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3 years ago

Help plz help ,!!,!,!,,,!!,!,!

Mathematics

1 answer:

mixas84 [53]3 years ago

6 0

Answer:

Step-by-step explanation:

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Solve for the equation, show all your work. This is an absolute value equation. You need to show both equations and the work for

VMariaS [17]

Answer:

$x=-1$ or $7$

Step-by-step explanation:

We use casework on when $3x-9=12$ and when $3x-9=-12$ .

For the first case, $3x-9=12$ , we add 9 to both sides to get

$3x=21$ .

Dividing both sides by 3 gives

$x=7.$

For the second case, $3x-9=-12$ , we add 9 to both sides to get

$3x=-3$ .

Dividing both sides by 3 gives

$x=-1$ .

Checking both cases, we plug in $x=7$ and $x=-1$ .

For the first case, we have $|3(7)-9|=|21-9|=|12|=12$ , which satisfies the equation.

For the second case, we have $|3(-1)-9|=|-3-9|=|-12|=12$ , which also satisfies the equation.

This gives us two solutions to the equation; $x=7$ and $x=-1$ .

4 0

2 years ago

Which fraction is shown by point D?<br> A. 1/3<br> B. 1/4<br> C. 3/3<br> D. 3/4

Volgvan

Answer:

Step-by-step explanation:

Hope dis helps

7 0

3 years ago

Read 2 more answers

Why do I think I'm ugly

Tanya [424]

Answer:

Ok listen here

Step-by-step explanation:

You are like the earth.

On the inside is a bright center and lava. When lava comes to the surface as a volcano, many people think it's ugly and dangerous, but other people think that it's beautiful.

We all know that a lot of people think the surface of the earth is ugly, and they have given up hope that people can change it, but the truth is that, the world is beautiful and we can change it.

You are beautiful and the people on your earth are represented as your brain. Your brain needs to tell you to look at yourself and to say that you are beautiful. You can change your mindset to tell you that you don't care what other people say, all that matters is what you say.

Always remember that :)

7 0

2 years ago

Read 2 more answers

Hi everybody! I need help, and this question is worth TEN points!

harkovskaia [24]

Answer:

Step-by-step explanation:

we know,

The Angle Addition Postulate states that: If a point lies in the interior of an angle, then the postulate describes that putting two angles side by side with their vertices together creates a new angle whose measure equals the sum of the measures of the two original angles.

Here, W is the internal point.

The two angles are UVW and WVX.

Now, by the angle addition postulate,

UVX is equal to the sum of UVW and WVX.

Hence, the reason is-

Angle Addition Postulate

5 0

3 years ago

Question 1

wlad13 [49]

You can draw vertical line, and get 2 rectangles.
1) First one with sides 2 and 7.
2) Second one with sides 1 and (5-2) = 3, 1 and 3.

3) Area of the first one =2*7=14 units²
4)Area of the second one = 1*3=3 units²

5) Area of the whole polygon = 14+3=17 units²

Answer C. 17units².

7 0

3 years ago