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Andrew [12]
2 years ago
12

What is the sum of the complex numbers 2 + 4i,and 3 − 7i, where i=-1

Mathematics
2 answers:
Elodia [21]2 years ago
5 0

Answer:

5 - 3i.

Step-by-step explanation:

2 + 4i + 3 - 7i       Bring like terms together:

= 2 + 3 + 4i - 71

= 5 - 3i.

Ket [755]2 years ago
4 0

Answer:

5 - 3i

Step-by-step explanation:

Real numbers are a subset of the complex numbers. Therefore it would only make sense that the complex numbers follow the same rule of additivity and multiplication as real numbers do:

(2+4i)+(3-7i)=2+3+4i-7i=5-3i

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Which statement about the graphs of functions g(x)<br> (x - 1)2 and f(x) = x2 is true?
katrin2010 [14]

Answer:What is the axis of symmetry and vertex for the function f(x) = 3(x - 2)2 + 4? ... Which best describes the transformation from the graph of f(x) = x2 to the graph of ... The graph of the function is 1 unit up and 2 units to the left from the graph of y = x2. ... Which statement about the function is true?

Step-by-step explanation:

4 0
3 years ago
there are 9 students that play tennis. if 75% of the students do not play tennis, how many are in the class
Paha777 [63]
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100 : 25 = 4
4 * 9 =
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7 0
3 years ago
R^4/9 translated verbal expression
Verizon [17]

Answer:

The quotient of 4 and 9 raised to the power of r.

Step-by-step explanation:

3 0
3 years ago
Which expression is equivalent to
givi [52]

Answer:

\boxed{D. 9x + 36}

Step-by-step explanation:

<em>Hey there!</em>

<u><em>Given info</em></u>

9(x + 4)

<u><em>Solve!</em></u>

9*x = <u>9x</u>

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<u><em>Answer</em></u>

<u>9x + 36</u>

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<em>Hope this helps :)</em>

6 0
3 years ago
Read 2 more answers
Tan weighs 146 pounds. Minh weighs 15 pounds more than Tan. How much does Minh weigh?
dimaraw [331]

Given parameters:

Weight of Tan  = 146pounds

Unknown:

Weight of Minh = ?

Following this problem step wisely, we can derive a solvable algebraic equation;

  Let the weight of Minh  = M

In the second sentence, we see that Minh weighs 15pounds more than Tan;

    So;

              M  = 15 + Weight of Tan

Since we already know the weight of Tan,

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We clearly see that Minh's weight will be 161 pounds.

3 0
3 years ago
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