Write (7 + 3i) + (6 − i) as a complex number in standard form.

Mathematics

2 answers:

Minchanka [31]2 years ago

7 0

I believe its 13 + 6i. Im not exactly 100% sure

Tamiku [17]2 years ago

6 0

45 + 11i

To do problems like these, treat them as you would multiplying two binomials. Just FOIL them, and keep in mind that (i)^2 is equal to -1.

You might be interested in

-1/5 plus 7/10 <br><br> Whats the answer ??/

lubasha [3.4K]

Answer:

Hi Friend!

The Correct Answer is 1/2

Step-by-step explanation:

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(-1/5, 7/10) = 10

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

3 0

2 years ago

Gina takes classes at both Westside Community College and Pinewood Community College. At Westside, class fees are $98 per credit

Kipish [7]

Answer: second option.

Step-by-step explanation:

Let be "w" the credit hours at Westside Gina is taking.

You know that class fees are $98 per credit hour at Westside, then the expression for the dollar amount she paid for her class fees at Westside is:

$98w$

Since she is taking a combined total of 13 credit hours at the two schools, the credit hours at Pinewood Gina is taking can be represented by this expression:

$13-w$