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I see that you already got a specific answer. More in general, you can calculate the absolute value of a complex number using the Pythagorean theorem. You can also use the "rectangular to polar" conversion, available on just about any scientific calculator - which will give you both the absolute value, and the angle. However, using this function is a bit confusing, and you'll probably have to check the calculator manual.

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9y ago
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9y ago

The absolute value of a complex number z = x + iy is sqrt(x^2 + y^2).In this case, x = 7 and y = 9 so that |z| = sqrt(7^2 + 9^2) = sqrt(49 + 81) =sqrt(130) = 11.4018, approx.

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9y ago

|7 + 9i| = √(7² + 9²) = √130 ≈ 11.402

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Q: What is the absolute value of 7 plus 9i?
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What is the sum of (7 plus 3i) plus (8 plus 9i)?

(7 + 3i) + (8 + 9i) = (7 + 8) + (3i + 9i) = (7 + 8) + (3 + 9)i = 15 + 12i Which can also be written as: 15 + 12i = 3(5 + 4i).


What is the absolute value of negative 2 plus negative 5?

Absolute value of -2+(-5) is 7.


Is -7 equal to plus 7 in integers?

no if its absolute value of -7 and +7 then its equal


Absolute value of x plus 7?

The absolute value of any number is the "distance from zero". If the expression is negative, it is converted to positive. The absolute value of x+7 can be either x+7 (if x+7 is positive) or -(x+7) (if x+7 is negative).


Compare the absolute value of -7 with the absolute value of 7?

The absolute value of -7= 7 The absolute value of 7= 7 Therefore, the absolute values of both 7 and -7 are the same, because absolute value is the distance a number is from zero, regardless of sign.


Is the absolute value of the opposite of 7 the same as the opposite of the absolute value 7?

No. The absolute value of the opposite of 7 is 7, but the opposite of the absolute value of seven is -7.


Is the absolute value of negative 7 less than the absolute value of 7?

the absolute value of negative 7 is 7 and the absolute value of 7 is also seven so they are equal. Therefore, the absolute value of negative 7 is not less than the absolute value of 7. Remember that absolute value means the positive of a number


The absolute value of 7?

the absolute value of 7 is 7


What is the absolute value for -7?

What is the absolute value of you. Oh wait I know.$ -9000000000


How does the absolute value of -7 compare to the absolute value of 7?

They are the same. the absolute value is always positive


Is it impossible for a number to have the absolute value of -7?

No. The absolute value of -7 is 7.


Where would the absolute value of -7 be on the number line?

The absolute value of -7 is 7