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cluponka [151]
3 years ago
9

What is the solution of the equation when solved over complex numbers? x^2+27=0

Mathematics
1 answer:
Papessa [141]3 years ago
7 0

{x}^{2}  + 27 = 0 \\  {x}^{2}  =  - 27 \\ x =   +  - \sqrt{ - 27}  \\ x =  +  -  \sqrt{27 \times ( - 1) }
x =  +  - 3 \sqrt{3}  \times  \sqrt{ - 1}
x  =  +  - 3 \sqrt{3} i
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For working 13 hours you earn $58.50 and $121.50 for 27 hours. What is your rate of pay in dollars per hour?
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121.5-58.5/27-13
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Convert 2000 Swiss francs to Dutch guilders
Shtirlitz [24]

Answer:

2000 swiss francs equals 3920 Dutch Guilders!

Step-by-step explanation:

One Swiss Franc equals 1.96 Dutch Guilders. Having said this, we can come up with the following equation:

D = 1.96S

Where 'S' represents the swiss francs and 'D' the Dutch Guilders. Now, to convert 2000 Swiss francs, we just need to plug the value into the equation:

D = 1.96(2000) = 3920

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3 years ago
Find the length of side x I simplest radical form​
alekssr [168]

Answer:

Option A

Step-by-step explanation:

By applying Pythagoras theorem in ΔABC,

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AC = \sqrt{61}

Similarly, by applying Pythagoras theorem in ΔACD,

AD² = AC² + CD²

(10)² = (\sqrt{61})^2 + x²

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Option A will be the answer.

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2 years ago
A group of friends equally split the dinner bill shown. If each person paid $16, how many friends paid?
Akimi4 [234]

Answer:

16/y = x

Step-by-step explanation:

You cannot solve for the question yet. However, you can create an equation!

we know that each person paid 16 dollars.

We don’t know how much the bill was or how many people were there.

So out equation looks like;

z/y = x

or

z * x = y

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y = how much each person paid.

x = how many people paid.

Substitute with what we know.

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How are rational functions similar to linear, quadratic, or exponential functions? How are they different? When are these simila
jeyben [28]

Answer:

See explanation below for further details.

Step-by-step explanation:

A rational consist of two real numbers such that:

\frac{a}{b} =c

If c is a polynomial with a certain grade, then, both the numerator and the denominator must be also polynomials and the grade of the numerator must be greater than denominator.

If c is linear function, that is, a first order polynomial, then a must be a (n+1)-th polynomial and b must be a n-th polynomial.

Example:

If a = x^{2} and b = x, then:

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If a = 3\cdot x^{3} and b = x, then:

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But if c is an exponential, both the numerator and the denominator must be therefore exponential function and grade of each exponential function must different to the other.

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It is worth to add that exponential functions can be a linear combination of single exponential function, similar to polynomials.

Example

5\cdot a^2\cdot x -9

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