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4 years ago

The vertices of a quadrilateral in the coordinate plans are known. How can the perimeter of the figure be found?

Mathematics

1 answer:

Serggg [28]4 years ago

3 0

Answer:

The perimeter can be found by calculating lengths of sides using distance formula and then adding up the lengths

Step-by-step explanation:

If the vertices of a quadrilateral are known in the coordinate plane, the vertices can be used to determine the lengths of sides of quadrilateral. The distance formula is used for calculating the distance between two vertices which is the length of the side

$d=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}}$

after calculating all the lengths of four sides using their vertices, they can be summed up to find the perimeter ..

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consider the equation is Y equals 1/square root of x and y=x-2. approximate solution of the system equations

emmasim [6.3K]

Answer:

$x=1$ and $x=4$

Step-by-step explanation:

We have the following system of equations:

$y=\sqrt{x}$ and $y=x-2$

To solve the problem, we need to equal the two equations:

$x-2=\sqrt{x}$ ⇒ $(x-2)^{2} =x$ ⇒ $x^{2} -4x + 4 = x$

⇒ $x^{2} -5x + 4 = 0$

So you need to find two numbers that added equal to 5 and multiplied equal to 4. These two numbers are $x=-1$ and $x=-4$ .

Then, the factorized form of the polynomial is: $(x-1)(x-4)$ .

The, the solution to the system of equations is: $x=1$ and $x=4$ .

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3 years ago

Please help!!!! **URGENT**

kow [346]

Answer:

3 0 -7 4

Step-by-step explanation:

you figure this out by looking at where you know the x or y value is and you find the line at that coordinate and then you look at where the other value is (x or y)

8 0

3 years ago

Find the measures of the numbered angles.

Arte-miy333 [17]

1 = 90
2 = 65
3 = 65
4 = 25

90+25=115
180-115=65

have a merry christmas :)

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3 years ago

Which is NOT an advantage of using a credit card?

Lunna [17]

Answer:

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