Answer:
Esta pregunta no es de la lección.
Step-by-step explanation:
Answer:
The area of the circle is 
Step-by-step explanation:
we know that
A circle has a sector with area 
and central angle of 60 degrees
The area of a complete circle subtends a central angle of 
so
using proportion
Find the area of the circle
Answer:
H was (Hx,Hy) goes to (Hy,-Hx)
G was (Gx,Gy) goes to (Gy,-Gx)
I was (Ix,Iy) goes to (Iy,-Ix)
Step-by-step explanation:
Rotating about the (0,0), the distance from any point to the origin (the hypotenuse of the triangle formed) never changes. A 90 clockwise rotation moves the point to the next quadrant, so side a and side b must flip to maintain the distance. You just need to flip the coordinates and change the sign of the new Y. If you plot a few random points and use a compass to rotate them 90 I think you will find this works.
<span>2x^2 − 2z^4 + y^2 − x^2 + z^4
</span>2(-4)^2 − 2(2)^4 + (3)^2 − (-4)^2 + (2)^4
2(16) - 2(16) + 9 - 16 + 16
32 - 32 + 9 - 16 + 16
answer is 9
