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Vinil7 [7]
3 years ago
7

Help again PLSSSSSSSSSSSSSSSSSS

Mathematics
1 answer:
Lapatulllka [165]3 years ago
7 0

Answer:

-3(x-y)

Step-by-step explanation:

The difference of x and y: x-y

Negative three times the difference of x and y: -3(x-y)

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What is the value of w?<br><br> A. 7<br> B. 3.5<br> C. 7square root of three<br> D. 14
Anarel [89]

Answer:

<h3>D. 14.</h3>

\sf{\cos(30)  =  \frac{7 \sqrt{3} }{w} } \\  \sf{ \frac{ \sqrt{3} }{2}  =  \frac{7 \sqrt{3} }{w} } \\  \sf{w =  \frac{7 \sqrt{3} \times 2 }{ \sqrt{3} }  = 14}

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3 years ago
A polygon has vertices whose coordinates are A(1, 4), B(4, -1), C(-1, -4), and D(-4, 1). Use the midpoint formula to determine w
Alenkinab [10]

Answer:

The diagonals of the polygon ABCD bisect each other

Step-by-step explanation:

The given vertices of the polygon are;

A(1, 4), B(4, -1), C(-1, -4), and D(-4, 1)

Given that the vertices of the polygon in clockwise order from the top left corner are ABCD, we have the diagonals as AC and DB

By the midpoint formula, we have;

(x_m , \ y_m) = \left (\dfrac{x_1 + x_2}{2} , \ \dfrac{y_1 + y_2}{2} \right )

Where;

(x_m , \ y_m) = The midpoint coordinates

Therefore, the midpoint of diagonal AC = \left (\dfrac{1 + (-1)}{2} , \ \dfrac{4 + (-4)}{2} \right ) = (0, 0)

The midpoint  of diagonal DB = \left (\dfrac{(-4) +4}{2} , \ \dfrac{1 + (-1)}{2} \right ) = (0, 0)

Therefore, given that the coordinates of the location of the midpoint of the diagonals AC and DB is the same, the diagonals bisect each other

Each diagonal passes through the midpoint of the other diagonal.

3 0
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Using 3.14 for pi,how do you get 355 as the volume for a cylinder?
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X = cylinder volume<br />350/717.25 = .4879749<br />so .4879749 =355/X<br />4879749*X =355<br />355/4879749 = X<br />X = 727.49643<br />727.49643 = cylinder volume Your welcome
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Desmos helps with graphing and I highly recommend using it for future problems! Hope this helps!

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What times what equals 70
vagabundo [1.1K]
7 times 10 equals 70. Hope this helps (:
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