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guapka [62]
3 years ago
6

Write an equation in simplest form that can be used to find the value of x. (Don’t find the value of x)

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer:

3x=20

Step-by-step explanation:

Perimeter is just all the sides of a shape added. So, x+x+x=20 or, more simply put, 3x=20.

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In the equation left parenthesis x squared plus 14 x right parenthesis plus left parenthesis y squared minus 18 y right parenthe
Phoenix [80]

Answer:

Complete the square on x by adding​ <u>49</u> to both sides.

Complete the square on y by adding​ <u>81</u> to both sides.

Step-by-step explanation:

We have been given an equation (x^2+14x)+(y^2+18y)=5. We are asked to complete the squares for both x and y.

We know to complete a square, we add the half the square of coefficient of x or y term.

Upon looking at our given equation, we can see that coefficient of x is 14 and coefficient of y is 18.

(\frac{14}{2})^2=7^2=49

(\frac{18}{2})^2=9^2=81

Now, we will add 49 to complete the x term square and 81 to complete y term square on both sides of our given equation as:

(x^2+14x+49)+(y^2+18y+81)=5+49+81

Applying the perfect square formula a^2+2ab+b^2=(a+b)^2, we will get:

(x+7)^2+(y+9)^2=135

Therefore, We can complete the square on x by adding​ <u>49</u> to both sides and the square on y by adding​ <u>81</u> to both sides.

7 0
3 years ago
Please help i’ll give brainliest
Furkat [3]

Answer:

The answer is A, a total of 12 students spend 31 or more hours online per month.

Step-by-step explanation:

From the hours of 31 to 65 there are twelve students.

7 0
3 years ago
Another one lol(picture)
Andreyy89
Look up the law of sines, I suggest Khan Academy. It is better if you know how to do it, it is very useful.
7 0
3 years ago
Someone help pls pls
OLEGan [10]

Answer:

3.636 hour. dividing 200miles /55m/h =3.636h

3 0
2 years ago
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WARRIOR [948]
10 is the correct answer
4 0
3 years ago
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