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AfilCa [17]
2 years ago
7

(2 + 3i) + (3 – 4i) (3 – 5i) – (–2 – i) (2 − 4i)(1+ 3i) 2i(−1+ 3i)

Mathematics
1 answer:
grandymaker [24]2 years ago
6 0

Answer:

See below ~

Step-by-step explanation:

<u>Question 1</u>

  • (2 + 3i) + (3 - 4i)
  • <u>5 - i</u>

<u>Question 2</u>

  • (3 – 5i) – (–2 – i)
  • 3 - 5i + 2 + i
  • <u>5 - 4i</u>

<u>Question 3</u>

  • (2 − 4i)(1+ 3i)
  • 2 - 4i + 6i - 12i²
  • <u>14 + 2i</u>

<u>Question 4</u>

  • 2i(-1 + 3i)
  • -2i + 6i²
  • <u>-6 - 2i</u>
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Someone please help me
yuradex [85]

Answer:

112in²

Step-by-step explanation:

Formulas: V = \frac{lwh}{3}, V = lwh

Sub: v = \frac{4 x 4 x 6}{3}

Solve: 32

Sub: v = 4 x 4 x 5

Solve: 80

V = 80 + 32

V = 112

<u>The total volume of the figure is 112in²</u>

3 0
2 years ago
What’s 7,040 divide by 3 using long division
gizmo_the_mogwai [7]

Answer:

Dividing 7,040 by 3 using long division method it gives the quotient  <u>2346</u> and the remainder <u>2</u>.

Step-by-step explanation:

Given:

7,040 divide by 3 using long division.

Now, to divide using long division method:

Step 1: Divide 7 by 3. 3 x 2 =6.

So, 1 will be remainder.

Step 2: Bring 0 down next to 1. So, now the new number is 10 .

Divide 10 by 3. 3 x 3 = 9.

Remainder is 1

So, quotient  is 23 till now.

Step 3: Bring 4 down next to 1. The number is now 14.

Divide 14 by 3. 3 x 4 = 12.

Thus, remainder is 2.

Step 4: Bring 0 next to 2. Getting the new number 20.

So, divide 20 by 3. 3 x 6 = 18.

Thus, the remainder is 2.

So, the quotient is 2346.

And the remainder is 2.

Therefore, dividing 7,040 by 3 using long division method it gives the quotient 2346 and the remainder 2.

3 0
3 years ago
Read 2 more answers
Elijah gets paid $15.50 per hour in addition to a weekly salary of $50. This week he wants to earn more than $400. How many hour
8090 [49]
H=number of hours
m=total salary
m=15.50h+50
put 400 in for m
400=15.50h+50
now solve for h
400=15.50h+50
-50. -50
350=15.50h
Divide 350 by 15.50to get your final answer
you get a long decimal so I rounded it.
22.6 hours
4 0
3 years ago
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inysia [295]

Answer:

0

Step-by-step explanation:

Jordan hasn't got enough money to buy any books, as $11.40<$280.

7 0
2 years ago
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pav-90 [236]

Answer:

girl

Step-by-step explanation:

5 0
3 years ago
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