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katrin [286]
3 years ago
10

Multiply the following complex numbers. Reduce terms and simplify. Explain how your simplified result and the first term in the

pair below are related algebraically to each other and to the complex number (1 + i).
1 1 - i
_____ * _____
1 + i 1 - i
Mathematics
1 answer:
LiRa [457]3 years ago
8 0

Answer:

= 1/2 - 1/2i

Step-by-step explanation:

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Help??????<br><br> i need steps
weqwewe [10]

Answer:

✌it sould be easy

Step-by-step explanation:

6 0
3 years ago
At Greenwood Landscaping, rock costs $47.50 per ton. How much would 2.5 tons cost?
Grace [21]

Answer:

Hey!

Your answer is $118.75!

Step-by-step explanation: How did I get this?

<u>STEP 1:</u> So we know that for a ton of rock costs us $47.50...

To get 2 tons all we have to do is to MULTIPLY $47.50 by 2...

<em><u>(47.50 x 2 = 95)</u></em>

<u>STEP 2: </u>So for $95, you will get 2 tons of rock!

Now to get the .5 tons of rock in price form, we have to get the price of the whole 2.5 tons and DIVIDE BY 2

<em><u>(47.50 ÷ 2 = 23.75)</u></em>

<u>STEP 3:</u> So now we have the costs for 2 tons and the price for HALF a ton.

What we do now is easy...we ADD THE VALUES TOGTHER!

<em><u>(95 + 23.75 = $118.75)</u></em>

The result of $118.75 after adding them together is the PRICE OF 2 TONS!

<u>I HOPE THIS HELPED YOU!</u>

<u />

4 0
3 years ago
Solve the system of equations by substitution. Show all work neatly on your work page. Checking your answer is wise. :) Plz need
vivado [14]

Answer: x = 1

3x + 4 = 7

subtract 4 from both sides

3x = 3

x = 3/3 = 1

7 0
3 years ago
The length of one leg of a right triangle is 3 feet more than the other leg. If the hypotenuse is 15 feet find the length of eac
melamori03 [73]

Answer:

Leg1 = 9 and leg2 = 12

Step-by-step explanation:

<u>Points to remember</u>

<u>Pythagorean theorem</u>

Hypotenuse² = Base² + Height²

<u>To find the length of each leg</u>

It is given that, hypotenuse = 15 feet

Let base = x the height = x +3

By using Pythagorean theorem we can write,

Hypotenuse² = Base² + Height²

15²  = x² + (x + 3)²

225 = x²  + x²  + 6x + 9

2x²  + 6x + 216 = 0

x²  + 3x + 108 = 0

By solving we get x = 9 and x -12

Therefore one leg = 9 and other leg = 9 + 3 = 12

5 0
3 years ago
Read 2 more answers
Find the surface area.
qwelly [4]

Answer:

912m

Step-by-step explanation:

There are two triangles.

The height of the triangles are 16m and the base is 12m.

Multiply 12(16)/2 to get the area of the triangle.

The area of the triangle is 96m.

Multiply 96 by 2 to get 192.

There are three rectangles.

Height is 20m and the base is 12m

20(12) is 240. Then, multiply by three.

240(3) is 720.

Add 192 and 720 to get 912m.

Hope this helps! Comment if I did something wrong.

5 0
3 years ago
Read 2 more answers
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