Solve the quadratic equation by completing the square. What are the missing pieces to the steps?
-27 = 4x²- 24x
-27 = 4(x²- 6x + 9)
9 =4(x²- 6x + 9)
9/4 = (x -3)
+__= x - 3
__ = x​

Answers

Answer 1

Answer:

The missing pieces should be after line 3.

9/4 = (x - 3)^2

<=> (3/2)^2 = (x - 3)^2

<=> x - 3 = 3/2 or x - 3 = -3/2

<=> x = 3 + 3/2 or x = 3 - 3/2

<=> x = 9/2 or x = 3/2

Hope this helps!

:)

Answer 2

Answer:

I think the missing steps are:

[tex]\frac{3}{2}=x-3[/tex]

and

[tex]\frac{9}{2}=x[/tex]

Step-by-step explanation:

[tex]-27=4x^2-24x[/tex]

First, factor 4 to make isolate [tex]x^2[/tex]

[tex]-27=4(x^2-6x)[/tex]

Now, divide by 4.

[tex]-\frac{27}{4}=x^2-6x[/tex]

Complete the square by adding [tex](\frac{b}{2})^2[/tex]

[tex](\frac{b}{2})^2-\frac{27}{4}=x^2-6x+ (\frac{b}{2})^2[/tex]

[tex](\frac{6}{2})^2-\frac{27}{4}=x^2-6x+ (\frac{6}{2})^2[/tex]

[tex](3)^2-\frac{27}{4}=x^2-6x+ (3)^2[/tex]

[tex]9-\frac{27}{4}=x^2-6x+9[/tex]

Solve the difference.

[tex]\frac{9*4-27}{4}=x^2-6x+9[/tex]

[tex]\frac{36-27}{4}=x^2-6x+9 \\\frac{9}{4}=x^2-6x+9[/tex]

Factor the equation.

[tex]\frac{9}{4}=(x-3)(x-3)[/tex]

Rewrite it;

[tex]\frac{9}{4}=(x-3)^2[/tex]

Extract the square root.

[tex]\sqrt{\frac{9}{4} }=x-3[/tex]

Take the square root of 9 and 4.

[tex]\frac{3}{2}=x-3[/tex]

Add 3.

[tex]\frac{3}{2}+3=x[/tex]

Do the sum

[tex]\frac{3+2*3}{2}=x\\\frac{3+6}{2}=x\\\frac{9}{2}=x[/tex]


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Answer:

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Step-by-step explanation:

Answer:

Step-by-step explanation:

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Answers

Answer:

x = 1; y = 6

Step-by-step explanation:

x + 2y = 13

-x + y = 5

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The graph of f(x) = x^2 was transformed to create the graph of g(x) = f(x) - 9. Which statement about the graphs is true?
A.The graph of g is a reflection of the graph of f across the x-axis.
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Answers

Answer:

C. The y-intercept of the graph of g is 9 units below the y-intercept of the graph of f.

Step-by-step explanation:

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---

Hope this helps! :) If so, please mark my answer as brainliest

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Answer:

Value: 10

Step-by-step explanation:

1. Let us first write down the expression, changing it a bit to our convenience: 2(x - 3) + 2x - 4

2. Substitute this value of x into the expression as such:

2(5 - 3) + 2(5) - 4

3. Now we can approach this first part of the problem in two ways:

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Option 2. subtract 3 from 5, then multiply 2 by that value

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5. Now apply algebra and solve this expression:

2(2) + 2(5) - 4 = 4 + 10 - 4 = 14 - 4 = 10

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Answers

Answer:

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Step-by-step explanation:

Answer:

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Answers

Answer:

52.8%

Step-by-step explanation:

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Percentage form of number 0.528 is,

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We have to given that;

To convert 0.528 into a percent.

Since, A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

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⇒ 0.528 x 100%

⇒ 52.8%

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Explanation:

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?????????????????????????????????????????????????????????????

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Answer:

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u=11

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Answers

Answer:

x2+10x+24

Step-by-step explanation:

The expanded expression in standard form is: [tex]x^2 - 10x + 24[/tex]

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(x - 4)(x - 6)

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Step 2: Multiply -4 from the first parentheses by both terms in the second parentheses:

-4 * x = -4x

-4 * -6 = 24

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

1/4

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b

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Answer:

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Step-by-step explanation:

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Answer:

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C.

Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

Please find attached photograph for your answer.

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Answers

Step-by-step explanation:

The question is not properly formatted, here is a better format

the expression

[tex]7x+17x-6= (4x+6)[/tex]

[tex]x=42[/tex]

To verify weather the above is correct we need to solve it our-self

[tex]7x+17x-6= (4x+6)[/tex]

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[tex]7x+17x-6= 4x+6[/tex]

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Divide both side by 20 we have

[tex]x= \frac{12}{20} = \frac{6}{5} \\[/tex]

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Answers

Answer:

696.8 mm^2

Step-by-step explanation:

Does this make sense?

The surface area of figure  is  696.8[tex]mm^{2}[/tex].

To understand more, check below explanation.

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The given figure is combination of a triangular shape and cuboid.

We have to find surface area of given figure.

The surface area of combined figure is summation of area of four triangle and area of cuboid excluding top of cuboid.

The base of triangle = 13mm

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Surface area of cuboid excluding top is computed as,

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Pythagorean Theorem

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Answer:

4320.43

Step-by-step explanation:

You need to figure out the Pythagorean Theorem and then use that answer to find the area. You will then get 4320.43.

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Answer:

4320.43

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x = 2

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Please see the step by step solution in the picture attached below.

Hope it can help you. Have a nice day!

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