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3 years ago

What is the best method to geometrically show the addition of complex numbers?

Mathematics

1 answer:

Jlenok [28]3 years ago

8 0

Answer:

Multiplying a complex number by a real number

Explanation:

For example, 2 times 3 + i is just 6 + 2i. Geometrically, when you double a complex number, just double the distance from the origin, 0. Similarly, when you multiply a complex number z by 1/2, the result will be half way between 0 and z.

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Three times a larger number is 30 more than 5 times a smaller number. The sum of the larger number and 5 times the smaller numbe

kicyunya [14]

Answer: Smaller number = 6

Larger number = 20

Step-by-step explanation:

Let the smaller number be x.

Let the larger number be y.

Three times a larger number is 30 more than 5 times a smaller number. This will be:

3 × y = (5 × x) + 30

3y = 5x + 30 ...... i

The sum of the larger number and 5 times the smaller number is 50. This will be:

y + 5x = 50 ...... ii

From equation ii

y + 5x = 50.

y = 50 - 5x ...... iii

Put the value of y = 50 - 5x into equation i

3y = 5x + 30

3(50 - 5x) = 5x + 30

150 - 15x = 5x + 30

150 - 30 = 5x + 15x

120 = 20x

x = 120/20

x = 6

The smaller number is 6

Note that y + 5x = 50

y + 5(6) = 50

y + 30 = 50

y = 50 - 30

y = 20

The bigger number is 20

7 0

3 years ago

Which statement is true? a. every rational number is an integer

Andrews [41]

Answer:

An integer is a whole, and it completes itself

Step-by-step explanation:

Even Negatives can be Integers, and Zero is the only number that is neither positive nor negative. Rational can be represented by integers, so Answer A. is true

4 0

3 years ago

HOW MANY TENTHS IN 100!!!!!!! PLEASE

valina [46]

10.,.............................

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3 years ago

Read 2 more answers

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

mariarad [96]

Answer:

Step-by-step explanation: