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3 years ago

Solve for x, show all your work: -5x = 45 Question 7 options:

Mathematics

2 answers:

barxatty [35]3 years ago

5 0

Hello,

Shall we begin?

-5x = 45 *(-1)
5x = - 45
x = - 45/5
x = -9

<span>Answers: x = -9</span>

kakasveta [241]3 years ago

3 0

Answer:

Step-by-step explanation:

This is a very easy algebra question, but let's break it down step-by-step.

<h3>Step 1: Divide by -5 & First Answer</h3>

x = -9, this seems correct

<h3>Step 2: Check the Answer</h3>

In algebra, you can always check your answer by inserting the number you got in for x in the original equation.

-5(-9) = 45

Two negatives multiplied make a positive.

45 = 45 <em>Correct</em>

<h3>Step 3: Final Answer</h3>

Final answer is -9

<em>PLEASE MARK BRAINLIEST</em>

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Find the distance between the complex numbers. z1 = 9 - 9i z2 = 10 - 9i

steposvetlana [31]

Answer:

The distance between the two given complex numbers = 9

Step-by-step explanation:

<u><em>Explanation</em></u>:-

<u><em>Step(i):</em></u>-

Given Z₁ = 9 - 9 i and Z₂ = 10 -9 i

Let A and B represent complex numbers Z₁ and Z₂ respectively on the argand plane

⇒ A = Z₁ = x₁ +i y₁ = 9 - 9 i and

B = Z₂ = x₂+ i y₂ = 10 -9 i

Let (x₁ , y₁) = ( 9, -9)

(x₂, y₂) = (10, -9)

<u>Step(ii)</u>:-

<em>The distance between the two points are </em>

A B = $\sqrt{(x_{2} - x_{1})^{2}+(y_{2} - y_{1})^{2} }$

A B = $\sqrt{(10 - 1)^{2}+(-9 - (-9))^{2} }$

AB = $\sqrt{(9)^{2} +(-9+9)^{2} }$

<u><em>Conclusion:-</em></u>

The distance between the two given complex numbers = 9

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