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Elis [28]
3 years ago
8

Add the following complex numbers:

Mathematics
2 answers:
V125BC [204]3 years ago
6 0

Answer:

B. 7 - 9i

Step-by-step explanation:

1) Remove Parentheses.

2 - 8i + 5 - i

2) Add 2 and 5.

7 - 8i - i

3) Subtract i from -8i.

7 - 9i

Maurinko [17]3 years ago
3 0

Answer:

Option B

The answer is 7 – 9i

Step-by-step explanation:

(2 – 8i) + (5 – i)

2 – 8i + 5 – i

7 – 9i

Thus, The answer is 7 – 9i

<u>-TheUnknownScientist 72</u>

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What is the coefficient of the term of degree 4 in this polynomial?<br> x^8+2x^4 - 4x^3 + x^2-1
never [62]

Answer:

2

Step-by-step explanation:

the coefficient is the number that multiply the letter

5 0
3 years ago
Which expression can be used to solve 3/5 ÷ 7/10​
marusya05 [52]

Answer:

Step-by-step explanation:

3/5 divided by 7/10

You use KCF

KCF stands for keep change flip

So it would be 3/5x10/7

3              10                    15

_      x       _        =            _

5               7                       7

you need to simplify it so the 5 in 3/5 would be a 1 and the 10 in 10/7 would be  5

5 0
3 years ago
Need some help with this one.
Damm [24]

Answer:

C. 3 cans

Step-by-step explanation:

9 1/9 times 3 is 27.33 and if one can cover 10 square meters then that means you'll need 3 cans.

5 0
3 years ago
Convert the following:<br> 110110two to base ten<br> 25ten to base two<br>​
blagie [28]

Answer:

  • 110110 in base 2 when converted in base 10 will be equal to 54
  • 25 in base 10 is equal to 1001 base 2

Step-by-step explanation:

Part 1: 110110two to base ten

For conversion from base 2 to base 10 we multiply each digits of given number with powers of 2

So

=1*2^5 + 1 * 2^4 + 0 * 2^3 + 1 *2^2 + 1* 2^1 + 0*2^0\\ =1*32+ 1* 16 + 0 + 1*4 + 1*2 +0\\ =32 + 16 +4 + 2\\ = 54

So 110110two when converted in base 10 will be equal to 54

Part 2: 25ten to base two

For conversion from base 10 to base 2 we will divide the given number with 2 repeatedly and store the remainders until the quotient comes 1. The solution is as follows:

25/2 = 12     remainder 1

12/2 = 6       remainder 0

6/2 = 3        remainder 0

3/2 = 1         remainder 1

Now the remainders will be written in inverse order as:

=1001 base 2

So 25 in base 10 is equal to 1001 base 2

I hope it will help you!

7 0
4 years ago
What is the length of a squares diagonal when the sides are 1 km
PIT_PIT [208]

Answer:

As per given Information

Side of square = 1 Km

we have to find the length of diagonal of square .

For finding the length of diagonal of square we will use formale

  • Length of Diagonal = Side√2

Putting the value we get

↠ Length of Diagonal = 1√2 Km

So, the length of diagonal of square is 1√2 Km

7 0
3 years ago
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