3 years ago

Find the difference of the complex numbers.

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

6 0

Answer:

D. 7 +11i

Step-by-step explanation:

In many situations, you can treat "i" as though it were a variable. Collect terms in the usual way.

(2 +8i) -(-5-3i) = 2 +8i +5 +3i = (2+5) +(8+3)i

= 7 +11i

You might be interested in

Find the value of x in the equation below 4=x/5

victus00 [196]

Answer:

x = 9. Rearrange variables to the left side of the equation: - x = - 5 - 4

Calculate the sum or difference: x=9

Step-by-step explanation:

3 0

1 year ago

Read 2 more answers

Which expression can be used to find 80% of 120?

Vinil7 [7]

Answer:

C.(0.8) (120)

Step-by-step explanation:

0.8 = 80%

of means multiply, therefore, 0.8 x 120 equals 80% of 120.

6 0

2 years ago

Read 2 more answers

Use >, <, or = to solve the following problems below.

Elodia [21]

(6^2)__>__(-6^2)

-5__=__ |-5|

0.372×1,000__<__37.2×100

3 0

2 years ago

Beatrice built about 1/3 of a sandcastle. Linda built 4/7 of the same castle. What fraction of the sandcastle did they build tog

wlad13 [49]

Answer

Find out the what fraction of the sandcastle did they build together .

To prove

Let us assume that the fraction of the sandcastle they build together be x .

As given

$Beatrice\ built\ about\ \frac{1}{3}\ of\ a\ sandcastle.$

$Linda\ built\ \frac{4}{7}\ of\ the\ same\ castle.$

Than the equation becomes

$x = \frac{1}{3} +\frac{4}{7}$

L.C .M of (3,7) = 21

solving

$x = \frac{7 + 3\times4}{21}$

$x = \frac{19}{21}$

Therefore the fraction of the sandcastle did they build together be

$x = \frac{19}{21}$

Hence proved

4 0

3 years ago

No i dont want to download ur answer. <br><br>the area is ___ square units

Zanzabum

Answer: I think it’s 4

Step-by-step explanation: count the squares surrounding the triangle, 4 times 2 is eight 1/2 of that is 4

6 0

2 years ago