Answer:
12
Step-by-step explanation:
(x-h)^2 + (y-k)^2 = r^2 so taking the square root of 144 gives you 12
Answer:
k is the vertical shift
Step-by-step explanation:
y=a(x-h)^2+k
This gives the parabola in vertex form
(h,k) is the vertex where h is the x coordinate and k is the y coordinate
k is the vertical shift
Answer:
2x^2+4x+x-2
Step-by-step explanation:
use FOIL (first, outside, inside, last)
(2x-1)(-x+2)
2x(-x)=-2x^2
2x(2)=4x
-1(-x)=x
-1(2)=-2
2x^2+4x+x-2
Answer:
A
Step-by-step explanation:
Using Pythagoras' identity on the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
t² + 12² = 13²
t² + 144 = 169 ( subtract 144 from both sides )
t² = 25 ( take the square root of both sides )
t = 
= 5 → A
