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3 years ago

What is an imaginary number?

1 answer:

8 0

An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by it's property i² = −1. The square of an imaginary number bi is −b². For example, 5i is an imaginary number, and it's square is −25.

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State whether the equation is true, false or open? 4y+8=6y+3

g100num [7]

Answer:

Open

Explanation:

An open equation is an equation that has variables and CAN be solved

Example: 2x = 4 ......> can be solved giving ......> x = 2

A false equation is one where both sides can NEVER be equal

Example: 15 = 2(3) + 1 ..........> 15 can never be equal to 7

A true equation is one having no variables and both sides are ALWAYS equal

Example: 2(3) + 1 = 2(2) + 3 ........> 7 will always be equal to 7

Now, the given equation is:

4y + 8 = 6y + 3

Let's try to solve is:

4y + 8 = 6y + 3

6y - 4y = 8 - 3

2y = 5

y = 2.5

Therefore, the given equation contains a variable and can be solved which means that it is an open equation

Hope this helps :)

8 0

3 years ago

Read 2 more answers

What is the value of the x variable in the solution to the following system of equations?

harkovskaia [24]

Its A. x=4

procedure: 3*equation1 - 2*equation2 ⇒ x=4

8 0

3 years ago

What does n/5 - 3n/10 =1/5

dsp73

I assume you're looking for n.
so, take 2n/10-3n/10=2/10. Making everything have the same denominator is always easier.

This way, you have -n/10=2/10.

n=-2.

8 0

3 years ago

Write a rule that represents the function (0,0)(1,0.5)(2,2)(3,4.5)(4,8)

kirza4 [7]

The rule that represents those numbers is .....idk

6 0

3 years ago

8^(3x-1)=2^8 Solve for x

Yuri [45]

$8^{(3x-1)}=2^8 \\\\ 2^{3(3x-1)}=2^8 \\\\ 3(3x-1)=8 \\\\ 9x-3=8 \\\\ 9x=8+3 \\\\ 9x=11 \\\\ \boxed{x=\frac{11}{9}}$

4 0

3 years ago

Read 2 more answers