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Aleksandr-060686 [28]

3 years ago

13

What value of x makes this equation true?

1 answer:

Flauer [41]3 years ago

7 0

Answer:

27

Step-by-step explanation:

27/3-3=6 and 27/9+3=6

so both sides are equal to each other which makes the equation true.

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Solve x2 − 12x + 5 = 0 using the completing-the-square method. x = six plus or minus the square root of five x = negative six pl

Andru [333]

we are given

$x^2-12x+5=0$

we have to solve it by completing square method

step-1: Move 5 on right side

$x^2-12x+5-5=0-5$

$x^2-12x=-5$

step-2: Break middle term

$x^2-2*6*x=-5$

step-3: Add 6^2 both sides

$x^2-2*6*x+(6)^2=-5+(6)^2$

$(x-6)^2=31$

step-3: Solve for x

$\sqrt{(x-6)^2} =\sqrt{31}$

we wil get two values

First value is

$x-6=\sqrt{31}$

add both sides 6

$x-6+6=6+\sqrt{31}$

$x=6+\sqrt{31}$

Second value is

$x-6=-\sqrt{31}$

add both sides 6

$x-6+6=6-\sqrt{31}$

$x=6-\sqrt{31}$

so, solutions are

$x=6+\sqrt{31}$

$x=6-\sqrt{31}$ .............Answer

5 0

3 years ago

please help! I need to solve kt algebraically and if you can show your work/explain how you got the answer that would help a ton

Tasya [4]

Step-by-step

=> 900=-100x+300

=> -100x+300=900

=> -100x=900–300

=> -100x=600 divide both side by -100

=> x=-6

3 0

2 years ago

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Learn with<br> Add.<br> (2h + 8) + (9h + 4)<br> Submit

ahrayia [7]

Answer:

11h+12

Step-by-step explanation:

8 0

2 years ago

Tony will run at most 31 miles this week. So far, he has run 20 miles. What are the possible numbers of additional miles he will

Misha Larkins [42]

Answer:

t=11

Step-by-step explanation:

31-20=11

so 11 miles left

5 0

3 years ago

Hi, can I please have help with this question and how to do it?

Sati [7]

Do L times W times H or length width and height hope this helps

8 0

3 years ago

Read 2 more answers