Answer:
14x-4
Step-by-step explanation:
length:2x+3
width:5x-5
perimeter of rectangle:2(l+b)
:2(2x+3+5x-5)
:2(7x-2)
:14x-4
•••The perimeter of rectangle(p)=14x-4
See the explanation
<h2>
Explanation:</h2>
Here we have the following points:
<h3>3) </h3>
Here we need to reflect each point over the x-axis and write the coordinates of the new points. So:
<h3>4)</h3>
The x coordinate of each point remains the same while the y coordinate of each point is multiplied by -1. In other words, when reflecting any point over the x-axis we follow this rule:
<h3>5)</h3>
The difference is that the pre-image and the reflected point will have the same x-coordinates but different y-coordinates. So the x-axis will work as a mirror.
<h2>Learn more:</h2>
Other transformations: brainly.com/question/12534603
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X * .64 = 1200
x * .64/.64 = 1200/.64
x = 1875
1875 students applied last year
Since we have the endpoints of a diameter the center is very easy to find. It is the midpoint of the diameter endpoints, which is just the average coordinates...
The center is:
((-7+3)/2, (-10+2)/2)
(-2,-4)
To find the radius we can use the endpoints again to find the diameter squared and then get the radius from that:
d^2=(dy)^2+(dx)^2
d^2=(2--10)^2+(3--7)^2
d^2=12^2+10^2
d^2=144+100
d^2=244
d=√244, since d=2r, r=d/2
r=√(244/4)
r=√61
The equation of a circle is (x-h)^2+(y-k)^2=r^2. We found earlier that the center was at (-2,-4) and we just saw that r^2=61 so:
(x+2)^2+(y+4)^2=61