Answer:
The answer is
<h2>20 + 56i</h2>
Step-by-step explanation:
(2 -10i) (-5 + 3i)
Using FOIL multiply each term in the first bracket by the terms in the second <u>bracket</u>
That's
2(-5) + 2(3i) - 10i(-5) - 10i(3i)
<u>Multiply the numbers and simplify</u>
We have
- 10 + 6i + 50i - 30i²
From the rules of imaginary numbers
<h3>i² = - 1</h3>
So we have
- 10 + 56i - 30(- 1)
- 10 + 56i + 30
Simplify
30 - 10 + 56i
We have the final answer as
<h3>20 + 56i</h3>
Hope this helps you
Answer:
A
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
=> 1/4 * 
=> 1/4 * 3.14 * 4
=> 3.14
Answer = 3.14
<h2>
Please mark my answer as the brainliest for further answers :)</h2>
Answer:
D
Step-by-step explanation:
Multiply the circumference by the diameter which is D
Step-by-step explanation:
Its additive inverse!
