Johnny reflects ∆abc across the y axis and then again across the x axis. hallie rotates ∆abc 180 degrees clockwise about the origin. sally says the resulting images will have the same coordinates. true or false?

The sally's conclusion is true and the both image have different coordinates.

Explanation:

It is given that johny reflects ∆ABC across the y axis and then again across the x axis.

Let the coordinate of A is (x,y) and it reflects along y-axis then,

After that the it reflects along x-axis then,

So, if the coordinate of A is (x,y) and Johnny reflects ∆ABC across the y axis and then again across the x axis, then A'(-x,-y).

It is given that Hallie rotates ∆ABC 180 degrees clockwise about the origin.

Let the coordinate of A is (x,y) and it rotates 180 degrees clockwise about the origin then,

So, if the coordinate of A is (x,y) and Hallie rotates ∆ABC 180 degrees clockwise about the origin, then A'(-x,-y).

It is also represent in the figure with the help of a random triangle.

In both process we get the same images. Therefore, the sally's conclusion is true.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.