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Nadya [2.5K]
3 years ago
12

Is 2i a real or complex root?

Mathematics
1 answer:
Maurinko [17]3 years ago
3 0

By definition, i = sqrt(-1) because it is used to solve the equation x^2+1 = 0 or x^2 = -1, which has no real number solutions.

Since i is imaginary or complex, then so is 2i

You can express it as 2i = 0+2i to be in the form a+bi with a = 0 as the real part and b = 2 as the imaginary component.

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If f(x) varies directly with x and f(x)=40 when x=8, find the value of f(x) when x=2.
melamori03 [73]

f(x)=40

x=8

so if x=2 it would be 40/8 which is 5

6 0
2 years ago
Read 2 more answers
Decide whether quadrilateral JKLM is a rectangle, a rhombus, or a square. More than one answer may apply!
NARA [144]

Answer:

Square.

Step-by-step explanation:

given J(-4,2) || K(0,3) || L(1,-1) || M(-3,-2)

given below the visual answer.

OR

you can find the distance of coordinate to coordinate:

Distance of JK

√(-4-0)² + (2-3)²

√17

Distance of KL

√(0-1)²+(3--1)²

√17

Distance of LM

√(1--3)²+(-1--2)²

√17

Distance of MJ

√(-3--4)²+(-2-2)²

√17

All sides are similar of √17 , so its a square.

4 0
2 years ago
Read 2 more answers
What is the theoretical probability of rolling all 5 dice on the same number?
Kisachek [45]
The theoretical probability of (for example) rolling 5 ones is 1/(6^5) or approximately 0.013%. Because it doesn't matter which number we get five of we can multiply it by 6 to get 1/(6^5) or approximately 0.077%.
4 0
2 years ago
Factor the GCF:
IceJOKER [234]
The greatest common factor (GCF) is the product of the greatest common factors of the numerical coefficients and the variables involving x and y. 
                           
                           -12(x^4)y - 9x³y² + 3x²y³
     
                            -3x²y(4x² + 3xy - y²)

<span>Thus, the answer is letter A. </span>

7 0
3 years ago
Ana vende productos de limpieza .Por cada $100 que venda le dan de comisión $30 .¿Cuánto ganará si vende $600?
Ulleksa [173]

Answer:

$180

Step-by-step explanation:

$600/$100 = 6

$600 es 6 veces $100.

Por vender $600 gana 6 veces mas que por vender $100.

6 * $30 = $180

Respuesta: $180

8 0
2 years ago
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