9 comes in the period of million and 13 in thousands period
Understanding π You can find<span> the </span>radius<span> of a circle from either its area or its circumference -- the distance around the edge of the circle. To do either of these calculations, you will need to use the number π. π, or pi, is equal to the circumference of a circle divided by its diameter.
hope this helps</span>
0.49 as a decimal i hope it’s right! Good luck
Answer:
option 2
2x²- x - 1
Step-by-step explanation:
We are given points: (-1,2), (0,-1) and (2,5)
Substitute each point one by one in the quadratic equation to check if the quadratic equation contains all points mention.
2) f(x) = 2x²- x - 1
Point(-1,2)
f(-1) = 2(-1)² -(-1) -1
2 = 2 + 1 - 1
2 = 2
Point(0,-1)
f(0) = 2(0)² -(0) -1
-1 = 0 - 0 -1
-1 = -1
Point(2,5)
f(2) = 2(2)² -(2) -1
5 = 8 - 2 -1
5 = 6 - 1
5 = 5
