Find the coordinates of A (-2,3) after a rotation of 90 degrees

Mathematics

1 answer:

irakobra [83]4 years ago

3 0

(-3,-2) are the new coordinates

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5(1-2x)+8x=15 what the equations

Helen [10]

Answer:

x = -5

Step-by-step explanation:

You're asking for the solution? the x value that makes the equation true?

First perform the multiplication: 5 - 10x + 8x = 15

Combining like terms, we get -10 = 2x.

Dividing both sides by 2 yields x = -5.

8 0

3 years ago

Katherine is required to wear uniforms to school. Katherine has a green shirt, a white shirt, a gray shirt, and a blue shirt. Sh

kenny6666 [7]

First one is 9 second one is 8 add the shirts together and the shorts and it gets 9 then one gets wet take away one that 8 outcomes so first is 9 second is 8

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3 years ago

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What's the answer and how to get it

Murrr4er [49]

The answer is B.)
The answers are using the distributive property. The distributive property multiplies both the numbers inside the parenthesis by the number that's on the outside of the parenthesis.
6x3 = 18, 6x4x=24x.
Hope this helps :) work hard!

8 0

3 years ago

What is the value of y?

inn [45]

Answer:

y = 70

Step-by-step explanation:

Angle Formed by Two Chords= 1/2(SUM of Intercepted Arcs)

y = 1/2(92+48)

y = 1/2(140)

y = 70

6 0

3 years ago

What is the perimeter of a polygon with vertices at (−2, 1) , (−2, 4) , (2, 7) , (6, 4) , and (6, 1)

Marina CMI [18]

Check the picture below.

now, the sides at the bottom, the straight sides, are plain to see how long each is, you can pretty much count the units off the grid.

so, the only ones you need the distance formula or pythagorean theorem is the slanted ones, there are two, and both are equal, so, just get the length of one, and double it up.

$\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 2}}\quad ,&{{ 7}})\quad 
% (c,d)
&({{ 6}}\quad ,&{{ 4}})
\end{array}\qquad 
% distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
d=\sqrt{(6-2)^2+(4-7)^2}\implies d=\sqrt{4^2+(-3)^2}\implies d=\sqrt{16+9}
\\\\\\
d=\sqrt{25}\implies d=5$

double that up, and both slanted sides are 10, the perimeter is all sides summed up.

5 0

3 years ago