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mr Goodwill [35]

3 years ago

8

I need help with my homework pls somone help….

2 answers:

Vikki [24]3 years ago

5 0

Answer:

x > 9

Step-by-step explanation:

since the dot is open there won't be a line under

kvv77 [185]3 years ago

5 0

Answer:

X > 9

Step-by-step explanation:

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How do you find the constant rate of change for a linear function

mina [271]

The rate of change is the slope so it would be
rise/run

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4 years ago

I need help pls and ty

iragen [17]

Answer: 3rd option

Step-by-step explanation: square root of 13 is 3.60 so it lines up perfectly on the number line

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3 years ago

What is the slope of a line that passes through 4,-3 and -8,4

trapecia [35]

Answer:

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Step-by-step explanation:

Hope this helps : )

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4 years ago

Read 2 more answers

Let <img src="https://tex.z-dn.net/?f=%5Calpha" id="TexFormula1" title="\alpha" alt="\alpha" align="absmiddle" class="latex-form

Margarita [4]

Answer:

$|\alpha| = 2$

Step-by-step explanation:

Since $\alpha$ and $\beta$ are complex conjugates, let's define them as follows:

$\alpha = a+bi$

$\beta = a-bi$

$\frac{\alpha}{\beta^2}=\frac{a+bi}{a^2-b^2-2abi} =\frac{(a+bi)*(a^2-b^2+2abi)}{(a^2-b^2-2abi)*(a^2-b^2+2abi)} =\frac{a^3-3ab^2+(3a^2b-b^3)i}{a^4+2a^2b^2+b^4}$

Since $\frac{\alpha}{\beta^2}$ is a real number, complex part of above result must be zero.

$3a^2b-b^3=0$

From to hold above equality, $b=0$ or $b^2=3a^2$ .

However, since $|\alpha-\beta|=2\sqrt 3$ , $b\neq 0$

So, $b =\sqrt 3 a$ or $b =-\sqrt 3 a$

And since $\alpha$ and $\beta$ are complex conjugates, taking plus or minus sign as found above will not affect the result, so let's write the last version of $\alpha$ and $\beta$ as follows:

$\alpha = a+\sqrt 3 ai$

$\beta = a-\sqrt 3 ai$

Since $|\alpha-\beta|=2\sqrt 3$

$|a+\sqrt 3 ai-a+\sqrt 3 ai|=2\sqrt 3$ ⇒ $a = 1$

Finally, $\alpha = 1+\sqrt 3 i$ ⇒ $|\alpha| = \sqrt{(1^2+\sqrt 3^2)}=2$

3 0

3 years ago

Omar bought one dozen eggs for 2.69. which is the amount Omar paid for each egg

4vir4ik [10]

Answer:

about 23 cents per egg

Step-by-step explanation:

5 0

3 years ago