/2

Step-by-step explanation:

Find the distance of AB and BC which is 4 for each of them. A'B' and B'C' distance is 2. 4 * 1/2 = 2. Therefore the answer must be 1/2.

3 0

3 years ago

Need help answering this

torisob [31]

Hello,

The equation is written in point-slope form, and the formula is as follows: $y-y_{1} = m(x - x_{1})$ .

$x_{1}$ and $y_{1}$ are representing points on the graph.
$y_{1} = 5$ , and $x_{1} = 7$ .

So therefore, the final answer is B, (7, 5).

7 0

3 years ago